{"title":"Amerex KP Gas Valves","description":"","products":[{"product_id":"12792-amerex-1-25-mechanical-gas-valve","title":"12792 Amerex 1.25 Mechanical Gas Valve - OEM","description":"\u003cbody\u003e\n\n\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n\u003ctitle\u003eAmerex 12792 Mechanical Gas Valve 1-1\/4\" | OEM | KP Kitchen Suppression\u003c\/title\u003e\n\u003cstyle\u003e\n  .product-section { max-width: 100%; margin: 2rem 0; font-family: Arial, sans-serif; color: #333; }\n  .accordion-item { border-bottom: 1px solid #ddd; }\n  .accordion-header { display: flex; justify-content: space-between; padding: 2rem 0; cursor: pointer; background: none; border: none; width: 100%; text-align: left; color: #333; }\n  .accordion-header:hover, .accordion-header:focus { color: #333; background: none; outline: none; }\n  .accordion-title { font-size: 1.5rem; font-weight: 500; }\n  .accordion-icon { font-size: 1.5rem; }\n  .accordion-item.active .accordion-icon { transform: rotate(180deg); }\n  .accordion-content { max-height: 0; overflow: hidden; }\n  .accordion-item.active .accordion-content { max-height: none; }\n  .accordion-content-inner { font-size: 1.4rem; line-height: 1.7; color: #555; padding-bottom: 2rem; }\n  .accordion-content-inner p { margin: 0 0 1rem 0; }\n  .accordion-content-inner ul { margin: 0 0 1rem 0; padding-left: 2rem; }\n  .accordion-content-inner h3 { font-size: 1.4rem; font-weight: 600; color: #333; margin: 1.5rem 0 0.5rem 0; }\n  .specs-table { width: 100%; border-collapse: collapse; }\n  .specs-table th, .specs-table td { border: 1px solid #ddd; padding: 0.75rem 1rem; font-size: 1.4rem; text-align: left; }\n  .specs-table th { background-color: #f5f5f5; font-weight: 600; color: #333; }\n\u003c\/style\u003e\n\n\n\u003cdiv class=\"product-section\"\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eProduct Overview\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003cp\u003eThe Amerex 12792 is a 1-1\/4-inch mechanical pull-to-close brass gas shut-off valve designed for Amerex KP kitchen fire suppression systems. The 12792 uses the same latch-and-spring pull-to-close mechanism as the 12790 (3\/4-inch) and 12791 (1-inch) — a trip cable from the Amerex MRM or PRM release module pulls the latch on system activation, allowing an internal spring to close the valve and cut off the gas supply to the protected cooking appliances. The 1-1\/4-inch pipe size makes the 12792 the correct gas valve for larger commercial kitchen gas supply configurations where multiple high-BTU appliances share a 1-1\/4-inch main supply line.\u003c\/p\u003e\n      \u003cp\u003eIn large commercial kitchens — busy restaurants, school cafeterias, hospital kitchens, and institutional food service operations — the gas supply manifold serving the cooking line is often 1-1\/4-inch or larger to handle the combined BTU demand of multiple fryers, ranges, and griddles operating simultaneously. The 12792 provides the commercial kitchen emergency gas shut off valve capability needed for these larger configurations, cutting off the full 1-1\/4-inch gas supply during a Amerex KP system discharge. UL listed for both natural gas and LP gas service.\u003c\/p\u003e\n      \u003cp\u003eTogether with the 12790 (3\/4-inch) and 12791 (1-inch), the 12792 completes the three-size Amerex mechanical gas valve series that covers the full range of commercial kitchen gas supply line sizes for KP system installations. All three are available through authorized amerex distributors as standard amerex fire suppression system parts. For fire protection contractors managing large commercial kitchen portfolios, stocking all three sizes ensures the correct 1 inch gas valve, 3\/4 gas valve, or 1 1\/4 gas valve is immediately available for any Amerex KP installation or replacement situation without waiting for special orders.\u003c\/p\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eTechnical Specifications\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003ctable class=\"specs-table\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAmerex Corporation\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e12792\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003ePipe Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eMechanism\u003c\/td\u003e\n\u003ctd\u003ePull-to-close mechanical latch with spring closure\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eAmerex KP kitchen fire suppression\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eGas Type\u003c\/td\u003e\n\u003ctd\u003eNatural gas and LP gas (UL listed)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL Listed, NFPA 96, OEM Original\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eInstallation \u0026amp; Compliance (NFPA 96)\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003cp\u003eInstall the 12792 in the 1-1\/4-inch gas supply line upstream of all protected cooking appliances per NFPA 96, the amerex kp system manual, and local gas code. Identify the gas safety shut off valve location with gas shut off signage. In large kitchen installations where the 12792 controls gas supply to multiple appliances, verify the valve placement allows access for manual reset by kitchen personnel without requiring entry into the active fire hazard zone. Connect the trip cable to the Amerex MRM or PRM module per the amerex kp system manual. Test the 12792 at every semi-annual NFPA 17A and NFPA 96 inspection — confirm full valve closure and correct manual reset function. Document in the fire suppression system inspection record.\u003c\/p\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eFAQ\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003ch3\u003eIs 1-1\/4 inch the largest Amerex mechanical gas valve available?\u003c\/h3\u003e\n      \u003cp\u003eThe 12792 at 1-1\/4-inch is the largest model in the Amerex KP mechanical gas valve series. For kitchen fire suppression systems requiring gas shutoff on supply lines larger than 1-1\/4 inch, consult your amerex distributor regarding available options. Very large commercial kitchen installations with 1-1\/2-inch or 2-inch gas mains may require alternative gas shutoff solutions — verify with amerex distributors and the amerex kp system manual for your specific configuration.\u003c\/p\u003e\n      \u003ch3\u003eDoes the 12792 require any special installation tools?\u003c\/h3\u003e\n      \u003cp\u003eThe 12792 uses standard NPT female threaded connections and installs with standard pipe wrenches and thread sealant. No specialty tools are required. However, always verify the gas line is de-pressurized and the gas supply is shut off at the meter before installing or removing the 12792 gas safety shut off valve. Follow all applicable gas code requirements for work on gas supply piping in commercial kitchen environments.\u003c\/p\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cscript\u003e\ndocument.addEventListener('DOMContentLoaded', function() {\n  document.querySelectorAll('.accordion-header').forEach(h =\u003e h.addEventListener('click', function() { this.parentElement.classList.toggle('active'); }));\n});\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Amerex 12792 Mechanical Gas Valve 1-1\/4\\\" | OEM | KP Kitchen Suppression\",\n  \"description\": \"UL Listed OEM Amerex 12792 1-1\/4-inch brass mechanical pull-to-close gas valve for KP kitchen fire suppression systems. For large multi-appliance gas supply configurations. Natural gas and LP gas listed. NFPA 96 compliant. Semi-annual testing required.\",\n  \"sku\": \"12792\", \"mpn\": \"12792\",\n  \"brand\": { \"@type\": \"Brand\", \"name\": \"Amerex\" },\n  \"manufacturer\": { \"@type\": \"Organization\", \"name\": \"Amerex Corporation\" },\n  \"category\": \"Fire Suppression Equipment\"\n}\n\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Amerex","offers":[{"title":"Default Title","offer_id":45948459450533,"sku":"12792","price":507.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/5605\/8021\/files\/amerex-default-title-12792-amerex-1-25-mechanical-gas-valve-33372878569637_6701b9b2-15cc-4bd4-9c21-592aa18b4ccd.webp?v=1771286656"},{"product_id":"12790-amerex-3-4-mechanical-gas-valve","title":"12790 Amerex 3\/4 Mechanical Gas Valve - OEM","description":"\u003cbody\u003e\n\n\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n\u003ctitle\u003eAmerex 12790 Mechanical Gas Valve 3\/4\" | OEM | KP Kitchen Suppression\u003c\/title\u003e\n\u003cstyle\u003e\n  .product-section { max-width: 100%; margin: 2rem 0; font-family: Arial, sans-serif; color: #333; }\n  .accordion-item { border-bottom: 1px solid #ddd; }\n  .accordion-header { display: flex; justify-content: space-between; padding: 2rem 0; cursor: pointer; background: none; border: none; width: 100%; text-align: left; color: #333; }\n  .accordion-header:hover, .accordion-header:focus { color: #333; background: none; outline: none; }\n  .accordion-title { font-size: 1.5rem; font-weight: 500; }\n  .accordion-icon { font-size: 1.5rem; }\n  .accordion-item.active .accordion-icon { transform: rotate(180deg); }\n  .accordion-content { max-height: 0; overflow: hidden; }\n  .accordion-item.active .accordion-content { max-height: none; }\n  .accordion-content-inner { font-size: 1.4rem; line-height: 1.7; color: #555; padding-bottom: 2rem; }\n  .accordion-content-inner p { margin: 0 0 1rem 0; }\n  .accordion-content-inner ul { margin: 0 0 1rem 0; padding-left: 2rem; }\n  .accordion-content-inner h3 { font-size: 1.4rem; font-weight: 600; color: #333; margin: 1.5rem 0 0.5rem 0; }\n  .specs-table { width: 100%; border-collapse: collapse; }\n  .specs-table th, .specs-table td { border: 1px solid #ddd; padding: 0.75rem 1rem; font-size: 1.4rem; text-align: left; }\n  .specs-table th { background-color: #f5f5f5; font-weight: 600; color: #333; }\n\u003c\/style\u003e\n\n\n\u003cdiv class=\"product-section\"\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eProduct Overview\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003cp\u003eThe Amerex 12790 is a 3\/4-inch brass pull-to-close mechanical gas valve designed specifically for Amerex KP kitchen fire suppression systems. Under normal operation, the valve is held open by a latch mechanism. When the system activates, a trip cable from the Amerex MRM or PRM release module pulls the latch, allowing an internal spring to close the valve and shut off the gas supply safely and automatically — preventing fuel from reaching the protected cooking appliances during and after the wet chemical suppression discharge.\u003c\/p\u003e\n      \u003cp\u003eThe 3\/4-inch pipe size of the 12790 is the smallest in the Amerex mechanical gas valve series, making it the correct gas shut off valve for range applications where the gas supply line to a single small cooking appliance — a countertop fryer, small range, or standalone griddle — runs through 3\/4-inch pipe. Selecting the correct valve size for the actual pipe size is essential: an undersized valve creates gas flow restriction that affects appliance performance, while an oversized valve may not fully seal under the lower pressure conditions of a small-appliance gas line.\u003c\/p\u003e\n      \u003cp\u003eThe 12790 is UL listed for both natural gas and LP gas service. It is part of the same Amerex mechanical gas valve family as the 12791 (1-inch) and 12792 (1-1\/4-inch), all available through authorized amerex distributors as standard amerex fire suppression system parts. The commercial kitchen gas shut off valve function of the 12790 satisfies the NFPA 96 requirement for automatic gas shutoff in Amerex KP-protected cooking configurations. Test at every semi-annual NFPA 17A and NFPA 96 inspection and document in the fire suppression system inspection record.\u003c\/p\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eTechnical Specifications\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003ctable class=\"specs-table\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAmerex Corporation\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e12790\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003ePipe Size\u003c\/td\u003e\n\u003ctd\u003e3\/4 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eMechanism\u003c\/td\u003e\n\u003ctd\u003ePull-to-close mechanical latch with spring closure\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eAmerex KP kitchen fire suppression\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eGas Type\u003c\/td\u003e\n\u003ctd\u003eNatural gas and LP gas (UL listed)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL Listed, NFPA 96, OEM Original\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eInstallation \u0026amp; Compliance (NFPA 96)\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003cp\u003eInstall the 12790 in the 3\/4-inch gas supply line upstream of the protected appliance per NFPA 96, the amerex kp system manual, and applicable local gas code. Identify the gas safety shut off valve location with gas shut off signage. Connect the trip cable to the Amerex MRM or PRM module per the amerex kp system manual cable routing specifications — verify the routing distance is within the maximum approved cable length. Test the gas auto shut off valve at every semi-annual NFPA 17A and NFPA 96 inspection. A gas safety valve shut off failure is an immediate red-tag deficiency. Document in the fire suppression system inspection record. The manual reset must be accessible and operable by kitchen personnel after discharge without tools.\u003c\/p\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eFAQ\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003ch3\u003eCan I use the 12790 on a gas dryer or gas fireplace gas shut off valve application?\u003c\/h3\u003e\n      \u003cp\u003eThe 12790 is specifically listed for use in Amerex KP kitchen fire suppression system installations. While its 3\/4-inch gas shut off valve mechanics are similar to gas dryer shut off valve and gas fireplace gas shut off valve applications, its UL listing is specific to kitchen suppression system integration. For non-suppression gas shutoff applications consult the applicable gas code and use a valve listed for that specific application.\u003c\/p\u003e\n      \u003ch3\u003eIs the 12790 reset automatic after discharge?\u003c\/h3\u003e\n      \u003cp\u003eNo. The 12790 requires manual reset after each activation. After a system discharge, trained personnel must manually reset the pull-to-close latch before gas flow can resume to the protected appliance. This intentional design prevents cooking equipment from being re-energized before the suppression system has been serviced and recharged — an important safety step in the post-discharge kitchen reopening procedure.\u003c\/p\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cscript\u003e\ndocument.addEventListener('DOMContentLoaded', function() {\n  document.querySelectorAll('.accordion-header').forEach(h =\u003e h.addEventListener('click', function() { this.parentElement.classList.toggle('active'); }));\n});\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Amerex 12790 Mechanical Gas Valve 3\/4\\\" | OEM | KP Kitchen Suppression\",\n  \"description\": \"UL Listed OEM Amerex 12790 3\/4-inch brass mechanical pull-to-close gas valve for KP kitchen fire suppression systems. Natural gas and LP gas listed. Manual reset after discharge. NFPA 96 compliant. Semi-annual testing required.\",\n  \"sku\": \"12790\", \"mpn\": \"12790\",\n  \"brand\": { \"@type\": \"Brand\", \"name\": \"Amerex\" },\n  \"manufacturer\": { \"@type\": \"Organization\", \"name\": \"Amerex Corporation\" },\n  \"category\": \"Fire Suppression Equipment\"\n}\n\u003c\/script\u003e\n\n\u003c\/body\u003e","brand":"Amerex","offers":[{"title":"Default Title","offer_id":45948460531877,"sku":"12790","price":413.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/5605\/8021\/files\/amerex-default-title-12790-amerex-3-4-mechanical-gas-valve-33372879454373_9a8154ed-7bb9-4dfa-b07c-025269662787.webp?v=1771286655"},{"product_id":"12793-amerex-1-5-mechanical-gas-valve","title":"12793 Amerex 1.5 Mechanical Gas Valve - OEM","description":"\u003cbody\u003e\n\n\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n\u003ctitle\u003eAmerex 1.5\" Mechanical Gas Valve | Part No. 12793 | KP \/ ZD Series\u003c\/title\u003e\n\u003cstyle\u003e\n  .product-section {\n    max-width: 100%;\n    margin: 2rem 0;\n    font-family: Arial, sans-serif;\n    color: #333;\n  }\n  .accordion-item {\n    border-bottom: 1px solid #ddd;\n  }\n  .accordion-header {\n    display: flex;\n    justify-content: space-between;\n    padding: 2rem 0;\n    cursor: pointer;\n    background: none;\n    border: none;\n    width: 100%;\n    text-align: left;\n    color: #333;\n  }\n  .accordion-header:hover,\n  .accordion-header:focus {\n    color: #333;\n    background: none;\n    outline: none;\n  }\n  .accordion-title {\n    font-size: 1.5rem;\n    font-weight: 500;\n  }\n  .accordion-icon {\n    font-size: 1.5rem;\n  }\n  .accordion-item.active .accordion-icon {\n    transform: rotate(180deg);\n  }\n  .accordion-content {\n    max-height: 0;\n    overflow: hidden;\n  }\n  .accordion-item.active .accordion-content {\n    max-height: none;\n  }\n  .accordion-content-inner {\n    font-size: 1.4rem;\n    line-height: 1.7;\n    color: #555;\n    padding-bottom: 2rem;\n  }\n  .accordion-content-inner p {\n    margin: 0 0 1rem 0;\n  }\n  .accordion-content-inner ul {\n    margin: 0 0 1rem 0;\n    padding-left: 2rem;\n  }\n  .accordion-content-inner h3 {\n    font-size: 1.4rem;\n    font-weight: 600;\n    color: #333;\n    margin: 1.5rem 0 0.5rem 0;\n  }\n  .specs-table {\n    width: 100%;\n    border-collapse: collapse;\n  }\n  .specs-table th,\n  .specs-table td {\n    border: 1px solid #ddd;\n    padding: 0.75rem 1rem;\n    font-size: 1.4rem;\n    text-align: left;\n  }\n  .specs-table th {\n    background-color: #f5f5f5;\n    font-weight: 600;\n    color: #333;\n  }\n\u003c\/style\u003e\n\n\n\n\u003cdiv class=\"product-section\"\u003e\n\n  \u003c!-- Section 1: Product Overview --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\n      \u003cspan class=\"accordion-title\"\u003eProduct Overview\u003c\/span\u003e\n      \u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\n    \u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        \u003cp\u003eThe Amerex 1.5\" Mechanical Gas Valve (Part No. 12793) is a heavy-duty, brass shut-off component engineered for the Amerex KP (Kitchen Protection) and Zone Defense (ZD) systems. Serving as the primary source isolation point for medium-to-large kitchens, this valve is optimized for high-BTU appliance lines where maintaining high gas volume is critical. By immediately terminating the fuel supply upon system discharge, the 12793 effectively removes the fuel leg of the fire triangle, preventing re-flash in the hazard zone.\u003c\/p\u003e\n        \u003cp\u003eOperating on a normally closed kinematics principle, the 12793 is held open by a precision-engineered latch and cable tension. When the MRM triggers, the tension is released and a high-tension internal spring slams the valve disc into the seat. This purely mechanical design ensures the valve functions during power outages. Every 12793 is shipped with the Gas Trip Assembly (P\/N 12740), ensuring a standardized interface for high-volume header distribution serving industrial-scale charbroilers and fryer batteries.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Section 2: Technical Specifications --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\n      \u003cspan class=\"accordion-title\"\u003eTechnical Specifications\u003c\/span\u003e\n      \u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\n    \u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        \u003ctable class=\"specs-table\"\u003e\n          \u003cthead\u003e\n            \u003ctr\u003e\n              \u003cth\u003eFeature\u003c\/th\u003e\n              \u003cth\u003eDetails\u003c\/th\u003e\n            \u003c\/tr\u003e\n          \u003c\/thead\u003e\n          \u003ctbody\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eManufacturer\u003c\/td\u003e\n              \u003ctd\u003eAmerex Corporation\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003ePart Number\u003c\/td\u003e\n              \u003ctd\u003e12793\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003ePipe Diameter\u003c\/td\u003e\n              \u003ctd\u003e1.5-inch (1-1\/2\") NPT\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eValve Type\u003c\/td\u003e\n              \u003ctd\u003eMechanical \/ Normally Closed\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eMaterial\u003c\/td\u003e\n              \u003ctd\u003eRugged Brass \/ Stainless Internals\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003ePressure Rating\u003c\/td\u003e\n              \u003ctd\u003e10 PSIG (69 kPa)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd\u003eIncluded Hardware\u003c\/td\u003e\n              \u003ctd\u003eGas Trip Assembly (P\/N 12740)\u003c\/td\u003e\n            \u003c\/tr\u003e\n          \u003c\/tbody\u003e\n        \u003c\/table\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Section 3: Installation \u0026 Safety --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\n      \u003cspan class=\"accordion-title\"\u003eInstallation \u0026amp; Safety\u003c\/span\u003e\n      \u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\n    \u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        \u003cp\u003eThe 12793 must be installed by a licensed fire suppression technician in accordance with the Amerex KP or ZD system design manual and applicable local gas codes. The included Gas Trip Assembly (P\/N 12740) provides the standardized mechanical interface between the 1\/16\" control cable and the valve latch, preventing the use of field-fabricated components. Cable tension must be set to factory specifications to ensure the valve latch holds the valve fully open during normal operation.\u003c\/p\u003e\n        \u003cp\u003eDue to its rugged brass casting, the 12793 is significantly heavier than smaller appliance-level valves. The 1.5-inch NPT piping must be securely supported with appropriate hangers on both sides of the valve to prevent mechanical stress on the manifold. After installation, the technician must verify full valve travel by performing a manual trip test and confirming positive gas shutoff before the system is placed in service. Once tripped, the valve requires a manual reset by a certified technician before the system can be re-armed.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Section 4: FAQ --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\n      \u003cspan class=\"accordion-title\"\u003eFAQ\u003c\/span\u003e\n      \u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\n    \u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        \u003ch3\u003eWhy is 1.5\" considered the \"Sweet Spot\" for commercial kitchen lines?\u003c\/h3\u003e\n        \u003cp\u003eThe 1.5-inch NPT size is the most common diameter for main gas headers that supply a standard 10-foot to 15-foot cooking line. It provides sufficient volume for multiple heavy-duty appliances without the unnecessary weight and cost of an industrial 2-inch valve, ensuring high-volume header distribution without pressure drops.\u003c\/p\u003e\n\n        \u003ch3\u003eWhat is the purpose of the included 12740 Gas Trip Assembly?\u003c\/h3\u003e\n        \u003cp\u003eThe 12740 Gas Trip Assembly provides the standardized mechanical interface between the 1\/16\" control cable and the valve latch. Including this hardware with the 12793 prevents the use of field-fabricated components, ensuring that the kinematic release of the valve remains consistent and compliant with UL 300 standards.\u003c\/p\u003e\n\n        \u003ch3\u003eDoes this valve support higher pressures than smaller models?\u003c\/h3\u003e\n        \u003cp\u003eYes. While many smaller appliance-level valves are rated for 5 PSI, the 12793 is rated for up to 10 PSIG. This makes it suitable for facilities with higher-pressure gas service where it must manage the fuel load for high-BTU appliance lines without leaking.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript\u003e\ndocument.addEventListener('DOMContentLoaded', function() {\n  const headers = document.querySelectorAll('.accordion-header');\n  headers.forEach(header =\u003e {\n    header.addEventListener('click', function() {\n      this.parentElement.classList.toggle('active');\n    });\n  });\n});\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Amerex 1.5\\\" Mechanical Gas Valve\",\n  \"description\": \"Heavy-duty 1.5-inch (1-1\/2 inch) NPT normally closed mechanical gas shutoff valve for Amerex KP and Zone Defense fire suppression systems. Rugged brass body with stainless internals. Rated to 10 PSIG (69 kPa). Includes Gas Trip Assembly (P\/N 12740). Purely mechanical spring-loaded fail-closed design for power-outage reliability.\",\n  \"sku\": \"12793\",\n  \"mpn\": \"12793\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Amerex\"\n  },\n  \"manufacturer\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Amerex Corporation\"\n  },\n  \"category\": \"Fire Suppression Equipment\",\n  \"additionalProperty\": [\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Part Number\",\n      \"value\": \"12793\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Pipe Diameter\",\n      \"value\": \"1.5-inch (1-1\/2 inch) NPT\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Valve Type\",\n      \"value\": \"Mechanical \/ Normally Closed\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Material\",\n      \"value\": \"Rugged Brass \/ Stainless Internals\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Pressure Rating\",\n      \"value\": \"10 PSIG (69 kPa)\"\n    },\n    {\n      \"@type\": \"PropertyValue\",\n      \"name\": \"Included Hardware\",\n      \"value\": \"Gas Trip Assembly (P\/N 12740)\"\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\n\u003c\/body\u003e","brand":"Amerex","offers":[{"title":"Default Title","offer_id":45948463448229,"sku":"12793","price":569.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/5605\/8021\/files\/amerex-default-title-12793-amerex-1-5-mechanical-gas-valve-33372889088165_ad500d96-6481-4a6a-923b-518307e2f440.webp?v=1771286653"},{"product_id":"12791-amerex-1-mechanical-gas-valve","title":"12791 Amerex 1\" Mechanical Gas Valve - OEM","description":"\u003cbody\u003e\n\n\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n\u003ctitle\u003eAmerex 12791 Mechanical Gas Valve 1\" | OEM | KP Kitchen Suppression\u003c\/title\u003e\n\u003cstyle\u003e\n  .product-section { max-width: 100%; margin: 2rem 0; font-family: Arial, sans-serif; color: #333; }\n  .accordion-item { border-bottom: 1px solid #ddd; }\n  .accordion-header { display: flex; justify-content: space-between; padding: 2rem 0; cursor: pointer; background: none; border: none; width: 100%; text-align: left; color: #333; }\n  .accordion-header:hover, .accordion-header:focus { color: #333; background: none; outline: none; }\n  .accordion-title { font-size: 1.5rem; font-weight: 500; }\n  .accordion-icon { font-size: 1.5rem; }\n  .accordion-item.active .accordion-icon { transform: rotate(180deg); }\n  .accordion-content { max-height: 0; overflow: hidden; }\n  .accordion-item.active .accordion-content { max-height: none; }\n  .accordion-content-inner { font-size: 1.4rem; line-height: 1.7; color: #555; padding-bottom: 2rem; }\n  .accordion-content-inner p { margin: 0 0 1rem 0; }\n  .accordion-content-inner ul { margin: 0 0 1rem 0; padding-left: 2rem; }\n  .accordion-content-inner h3 { font-size: 1.4rem; font-weight: 600; color: #333; margin: 1.5rem 0 0.5rem 0; }\n  .specs-table { width: 100%; border-collapse: collapse; }\n  .specs-table th, .specs-table td { border: 1px solid #ddd; padding: 0.75rem 1rem; font-size: 1.4rem; text-align: left; }\n  .specs-table th { background-color: #f5f5f5; font-weight: 600; color: #333; }\n\u003c\/style\u003e\n\n\n\u003cdiv class=\"product-section\"\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eProduct Overview\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003cp\u003eThe Amerex 12791 is a 1-inch brass-body mechanical gas valve specifically designed for Amerex KP and Zone Defense kitchen fire suppression systems. It uses a pull-to-close latch mechanism — under normal operation the valve is held open by a latch, and when the suppression system activates, a trip cable from the release module pulls the latch to close the valve via an internal spring, shutting off the gas supply automatically and safely. This gas shut off valve for range applications is UL listed for both natural gas and LP gas service, covering the two fuel types found in commercial kitchen installations.\u003c\/p\u003e\n      \u003cp\u003eThe Amerex 12791 is the 1-inch companion to the 12790 (3\/4-inch) and 12792 (1-1\/4-inch) mechanical gas valves — together covering the three most common gas supply line sizes for commercial kitchen cooking equipment. Per NFPA 96, an automatic gas shutoff valve is required for all gas-fueled appliances protected by a kitchen fire suppression system. The mechanical pull-to-close design of the 12791 requires no electrical power to actuate — the spring closure mechanism operates entirely via the mechanical cable from the KP system's MRM or PRM release module, making it inherently fail-safe during power outages.\u003c\/p\u003e\n      \u003cp\u003eFor fire protection contractors completing Amerex KP system installations, keeping all three gas valve sizes (12790, 12791, and 12792) in inventory as part of your amerex fire suppression system parts supply ensures the correct gas range shut off valve is available for any commercial kitchen gas line size encountered. The gas safety shut off valve must be tested at every semi-annual NFPA 17A and NFPA 96 inspection — triggering a simulated system discharge and confirming the valve closes fully and the manual reset functions correctly. Identify the gas shut off valve location with gas shut off signage per code.\u003c\/p\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eTechnical Specifications\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003ctable class=\"specs-table\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAmerex Corporation\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e12791\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003ePipe Size\u003c\/td\u003e\n\u003ctd\u003e1 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eMechanism\u003c\/td\u003e\n\u003ctd\u003ePull-to-close mechanical latch with spring closure\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eAmerex KP and Zone Defense kitchen fire suppression\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eGas Type\u003c\/td\u003e\n\u003ctd\u003eNatural gas and LP gas (UL listed)\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL Listed, NFPA 96, OEM Original\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n      \u003ch3\u003eAmerex Mechanical Gas Valve Series\u003c\/h3\u003e\n      \u003ctable class=\"specs-table\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePart No.\u003c\/th\u003e\n\u003cth\u003ePipe Size\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003e12790\u003c\/td\u003e\n\u003ctd\u003e3\/4 inch\u003c\/td\u003e\n\u003ctd\u003eSmall single-appliance configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003e12791\u003c\/td\u003e\n\u003ctd\u003e1 inch\u003c\/td\u003e\n\u003ctd\u003eStandard single or multi-appliance\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003e12792\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 inch\u003c\/td\u003e\n\u003ctd\u003eLarger multi-appliance configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eInstallation \u0026amp; Compliance (NFPA 96)\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003ch3\u003ePlacement and Gas Code Compliance\u003c\/h3\u003e\n      \u003cp\u003eInstall the 12791 in the 1-inch gas supply line upstream of all protected cooking appliances per NFPA 96 and local gas code. The mechanical gas valve must be accessible for manual reset after system discharge. Comply with the commercial kitchen gas shut off valve placement requirements in the amerex kp system manual and verify local gas code acceptance of pull-to-close mechanical valves at your installation jurisdiction. Identify the valve location with gas shut off signage.\u003c\/p\u003e\n      \u003ch3\u003eTrip Cable Routing\u003c\/h3\u003e\n      \u003cp\u003eConnect the 12791 trip cable to the Amerex MRM or PRM release module per the amerex kp system manual cable routing specifications. Maximum cable run lengths apply — verify the routing distance is within the approved specification before finalizing valve placement. The gas safety shut off valve must close fully within the required time after cable release during commissioning testing.\u003c\/p\u003e\n      \u003ch3\u003eSemi-Annual Inspection\u003c\/h3\u003e\n      \u003cp\u003eTest the 12791 at every semi-annual NFPA 17A and NFPA 96 inspection by simulating a system discharge and confirming the gas safety valve shut off closes completely. Verify the manual reset functions correctly after the test. A valve that fails to close or reset is an immediate red-tag deficiency. Document in the fire suppression system inspection record.\u003c\/p\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\"\u003e\u003cspan class=\"accordion-title\"\u003eFAQ\u003c\/span\u003e\u003cspan class=\"accordion-icon\"\u003e⌄\u003c\/span\u003e\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\u003cdiv class=\"accordion-content-inner\"\u003e\n      \u003ch3\u003eWhat is the difference between a mechanical gas valve and an electric gas valve?\u003c\/h3\u003e\n      \u003cp\u003eThe Amerex 12791 mechanical gas valve closes via a spring mechanism triggered by a pull cable — it requires no electrical power to actuate. An electric gas valve (like those used in some Pyro-Chem and ANSUL configurations) uses an electric solenoid to close the valve on a power signal. The mechanical design of the 12791 is inherently fail-safe during power outages, making it the preferred gas valve type for Amerex KP kitchen fire suppression systems where electrical integration is not required or available.\u003c\/p\u003e\n      \u003ch3\u003eCan the 12791 be used on a Pyro-Chem or ANSUL system?\u003c\/h3\u003e\n      \u003cp\u003eThe 12791 is listed specifically for Amerex KP and Zone Defense systems. While the pull-to-close mechanical principle is similar across brands, the trip cable geometry, latch mechanism, and UL listing are system-specific. For Pyro-Chem systems, use the appropriate Pyro-Chem GV-series gas valve. Always match the gas valve to the system manufacturer per amerex fire suppression system parts documentation.\u003c\/p\u003e\n    \u003c\/div\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cscript\u003e\ndocument.addEventListener('DOMContentLoaded', function() {\n  document.querySelectorAll('.accordion-header').forEach(h =\u003e h.addEventListener('click', function() { this.parentElement.classList.toggle('active'); }));\n});\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Amerex 12791 Mechanical Gas Valve 1\\\" | OEM | KP Kitchen Suppression\",\n  \"description\": \"UL Listed OEM Amerex 12791 1-inch brass mechanical pull-to-close gas valve for KP and Zone Defense kitchen fire suppression systems. Natural gas and LP gas listed. Spring closure, no electricity required. NFPA 96 compliant. 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