The 121-12-2-V PORT Regulator is 2-inch in size with 12" to 28" water column. This regulator has V-Port valve which increase turndown for regulation at lower flows. Model 121 Regulator protects burners, boilers, furnaces, air heaters, kilns and gas engines from overpressurization. This is designed with new technology to provide excellent performance, larger capacity, higher inlet pressure, and faster response. It is compatible with natural gas, propane, LPG, air nitrogen, etc..
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