The Model KN is a secondary regulator designed for maximum sensitivity and simple, trouble-free operation. It is suitable for use with low pressure Natural Gas and vaporized LPG. This regulator is typically used in service applications up to 30 kW (40 HP). A new high-flow capacity unit is also available with a ½” orifice, suitable for service applications up to 37 kW (50 HP). The KN regulator may easily and quickly be refurbished with the appropriate IMPCO repair kit.
|Inlet NPT||Outlet NPT||Max Inlet
|039-31173||3/4″||3/8″||8 oz||4 oz / Red||No||Yes||7/16″|
Fuel Type LPG Vapor or Natural Gas Vapor
Operating Temperature -40°F to +250°F (-40°C to +121°C)
Mounting Position As close to the carburetor as possible with the arrow on the back cover pointing up to minimize the effects of gravity on diaphragm travel. Horizontal position can be used when fuel contamination can be controlled with HD-5 or HD-10 specified LPG fuel.
Diaphragm Material Silicone
Certification UL (AU1502) – inquire for specific ECE approval
Maximum 13.84” Water Column (3.44 kPa)
Nominal Outlet Pressure -0.12 kPa (-0.5” or below Water Column)
Initial Flow Pressure -0.05 to -0.35 Water Column
LPG (standard) 40 HP (30 kW)
LPG (high flow) 50 HP (37 kW)
Natural Gas (standard) 25 HP (19 kW)
Natural Gas (high flow) 30 HP (22 kW)