Back pressure regulators are installed downstream of a pressure reducing regulator and vent excess pressure in case the main regulator fails to close.
1289 SeriesModels: 1289H, 1289HH & 1289L
Designed for high flow capacities using a large diaphragm and pitot tube booster. Its quick response and throttling capabilities make it ideal for commercial/industrial heating equipment requiring reliable protection.
Pressure Range (Setting): 7″WC – 75 PSI
Maximum Inlet Pressure: 25 – 100 PSI
225LP & 201 SeriesModels: 225LP, 225LP2, 225LP4 & 201
Designed for low flow capacities in a compact design. Its quick response and throttling capabilities make it ideal for commercial/industrial heating equipment requiring reliable protection.
Pressure Range (Setting): 12″WC – 150 PSI
Maximum Inlet Pressure: 30 – 375 PSI
Size Range: 3/4″ – 2″ NPT, 2″ Flanged
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