Pressure Equipment Directive (PED) Classification Guide for Regulator Products

Fisher™ 133 Series Pressure Reducing Regulators

Fisher 133 Series direct-operated regulators are ideal for industrial and commercial applications supplying gas to furnaces, burners, and other appliances. A balancing system enables the regulator to control gas pressure accurately for maximum combustion efficiency despite varying inlet pressures.

FeaturesWide pressure range capability with single regulatorTypes 133L, 133H, and 133HP suitable for monitoring applicationsExcellent shock characteristics and fast speed of responseBubble-tight shutoffSpring and diaphragm effects minimizedNo seat-to-seat adjustment requiredEasy access to trim partsSteel Body AvailableSpecificationsBody Size and End Connection StylesCast Iron: 2 NPT, NPS 2 / DN 50 CL125 FF flanged end connections
Steel Body: 2 NPT, NPS 2 / DN 50 CL150 RF flanged end connections
Operating Maximum Inlet PressureType 133L: 125 psig / 8,6 bar
Type 133H: 60 psig / 4,1 bar
Type 133HP: 150 psig / 10,3 bar
Emergency Maximum Inlet PressureType 133L: 125 psig / 8,6 bar
Type 133H: 125 psig / 8,6 bar
Type 133HP: 150 psig / 10,3 bar
Maximum Outlet (Casing) Pressure15 psig / 1,0 barOutlet Pressure Range2-inch w.c. to 10 psig / 5 mbar to 0,69 bar in 9 ranges
Type 133HP: 2 to 60 psig / 0,14 to 4,1 bar in seven ranges
Temperature Capabilities-20°F to 150°F / -29° to 66°CApproximate WeightsType 133H End Connection Style:?35?Pounds / 16 kg
Type 133L End Connection Style: 40 Pounds / 18 kg
Type 133HP: NPT: 56.5 pounds / 26 kg; CL125 RF and CL250 RF: 62.5 pounds / 28 kg
Pressure RegistrationExternal