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.
Specifications
Body Size and End Connection Styles
Cast 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 Pressure
Type 133L: 125 psig / 8,6 bar
Type 133H: 60 psig / 4,1 bar
Type 133HP: 150 psig / 10,3 bar
Emergency Maximum Inlet Pressure
Type 133L: 125 psig / 8,6 bar
Type 133H: 125 psig / 8,6 bar
Type 133HP: 150 psig / 10,3 bar
Maximum Outlet (Casing) Pressure
15 psig / 1,0 bar
Outlet Pressure Range
2-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°C
Features
Wide pressure range capability with single regulator
Types 133L, 133H, and 133HP suitable for monitoring applications
Excellent shock characteristics and fast speed of response
Bubble-tight shutoff
Spring and diaphragm effects minimized
No seat-to-seat adjustment required
Easy access to trim parts
Steel Body Available
