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Fisher 133 Series direct-operated regulators

Fisher 133 Series direct-operated 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.

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

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