133 Series Pressure Reducing Regulators

The 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.

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
Reusable pressure seals
Resistance to piping stresses

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

Maximum Inlet Pressure

Operating:
- Type 133L: 60 psig (4,1 bar)
- Type 133H: 60 psig (4,1 bar)
Emergency:
- Type 133L: 125 psig (8,6 bar)
- Type 133H: 125 psig (8,6 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

Temperature Capabilities
-20 to 150°F (-29 to 66°C)

Approximate Weights

Type 133H End Connection Style: 35 Pounds (16 kg)
Type 133L End Connection Style: 40 Pounds (18 kg)