Type P143M Gas Pressure Regulator with Internal Monitor
The P143M comes equipped with a sliding orifice and second seat. In the event of the primary seat being unable to achieve lockup, the diaphragm plate continues to rise and the lever pushes the seat and orifice through the orifice collar and against a second seat located on the opposite side of the regulator body.
Features:- Control Accuracy
- Compact Design
- Low Pressure Cut-off
- Commercial, residential and light industrial for burners and unit heaters
- Can be used as LP regulator.
Filter Connection
NPT
Application(s)
Residential, Commercial, Industrial
Body, Bonnet, Diaphragm Material
O-rings and Diaphragm Nitrile or Fluorocarbon
Spring Range
Red Spring 3.5" – 6.5" WC
Blue Spring 5"– 8.5" WC
Green Spring 6" – 14" WC
Orange Spring 12" – 33" WC
Purple Spring 1/2 – 2 PSIG
Yellow Spring 1/2 – 3 PSIG
Black Spring 2 – 6 PSIG
Blue Spring 5"– 8.5" WC
Green Spring 6" – 14" WC
Orange Spring 12" – 33" WC
Purple Spring 1/2 – 2 PSIG
Yellow Spring 1/2 – 3 PSIG
Black Spring 2 – 6 PSIG
Orifice Size
1/8
3/16
1/4
5/16
3/8
1/2
5/8
3/16
1/4
5/16
3/8
1/2
5/8
Port Size
3/4 x 3/4 NPT Ports
3/4 x 1 NPT Ports
1 x 1 NPT Ports
1 x 1-1/4 NPT Ports
1-1/4 x 1-1/4 NPT Ports
3/4 x 1 NPT Ports
1 x 1 NPT Ports
1 x 1-1/4 NPT Ports
1-1/4 x 1-1/4 NPT Ports
Body Outlet Size
3/4" x 3/4"
3/4" x 1"
1” x 1"
1" x 1-1/4"
1-1/4" x 1-1/4"
3/4" x 1"
1” x 1"
1" x 1-1/4"
1-1/4" x 1-1/4"
Body Inlet Size
3/4" x 3/4"
3/4" x 1"
1” x 1"
1" x 1-1/4"
1-1/4" x 1-1/4"
3/4" x 1"
1” x 1"
1" x 1-1/4"
1-1/4" x 1-1/4"
Max Inlet Body Pressure
125 PSI (varies by orifice size)
Product Description
Type P143M Gas Pressure Regulator with Internal Monitor
Model
143M
Series
Type 143 Series
Find Your Part Number
Not sure? Call for help. Phone: 304-387-1200
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