P212 Pressure Regulator

Product catalog summary

Overview: The BelGAS P212 gas pressure regulator is a direct operating, spring-loaded adjustable regulator designed for pressure reduction applications. It is based on the P202 platform and features a full relieving regulator through a diaphragm relief device. The P212 is available in ductile cast iron or WCB steel body, with flanged or threaded connections, and can handle wide pressure ranges.

Specifications:

Pressure ranges: 2" water column to 5 PSIG.
Maximum emergency outlet pressure: 15 PSIG.
Port sizes: 1.25 NPT, 1.5 NPT, 1.5 NPT x 2 NPT, 2 NPT.
Orifice sizes: 1/4", 3/8", 1/2", 3/4", 1", 1-3/16".
Materials: Aluminum, ductile iron, WCB steel, nitrile.

Applications: Suitable for compressors, gas engines, and service regulators.

Performance Data:

Flow capacities are provided in SCFH (Nm3/h) for natural gas with a specific gravity of 0.6.
Relief data is available for various spring settings and orifice sizes.

Warnings: Ensure maximum inlet and outlet pressures are not exceeded to prevent damage.

Flow Capacities: The document provides tables of flow capacities for different body sizes (NPT 1-1/2 and NPT 2) and orifice sizes ranging from 1/4 inch to 1-3/16 inch. Capacities are listed for various outlet pressures and accuracy levels, with notes on limitations due to boost and maximum operating inlet pressures.

Parts List: A comprehensive parts list details each component's description and part number, including the bonnet cap, adjusting screw, thrust washer, roller bearing, lever, and various gaskets and screws.

Assembly Diagram: A parts drawing illustrates the standard configuration and placement of each component, aiding in the assembly and maintenance of the regulator.

Critical Information: The document highlights areas where the maximum operating inlet pressure is exceeded, indicating potential limitations in certain configurations. It also notes the impact of boost on flow capacities.

Catalog excerpts

• Minimize Sudden Downstream Load Change • Wide Pressure Ranges • Full Relief Valve The BelGAS P212 gas pressure regulator is a direct operating, spring loaded adjustable regulator, used in applications where pressure reduction is required. The P212 is built on the reliable and time proven P202 platform and has been enhanced to offer a full relieving regulator through the diaphragm relief device. When used with a 2.5" bonnet vent port, the P212 becomes a fully relieving pressure regulator. Available in pressure ranges from 2" of water column up to 5 PSIG, making them ideal for use in applications where wide variations in pressure reduction are also required. The BelGAS Type P212 is offered with choice of ductile cast iron or WCB steel body, flanged or threaded. Applications • Compressors • Gas Engines • Service Regulators Materials of Construction P212 Series Maximum Inlet Pressure

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Configuration Normal High Spring Range - WC or PSI / mBAR P212 Dimensions Body Size H Version Only 1 - 2 PSIG 1.5 - 3.25 PSIG 2 - 5 PSIG Special Construction None 150 RF (2" Steel Only) 125 FF (2" Iron Only) P212 Standard P212 Flanged belgas.net Port Orientation Up (Standard) Down Right Left Bonnet Orientation 12 O'Clock 3 O'Clock (Standard) 6 O'Clock 9 O'Clock Body Material Iron Steel

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P212 Head Only P212 Configuration Normal High Spring Range - WC or PSIG / mBAR 2 - 5 PSIG Special Construction None 12 O'Clock 3 O'Clock (Standard) A DIVISION OF MARSH BELLOFRAM A DIVISION OF MARSH BELLOFRAM PART NUMBER PART NUMBER 2. MAX OPERATING OUTLET PRESSURE 2. MAX OPERATING OUTLET PRESSURE 2. MAX OPERATING OUTLET PRESSURE 3. MAX EMERGENCY OUTLET (CASING) PRESSURE 3. MAX EMERGENCY OUTLET (CASING) PRESSURE 3. MAX EMERGENCY OUTLET (CASING) PRESSURE 4. OUTLET PRESSURE MORE THAN 4. OUTLET PRESSURE MORE THAN 4. OUTLET PRESSURE MORE THAN 4. OUTLET PRESSURE MORE THAN SETPOINT MAY DAMAGE PARTS....

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P212 Normal (L) Relief Capacities P212 RELIEF DATA, 1-2 PSIG SPRING @ 2 PSIG, LEVER DISCONNECTED 1/4" Orifice Outlet Pressure (PSIG) P212 High (H) Relief Capacities P212 RELIEF DATA, 5-9 " WC SPRING @ 7 " WC, LEVER DISCONNECTED 1/4" Orifice Outlet Pressure (PSIG)

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P212 Flow Capacities in SCFH (Nm3/h) of 0.6 Specific Gravity Natural Gas Outlet Pressure, Spring Part Number, and Accuracy 4 inches w.c. (10 mbar) 655-697-002 or 655-697-003 1 inch w.c. (2 mbar) droop 2 inches w.c. (5 mbar) boost Inlet Pressure Orifice Size, Inches (mm) 1 inch w.c. (2 mbar) droop 2 inches w.c. (5 mbar) boost 20 inches w.c. (50 mbar) 655-697-006 ± 3 inches w.c. (7 mbar) 1. Limited due to boost - Shaded areas show where indicated droop would be exceeded regardless of capacity. - Shaded areas show where maximum operating inlet pressure for a given port diameter is exceeded. 112

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P212 Flow Capacities in SCFH (Nm3/h) of 0.6 Specific Gravity Natural Gas Outlet Pressure, Spring Part Number, and Accuracy Inlet Pressure NPT 2 (DN 50) Body Size Orifice Size, Inches (mm) 4 inches w.c. (10 mbar) 655-697-002 or 655-697-003 1 inch w.c. (2 mbar) droop 2 inches w.c. (5 mbar) boost 1 inch w.c. (2 mbar) droop 2 inches w.c. (5 mbar) boost 11 inches w.c. (17 mbar) 655-697-005 ± 2 inches w.c. (5 mbar) 14 inches w.c. (35 mbar) 655-697-005 ± 2 inches w.c. (5 mbar) 20 inches w.c. (50 mbar) 655-697-006 ± 3 inches w.c. (7 mbar)

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P212 Flow Capacities in SCFH (Nm3/h) of 0.6 Specific Gravity Natural Gas

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P212 Flow Capacities in SCFH (Nm3/h) of 0.6 Specific Gravity Natural Gas - Shaded areas show where maximum operating inlet pressure for a given port diameter is exceeded

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P212H Flow Capacities in SCFH (Nm3/h) of 0.6 Specific Gravity Natural Gas

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P212H Flow Capacities in SCFH (Nm3/h) of 0.6 Specific Gravity Natural Gas

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P212H Flow Capacities in SCFH (Nm3/h) of 0.6 Specific Gravity Natural Gas - Shaded areas show where maximum operating inlet pressure for a given port diameter is exceeded.

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