The A2B products are compact pressure regulators that maintain upstream or downstream despite fluctuations in load.

Parker’s A2 series of compact pressure regulators help reduce system cost and complexity by utilizing a compact housing and direct operation. These valves are ideal for applications where a larger pilot operating valve is too costly or too large. The regulators can be used with ammonia and certain other refrigerants, oil, and other approved fluids. The regulators are ideal for use in systems where a small inlet or outlet pressure regulator is needed and can also be used as a remote pilot for larger control valves that are located in difficult to service areas.

Market:

• Industrial Refrigeration

• Commercial Refrigeration

Features and Benefits:

• Compact Direct Diaphragm Operated

• Design Pressure (MRP): 27.6 bar (400 PSIG)

• Furnished with Flanged Connections: FPT, SW, WN or ODS

• Available with Close Coupled Strainer

• Stainless Steel Diaphragm

• Easily removed for service

Application:

• May be used as a remote pilot for larger valves.

• Modulates flow of refrigerant gas or liquid to maintain constant upstream (or inlet) pressure as set-for, despite load fluctuations. The fluid temperature range for the A2 Series of Regulators is -45°C to 105°C (-50°F to 220°F).

MAXIMUM RATED PRESSURE (BAR)

27.6bar or 28bar

MAXIMUM RATED PRESSURE (PSIG)

400psig or 406psig

MINIMUM WORKING TEMPERATURE (C)

-45°C

MINIMUM WORKING TEMPERATURE (F)

-50°F

MAXIMUM WORKING TEMPERATURE (C)

105°C

MAXIMUM WORKING TEMPERATURE (F)

220°F

FLOW COEFFICIENT (KV)

0.09 Kv to 1.28 Kv

FLOW COEFFICIENT (CV)

0.1 Cv to 1.14 Cv

PRESSURE REGULATOR TYPE

Outlet- Internally Equalized, Outlet- Externally Equalized, N/A, Inlet- No Variation, Inlet- With Handwheel, Inlet- Re-Seating Relief, Inlet- Electrically Compensated, Inlet- Pneumatically Compensated (1:1 Ratio), Inlet- Pneumatically Compensated (3:1 Rat

PRESSURE RANGE (BAR)

500mm Hg to 8.3bar, 5.2 to 19.3bar, 0.35 to 10bar

PRESSURE RANGE (PSIG)

20 Hg to 120psig, 75 to 280psig, 5 to 150psig

PRESSURE SET POINT (BAR)

1.0 to 19.3bar

PRESSURE SET POINT (PSIG)

15 to 280psig

FLANGE TYPE

FPT, Socket Weld, No Flange, ODS, Weld Neck

CONNECTION SIZE

1/4″ to 3/4″ or None

MOTOR TYPE

None, Not Available, Motor Assembly~ 120 V 50/60 Hz 4-20 mA Standard CAM, Mounting Kit~ Standard CAM

STRAINER TYPE

Without Strainer or With Strainer

VALVE MATERIAL

Standard Material or Meets Pressure Equipment Directive (PED)

PLATING

No Plating

BODY MATERIAL

Gray Iron or Ductile Iron