1 A4AD RAD 120

Details

Parker's A4AD pressure regulator features dual pressure regulating pilots in a single housing which allows users to control two different pressure set points without the need for additional piping, valves, or controls. The active pressure regulating pilot is selected using a standard pilot solenoid. This simple control gives users flexibility in their process but keeps implementation costs to a minimum. The A4AD is part of the popular A4A line and features common components and service parts.
Features and Benefits: Pilot Operated characterized Modulating Plug for precise control Suitable for all common refrigerants and oil 28bar (400psig) Maximum Rated Pressure (MRP) Flanges for threaded or welded steel pipe and copper tube (copper not for ammonia) Unique modular construction Interchangeable parts Easy to service Close coupled strainers, optional Many control variations are possible with the use of a few modules and kits Stainless Steel diaphragm Chrome plated Pilot Seat Manual Opening Stem

Application:

Capacity Control of an evaporator at two different pressure levels to regulate temperature Evaporator Pressure Control combined with Defrost Pressure Relief

Port Size
1"

Pressure Range
PSI 5 to 150 psig/75 to 280 psig

Capacity Range
Full Capacity

Coil Type
120/60 Hz-Leaded Standard

Flange Size
No Flanges

Strainer Type
Without Strainer

Pressure Set Point
40 psi/140 psi