Parker - Refrigerating Specialties: A404AA00A7X00X08NXSN, 4", A4AJ, 0-10VDC Module

These compact, heavy duty, electronically controlled pilot operated , iron alloy (ASTM A126 Class B) regulators are suitable for Ammonia, R22, R1/4A and other common refrigerants. All/4AJ regulators are electronically pilot operated using upstream pressure for the opening force and require a minimum 2 psi (0./4 bar) pressure drop to fully open the main valve. These valves are generally ordered with close coupled upstream strainers to prevent entrance of foreign material into the valve and the rest of the system. (See current Bul 00-10 for strainer information.)