A8AL-10series Parker - Refrigerating Specialties A8AL Differential Pressure Regulator with Electric Bypass

A8 Pressure regulators can conveniently be identified by three primary types: inlet, outlet, and differential regulator versions. Inlet pressure regulators open on a rise in inlet pressure above the valve' set point, and close when the inlet pressure drops below the valve's set point. Outlet pressure regulators maintain a constant outlet or downstream pressure.
Outlet regulators will open when outlet pressure falls below the valves set point and close when the outlet pressure is above it' set point.
Differential pressure regulators will open when the pressure difference across the regulator is greater than the valves set point. Conversely, they will close when the pressure difference across the valve is below the valve' set point.
In addition, these three categories of valves, inlet, outlet, and differential, can also have optional variations added to the basic regulator, such as an electric shut-off feature, or bypass (electric wide opening) feature. Please refer to the inside back cover of this condensed catalog for a complete listing of all A8 regulator variations and their typical applications.

Features:

• Dual spring for wide range pressure set-points
• Pilot operated for close control at desired set-point
• Excellent regulation at light loads
• Interchangeable capacity cartridges
• Inlet, outlet or differential regulator functions
• Low pressure drop
• Few moving parts
• Long-life stainless steel diaphragms (no bellows to fail)
• Variations available for pilot electric shut-off and pilot electric wide-opening pressure control
• Manual opening feature
• All service from the top
• Sweat-in-place without disassembly
• Furnished with access fitting
• UL listed (except 50 Hertz versions)

Specifications:

• Design pressure (PS): 31.0 bar (450 psig)
• Range: 250mm hg to 27.6 bar (10" hg to 400 psig)