186091 Refrigerating Specialties (RS) 5 A4WZ DN Range A

These valves can be ordered with the Type RSW Strainer to be welded directly to the inlet of any of the Type A4W Regulators or use a 13mm (1/ 2") Type RSF Strainer in only the pilot circuit of a Type A4WE or A4WR version of the regulator. The A4W Series of regulators uses the same Modules as does the A4A Series to configure many possible variations. The purpose of the Type A4W Series of Pressure Regulators is to modulate the flow of refrigerant gas and/or liquid so as to maintain a constant set for pressure, regardless of load fluctuations. The regulators described in this bulletin control upstream (inlet) pressure except for the Type A4WOE, which controls downstream (outlet) pressure.Features:Cast Steel Body - Strong, Lightweight.Welds Directly in the Line - No Flanges.Removable Seat - Serviceable from Top Side.Streamlined Fluid Flow Pattern.Unique Modular Construction - Same Modules as A4A-DN Series.Interchangeable Parts.Pilot Operated Characterized Modulating Plug for Precise Control.Suitable for All Common Refrigerants and Oil25 bar (362 psig) Design Pressure (PS).Many Control Variations are Possible with the Use of a Few Modules and Kits.Stainless Steel Diaphragm.Stainless Steel Pilot Seat.Manual Opening Stem.Complies with Pressure Equipment Directive 97/23/EC