Parker Solenoid Valves R42 - R57 Installation & Servicing Instructions
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aerospace climate control electromechanical filtration fluid & gas handling hydraulics pneumatics process control sealing & shielding Parker Solenoid Valves R42 - R57 Installation & Servicing Instructions Catalog D-1a, May 2010 ENGINEERING YOUR SUCCESS.

® Valves with mounting holes use a #8-32 screw torqued not more than 15 in.-lb. ® Coil housing must not be below horizontal. Note: Standard torque charts do not apply. Do not over tighten the enclosing tube locknut. Damage to the enclosing tube assembly could result from over tightening. For installation and service instructions on Parker Three-Way Heat Reclaim Valves, Types P8D and P12D, request SD-337. Page 2 / Catalog D-1a NOT FOR USE ON HAZARDOUS OR CORROSIVE FLUIDS • The molded PKC-1 coil fits the R52 series normally closed solenoid valves. • The OPKC-1 coil fits the R53 series...

Screw (normally closed) Lock Nut (normally open) Spacer Cup (normally open) Design A Typical view of R56 Series Solenoid Valve Design B Typical view of R42, R43, R46, and R47 Series Solenoid Valves Design C Typical view of R52 Series Solenoid Valve Spacer (normally open) Enclosing Tube Lock Nut Enclosing Tube (normally closed) Pilot Assembly Enclosing Tube Gasket Pilot Assembly Enclosing Tube (normally open) Closing Spring Enclosing Tube Gasket Stem & Plunger Assembly (normally closed) Piston Assembly O-Ring (Large) O-Ring (Small) Design B Body (R42, R43, R46, R47 Series) Manual Lift Stem...