The R-K NPR series pilot operated (remote) pressure regulator is ideal for hard to reach places and for situations where instant fluid pressure changes are needed (such as spraying or rinsing applications). When the valve is installed the pressure can be adjusted from 5-100 P.S.I. with an air pressure regulator to protect the system from pressure changes. It will provide accurate outlet flow if a series of pressure regulators are required for a system or operation.
Wide working pressure range (5 to 100 PSIG)
Top entry for easy in-line maintenance and a minimum water hammer.
Air-to-open, spring to close.
Molded bodies are standard for 1/2", 3/4", and 1" valves
Suitable for most harsh chemical applications.

Upstream Pressure         Vacuum to 150 PSIG     

Air Actuating Pressure    5 to 100 PSIG

Regulated Pressure        5 to 100 PSIG

Material           ValveBody        PVC Type 1, Grade 1

                                    Polypropylene
                                    PVDF
                                    Teflon
                   Seal             EPDM
                                    Viton(R)
                                    Kalrez(R)

Temperature Range                0 F to 140 for PVC
                                 0 F to 180 F for POLYPRO
                                 0 F to 280 F for PVDF
                                 0 F to 340 F for TEFLON


Valve ports                      1/4" to 1" Valve FNPT
                                 1.5" to 2" Valve MPT
                                 All valves are fully ported

Mounting Method                  (4) 1/4" -20 tapped holes for
                                 standard machine valve body.
                                 (1/4" to 1.00")
                                 (2)Cut-out slots on molded
                                 valve body (1/2" to 1")