The R-K UPF (Ultra-pure Diaphragm Pressure Regulator) features a compact molded and/or machined thermoplastic valve especially designed to be used in critical low pressure and/or high purity fluid regulating applications.
Adjustable screw(type1)makes it easy to convert varying upstream pressure into accurate pre-set downstream pressure.
Type 2(1:1 ratio)uses air pressure to control the regulating process. Downstream pressure will be equal to applied air pressure.
No metal or elastomer contact with the fluid.
One piece of TEFLON diaphragm and piston combination.
Self-draining to prevent contamination and bacteria growth.
Direct acting full flow and top entry for easy maintenance and minimum water hammer.
Available in Flare,Buttfusion,or NPT ends.
Ideal for most harsh chemicals, DI water, Bio-Medical, Pharmaceutical and other ultra-pure applications.
Type 1: spring operated pressure regulator.

Inlet Pressure                    0 to 150 PSIG

Air actuating Pressure            0 to 100 PSIG(Type 2 only)

Regulating Pressure		  10 to 100 PSIG
                                  (Regulated pressure must be
                                  specified when placing order)

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

Material     Valve Body           PVC
                                  Polypropylene
                                  PVDF
                                  TEFLON(PTFE and PFA)

	     Diaphragm           Virgin Teflon

O-Ring                            Kalrez(Standard)

Valve Ports              Flare Ends(PP.PVDF & PFA)*
                         Butt Fusion(PP,PVDF & PFA)*
                         * Apply to 1/2" Molded Body Only
                         FNPT (1/2"-1" Machined Body)
                         MNPT (1.5"-2.0" Machined Body)

Mounting Method          (2) 3/16" Self tapping screws
                         for 1/2" Molded Valve Only
                         (4) 1/4"-20 tapped holes for
                         std. machined valve body.

Valve types              Type1: Spring operated UPF
                         Type2: 1:1 ratio air operated UPF