Differential Pressure Regulator (63DPR / 64DPR Series) and Differential Back Pressure Regulator (53DBPR / 54DBPR)

  • These regulators are designed to maintain a constant differential pressure between the pressure on the discharge side of the regulator and the signal pressure loaded on the diaphragm.
  • Operation is similar to pressure / back pressure regulators but with two separate lines, i.e. one for the process fluid and other for the auxiliary fluid. 64DPR / 54DBPR series provides same flow capacity as 63DPR / 53 DBPR series, but with less offset in controlled pressure due to larger diaphragm.
Line Sizes: 1/4” TO 4” (DN8 to DN100) [Note: 1/4“ (DN8) & 3/8” (DN12) will have 1/2“ (DN15) body with reducer bushings]
Cv's: 0.0008 to 200
End Connections: ANSI Flanges (150# and 300#), DIN Flanges (PN10/16, PN25/40) and Threaded (FNPT, BSPT)
Body Materials: Ductile Iron, Bronze (only1/2” to 2”, i.e. DN15-DN50), Carbon Steel (A216WCB) and Stainless Steel (A351/CF8M)
Service: Steam, Water, Oil, Gas, Air and Chemicals
Shutoff Standard: ANSI Class IV
Options Available: Double bolting, Closing Cap for adjusting screw, Bleed Valve on spring housing, Separate double diaphragm to prevent mixing of fluids in case of ruptured diaphragm and High Pressure applications.