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Used to eliminate excessive pump head pressure when most radiator valves are closed due to reduced demand.
  • Install between supply and return sides of a hydronic system to stabilize pressure differential and reduce the effects of demand changes.
  • Control maintains a constant differential between the two sides by opening a bypass whenever the difference between supply and return reaches the setpoint.
  • Provides silent, trouble-free service.
  • Easy installation; requires no electrical hookup.
  • Easy adjustment of pressure by turning regulating cap.
  • Built-in differential pressure indicator.
  • Brass valve body with thermoplastic and stainless steel parts.
  • Diaphragm of EPDM.
  • Description: Differential Pressure Regulator, 3/4 in.
  • Pipe Size (inch): 1 1/4 in.
  • Pipe Size (DN): DN20
  • Pipe Connections: Angle type, female threaded NPT
  • Outlet Pressure Adjustment Range (psi): 0-17 psi
  • Max. Inlet Pressure Rating (psi): 85 Psi
  • Materials: Brass (body), Stainless steel and engineered thermoplastics. EPDM diaphragm.
  • Dimensions (in.): 6 1/4 in. high x 3 3/8 in. wide
  • Dimensions (mm): 160 mm high x 86 mm wide
  • Capacity: 395,000 Btu/hr
  • Capacity: 18 gpm
  • Temperature Range (F): 230 F
  • Temperature Range (C): 110 C
  • Includes: Built-in differential pressure indicator
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Manuals (1)


Outlet Type:


Inlet Type:


Pressure Range:

0 to 17 PSI

Min Pressure (PSI):


Max Pressure (PSI):






Max Inlet Pressure:

85 PSI

Temperature Range (F):


Connection Type:



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