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Watts 3/4 LF530C (0556036) Lead Free Brass Adjustable Pressure Relief Valve - 300 PSI, 3/4 MNPT Inch Inlet, 1/2 Inch FNPT Outlet

Mfr. Model #:
3/4 LF530C (0556036)
KR Part #:
0.40 lbs
Usually Ships in 2 Weeks
Now Only!
A water pressure regulator with 3/4-inch male threaded NPT inlet port and a 1/2-inch female threaded outlet port. Made with lead free brass. Tolerates a maximum pressure of 300 PSI.

Technical Specifications

Max PSI: 300
Inlet Port: 3/4 inch
Outlet Port: 1/2 inch
Min PSI: 30

Product Description

Adjustable Pressure Relief Valve

This pressure regulator is engineered for applications in systems handling air, oil or water. Manufactured with a lead-free brass body with an adjustable stainless-steel spring. Equipped with a 3/8-inch male threaded NPT inlet and an outlet port with female NPT threads measuring 1/2 an inch. Features the ability to adjust the amount of pressure tolerance from 100 to a maximum of 300 PSI.


  • Body Material: Lead Free Brass
  • Brand: Watts
  • Buy American Act Compliant: YES
  • EAN: 098268435207
  • GPM-When Relieved: Does Not Apply to Product
  • Inlet Connection Size: 3/4 IN
  • Inlet Connection Type: Male Threaded
  • Inlet Thread Type: NPT
  • Lead Free: YES
  • Maximum Temperature-Fahrenheit: 180
  • Maximum Working Pressure-PSI: 300
  • Outlet Connection Size: 1/2 IN
  • Outlet Connection Type: Female Threaded
  • Outlet Thread Type: NPT
  • Part Number: 0556036
  • Pressure Range: 50 to 175 PSI
  • Pressure Relief Setting-PSI: 150
  • Pressure Steam Discharge Capacity: Does Not Apply to Product
  • Protection Type: Pressure
  • Series: LF530C


  • Lead free brass body construction
  • Buna-N disc on machined body seat
  • Adjustable range 100 to 300 PSI
  • All stainless-steel adjustable spring

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