OPW 821 Solenoid Valve

The OPW 821 Solenoid Valve is designed to prevent accidental siphoning of aboveground storage tanks if a leak or break occurs in the fuel supply line. The 821 valve is a two-way, normally closed diaphragm valve that opens when energized to allow fuel to flow to the pump or dispenser. Available in female NPT threads.


The 82RV is designed to give thermal pressure relief to our 821 Series Solenoid Valve line. Made of all stainless steel construction with a Viton® seal, it is suitable for all petroleum products. The 82RV is precision set at the factory at 25 PSI (1.7 bar), and is field adjustable from 5 to 30 PSI (.34 to 2 bar).

Features & BenefitsOrdering SpecificationDownloads

Features of the 821 Solenoid Valve

  • Aluminum Body – Compatible with gasoline, diesel, kerosene, low grades ethanol/methanol, fuel oil, and jet fuels.
  • Strainer – A strainer with 100-mesh screen is recommended at the inlet.
  • Mount – Vertical
  • Explosion Proof Shell & Water-tight
  • Standard Operation – 120/60 volts AC
  • Thermal Expansion
  • Power Draw – 20 Watts @ 60Hz


  • Body: aluminum
  • Diaphragm: Viton®
  • Seals & Disc: Viton®
  • Springs: stainless steel
  • Rider Rings: Teflon®
  • Disc Holder: nylon
  • Core Guide: acetal, delrin
  • Core & Plugnut: stainless steel

Listings and Certifications

Ordering Specifications

Product #NPT SizeGeneral Purpose*CV FlowFluid Temp.Operating Pressure Differential (PSI)Operating Pressure Differential (BAR)WeightMounting Position
821-0075AC3/419AC5.112505003.42.751.25Any Position
821-0100AC125AC2112502501.75.252.38Upright & Vertical
821-0150AC1-1/238AC3512502501.77.253.29Upright & Vertical
821-0200AC251AC6012502501.77.253.29Upright & Vertical

*CV Flow: GPM @ 1 PSI Pressure Drop

OPW 82RV – Thermal Pressure Relief Valve

Operating Pressure 25 PSI, Stainless Steel Construction

Product #NPT SizeWeight

82RV-2505 Series Pressure Relief Valve Instruction Sheet Order Number: 200517


Product #ABCD