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Hubbell Water Heaters

316L Stainless Steel T&P Relief Valve, Hubbell Water Heaters

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1.05 LBS


With an innovative spirit, Hubbell announces another game-changing product! The industry's first 316L stainless steel combination temperature and pressure (T&P) relief valve that’s ASME stamped, ANSI approved, CSA certified, and specifically designed for use in ultrapure RO/DI water heating systems.

In the past, options for T&P relief valves suited for use in RO/DI water heating systems were non-existent; until now! The majority of hot RO/DI systems in operation use a brass pressure-only relief valve that lacks temperature relieving capability, easily corrodes, may not meet ASME standards or local plumbing installation codes, and ultimately jeopardizes the integrity of the RO/DI system.

With this in mind, Hubbell is proud to introduce the only 316L stainless steel T&P relief valve with all 316L stainless steel metallic parts for improved safety of any hot RO/DI water heating system without compromising water purity or quality, adding years of worry-free service. Finally, you can specify and install a T&P relief valve designed for hot RO/DI water that eliminates any questions or concerns and adds no contaminants...a Pure winner!

PDF downloadsFeatures, Dimensions & Specifications

Valve Features

  • 316L Stainless Steel Construction
  • Corrosion resistant (indoor and outdoor applications)
  • Temperature sensing element relieves at 210°F
  • Pressure relief at 150 psi
  • ASME section IV, HV stamped
  • ANSI Z21.22 / CSA 4.4, CRN approved
  • Connection Inlet: 3/4" Male NPT
  • Outlet: 3/4" Female NPT
  • Relief Capacity
  • CSA: 205,000 BTU/Hr
  • ASME: 1,912,000 BTU/Hr
  • Relief Temperature: 210 Degrees Fahrenheit
  • Approvals:
    • ASM Section IV, HV Stamped
    • ANSI Z21.22-2015
    • CSA 4.4-2015
    • CRN CSA-0G1438.6C
  • Relief Pressure: 150 PSI
  • Body Material: 316L Stainless Steel
  • Spring Chamber: Aluminum (non-wetted surface)
  • Seat Disc: Silicone
  • Shipping Weight: 1.73 LBS


  • Hot RO/DI water systems for finishing and cleaning electronic and fabricated metal parts
    • PC boards, microchips, capacitors, pharmaceuticals, jewelry, aerospace, cosmetic & drug packaging systems, glass products
  • Ultrasonic cleaning systems 
  • Water purification systems
  • Foodservice and food production
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Additional Information

Material Type:
316L Stainless Steel
Product Type:
T&P Relief Valve
Category Type:
Weight (lbs):
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