The Wilkins TP220-5C-150C is a temperature and pressure relief valve designed for water heater protection with a 5-inch probe and 150 PSI pressure setting.

Key Specifications:

• Probe Size: 5 Inches
• Pressure Relief Setting: 150 PSI
• Temperature Relief Rating: 210°F
• Notable Certifications: ANSI Z21.22, ASME Section IV
• Connection Type: 3/4" MNPT Inlet, 3/4" FNPT Outlet

Other Related Variants:

• TP220-5C-125C: 125 PSI pressure setting
• TP1100AE-3C-150C: Extended body, 3" probe
• TP3000-5C-150C: 1" FNPT connections, higher capacity

Materials:

• Main valve body: Cast Brass or Bronze (ASTM B 584)
• Internals: Stainless Steel (300 Series)
• Internals: Brass (ASTM B 36 and B 16)
• Springs: Stainless Steel (ASTM A 313)
• Probe: Epoxy-coated copper tube (FDA approved)
• Seals: EP, Silicone

Typical Installation:

Local codes shall govern installation requirements. Unless otherwise specified, the relief valve shall be installed in accordance with manufacturer's instructions and the latest edition of the Uniform Plumbing Code. The valve is typically installed on hot water heaters with an adequate drain line terminating outside. Maximum 6 inches above water heater installation recommended.

Standards Compliance:

CSA Compliant to ANSI Z21.22/CSA 4.4; Certified to ASME Section IV by National Board

Features & Benefits:

• Dual Protection: Provides both temperature and pressure relief for comprehensive water heater safety against over-temperature and excessive pressure conditions.
• High Discharge Capacity: Delivers 205,000 BTU/hr (ANSI Z21.22) and 1,912,000 BTU/hr (ASME) discharge rates for reliable protection in demanding applications.
• Durable Construction: Features cast brass or bronze body with stainless steel internals and FDA-approved epoxy-coated copper probe for long-lasting performance.
• Certified Safety: Meets rigorous ANSI Z21.22/CSA 4.4 and ASME Section IV standards, certified by National Board for assured code compliance.

FAQ

Q: What is the difference between the Zurn TP220-5C-150C and the TP220-5C-125C model?

A: The primary difference is the pressure relief setting. The Zurn TP220-5C-150C relieves at 150 PSI while the TP220-5C-125C relieves at 125 PSI. Both feature a 5-inch probe and 210°F temperature relief.

Q: Where should the discharge drain line terminate?

A: The drain line must terminate outside in a safe location where discharge will not cause injury or property damage. Follow local plumbing codes and manufacturer's instructions for proper installation.

Q: Can this valve be used for steam service applications?

A: No, the TP220-5C-150C is designed exclusively for installation on water heating storage vessels and is not suitable for steam service applications.

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