The Wilkins TP1100A-4C-150C is a temperature and pressure relief valve engineered for water heating storage vessels, providing critical protection against over-temperature and excessive pressure conditions.

Key Specifications:

• Probe Size: 4 Inches
• Pressure Relief Setting: 150 PSI
• Temperature Relief Rating: 210°F Maximum
• Notable Certifications: ASME Section IV; CSA
• End Connections: 3/4 MNPT Inlet, 3/4 FNPT Outlet

Other Related Variants:

• TP1100A-4C-175C: 175 PSI pressure relief setting
• TP1100A-4C-75C: 75 PSI pressure relief setting

Materials:

• Cast Brass or Bronze body (ASTM B 584)
• Stainless Steel internals (300 Series)
• Brass components (ASTM B 36 and B 16)
• Stainless Steel springs (ASTM A 313)
• Epoxy coated copper tube probe (FDA approved)
• EP and Silicone seals

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 designed for installation on hot water heaters with drain lines terminating outside, and should be installed within 6 inches maximum from the heater where temperature and pressure relief is required.

Standards Compliance:

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

Features & Benefits:

• Dual Protection System: Provides both temperature and pressure relief protection for comprehensive safety against over-temperature conditions up to 210°F and excessive pressure up to 150 PSI.
• High Discharge Capacity: Rated for 105,000 BTU/hr relief capacity and up to 500,000 BTU/hr discharge capacity, ensuring adequate protection for residential and commercial water heating applications.
• Durable Construction: Features cast brass or bronze body with stainless steel internals and FDA-approved epoxy-coated copper probe for long-lasting reliability and corrosion resistance.
• Code Compliant Design: ASME Section IV certified and CSA compliant, meeting stringent industry standards for safe operation on non-steam water heating storage vessels.

FAQ

Q: What is the difference between the Zurn TP1100A-4C-150C and other TP1100A models?

A: The Zurn TP1100A-4C-150C features a 4-inch probe length and 150 PSI pressure relief setting. Other variants include different probe lengths (2", 3", 5", 8") and pressure settings (75, 125, 175 PSI) to accommodate various tank sizes and application requirements.

Q: Can this valve be used for steam applications?

A: No, this valve is specifically designed for non-steam water heating applications only. It is intended for use on water heating storage vessels, not steam service.

Q: What are the connection requirements for installation?

A: The valve features a 3/4 inch MNPT inlet connection and 3/4 inch FNPT outlet connection. Installation must be performed according to local codes, manufacturer's instructions, and the latest edition of the Uniform Plumbing Code, with drain lines properly terminating outside.

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