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The Wilkins 12-P1550XL-75 is a lead-free pressure relief valve designed for cold water service lines, providing protection against excessive pressure buildup in commercial and industrial applications.

Key Specifications:

• Size: 1/2 Inches
• Pressure Relief Setting: 75 psi
• Maximum Working Pressure: 175 psi
• Maximum Working Temperature: 210°F
• Notable Certifications: NSF/ANSI 372

Other Related Variants:

• 12-P1550XL-125: 1/2 Inch, 125 psi relief setting
• 34-P1550XL-75: 3/4 Inch, 75 psi relief setting
• 34-P1550XL-125: 3/4 Inch, 125 psi relief setting

Materials:

• Main Valve Body: Low Lead Cast Bronze
• Access Covers: Brass
• Internals: Stainless Steel
• Internals: Brass
• Elastomers: Silicone
• Elastomers: Buna Nitrile
• Springs: Stainless Steel

Typical Installation:

Local codes shall govern installation requirements. Assembly shall be mounted in accordance with the manufacturers' instructions and the latest edition of the Uniform Plumbing Code. Assembly shall be installed with adequate drain and sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged or where relief valve discharge could cause damage. Suitable for pump pressure relief applications on cold water storage tanks and low capacity pumps.

Standards Compliance:

NSF/ANSI 372 (0.25% Max Weighted Average Lead Content) by IAPMO R&T

Features & Benefits:

• Lead-Free Compliance: Certified to NSF/ANSI 372 with 0.25% maximum weighted average lead content, meeting safe drinking water standards.
• Durable Construction: Low lead cast bronze body with stainless steel internals ensures long-lasting performance in commercial and industrial applications.
• Pressure Protection: Factory-set 75 psi relief setting protects plumbing systems from excessive pressure buildup on cold water service lines.
• Versatile Applications: Ideal for static relief, low capacity pump relief, passive solar systems, and cold water storage tank applications.

FAQ

Q: What is the maximum working pressure and temperature for the Zurn 12-P1550XL-75?

A: The maximum working water pressure is 175 psi and the maximum working water temperature is 210°F.

Q: What type of thread connections does this Wilkins 12-P1550XL-75 valve have?

A: The valve features ANSI B1.20.1 threaded connections with a Male NPT inlet and Female NPT outlet.

Q: Can the Zurn 12-P1550XL-75 be used for temperature relief applications?

A: No, this device is for pressure relief only and should be used in conjunction with other temperature limiting devices when temperature protection is required.

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