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The Wilkins 34-BVECXLC-125CF is a full port bronze ball valve with integral thermal expansion control valve designed for residential water heater protection.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Pressure: 400 psi WOG
• Maximum Working Temperature: 180°F
• Notable Certifications: UPC Listed, NSF/ANSI 372
• Relief Setting: 125 psi

Other Related Variants:

• 34-BVECXL-125CF: FNPT Shutoff Connection
• 34-BVECXL-125BF: FNPT Shutoff, Barb Drain
• 34-BVECXLC-125BF: Copper Sweat, Barb Drain
• 34-BVECXL-125-PEX: FNPT Shutoff, PEX Drain
• 34-BVECXLPEX-125BF: PEX Shutoff, Barb Drain
• 34-BVECXLPEX-125-PEX: PEX Shutoff, PEX Drain

Materials:

• Valve Body: Low Lead Forged Brass
• Relief Valve Body: Low Lead Forged Brass
• Ball: Chrome-Plated Low Lead Brass
• Stem: Brass (ASTM B 16)
• Seats and Stem Packing: TFE Virgin Teflon
• Thrust Washer: TFE Virgin Teflon
• Handle and Nut: Stainless Steel
• Relief Valve Spring: Stainless Steel (302 Series)
• Relief Valve Seat Washer: Buna Nitrile (FDA Approved)
• Relief Valve Plunger: Brass (ASTM B 16)

Typical Installation:

The Zurn 34-BVECXLC-125CF is installed on the cold water inlet to the water heater. Installation requires ensuring a safe, adequate drain line from the relief valve and providing clearance for handle operation and drain line maintenance. The valve should be installed with proper flow direction as indicated.

Standards Compliance:

UPC Listed to IGC 128-2019; Certified to NSF/ANSI 372 (0.25% Maximum Weighted Average Lead Content)

Features & Benefits:

• Dual Functionality: Combines ball valve shutoff with integral thermal expansion relief valve for complete water heater protection in one compact unit.
• Lead-Free Compliance: Meets NSF/ANSI 372 standards with 0.25% maximum weighted average lead content, ideal for potable water applications.
• Durable Construction: Features low lead forged brass body, chrome-plated brass ball, and stainless steel components for long-lasting performance.
• Versatile Connection Options: Copper sweat shutoff with 3/8" hose compression drain fitting for flexible installation configurations.

FAQ

Q: What is the purpose of the thermal expansion control valve?

A: The integral thermal expansion relief valve protects the water heater and plumbing system from excessive pressure buildup caused by thermal expansion when water is heated in a closed system.

Q: Can this valve be installed on hot water lines?

A: No, the Zurn 34-BVECXLC-125CF is designed for installation on the cold water inlet to the water heater only.

Q: What type of drain line is required for the relief valve?

A: A safe, adequate drain line must be connected to the 3/8" compression drain fitting and routed to an appropriate discharge location per local plumbing codes.

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