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The Wilkins 34-BVECXL-125-PEX is a full port bronze ball valve with integral thermal expansion control, 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
• Connection Type: FNPT, 1/2" Crimp PEX

Other Related Variants:

• 34-BVECXL-125BF: 3/4 Inches with 3/8" hose barb drain
• 34-BVECXL-125CF: 3/4 Inches with 3/8" compression drain
• 34-BVECXLC-125BF: 3/4 Inches copper sweat, barb drain
• 34-BVECXLC-125CF: 3/4 Inches copper sweat, compression drain
• 34-BVECXLPEX-125BF: 3/4 Inches PEX, barb drain

Materials:

• Valve Body: Low Lead Cast Bronze (ASTM B 584)
• Relief Valve Body: Low Lead Forged Brass
• Ball: Chrome Plated Low Lead Brass
• Stem: Brass (ASTM B 16)
• Seats and Stem Packing: Virgin Teflon
• Thrust Washer: 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) and Screw

Typical Installation:

The Zurn 34-BVECXL-125-PEX is installed on the cold water inlet to residential water heaters, providing both shutoff capability and thermal expansion relief. It requires a safe, adequate drain line from the relief valve outlet and should be installed with sufficient clearance for handle operation and drain line maintenance.

Standards Compliance:

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

Features & Benefits:

• Dual Protection: Combines full port ball valve shutoff with 125 psi thermal expansion relief in a single compact unit.
• Lead-Free Compliance: Certified to NSF/ANSI 372 with 0.25% maximum weighted average lead content for safe drinking water applications.
• Durable Construction: Low lead bronze and brass materials with stainless steel components ensure long-lasting performance and corrosion resistance.
• Easy Installation: Integral design with FNPT threads and 1/2" crimp PEX drain connection simplifies water heater installations.

FAQ

Q: What pressure setting does the Zurn 34-BVECXL-125-PEX have and can it be adjusted?

A: The unit has a factory-set 125 psi relief setting. The relief setting is not adjustable, but replacement relief valves with different pressure settings (80 psi or 100 psi) are available as accessories.

Q: Where should the drain line from the relief valve be routed?

A: The drain line must be routed to a safe, adequate drain location that can handle thermal expansion discharge. Ensure the drain line is properly supported and termination meets local plumbing codes.

Q: Is the Wilkins 34-BVECXL-125-PEX suitable for both new installations and replacement applications?

A: Yes, this valve is ideal for both new water heater installations and replacement applications where a combined shutoff and thermal expansion relief valve is required, particularly in areas requiring lead-free valves.

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