The Wilkins 34UFMX34MM-700XL is a lead-free dual check valve designed for potable water systems, providing reliable backflow prevention against backsiphonage and backpressure.

Key Specifications:

• Size: 3/4 Inches
• Maximum Working Pressure: 175 PSI
• Maximum Working Temperature: 180°F
• Notable Certifications: ASSE 1024, CSA, NSF/ANSI/CAN 61
• End Connections: 3/4" FMTC inlet x 3/4" MMTC outlet

Other Related Variants:

• 114UFMX1UF-700XL: 1 1/4 Inches FMTC x 1 Inches FNPT union
• 12UFX12F-700XL: 1/2 Inches union version
• 14UFX14F-700XL: 1/4 Inches union version
• 1MX1UF-700XL: 1 Inches MNPT x 1 Inches FNPT union
• 1UFMX1F-700XL: 1 Inches FMTC x 1 Inches FNPT
• 1UFMX1M-700XL: 1 Inches FMTC x 1 Inches MNPT
• 1UFMX1MM-700XL: 1 Inches FMTC x 1 Inches MMTC
• 1UFMX1UF-700XL: 1 Inches FMTC x 1 Inches FNPT union
• 1UFMX34F-700XL: 1 Inches FMTC x 3/4 Inches FNPT
• 1UFMX34M-700XL: 1 Inches FMTC x 3/4 Inches MNPT
• 1UFMX34UF-700XL: 1 Inches FMTC x 3/4 Inches FNPT union
• 1UFX1F-700XL: 1 Inches FNPT union x 1 Inches FNPT
• 34MX34UF-700XL: 3/4 Inches MNPT x 3/4 Inches FNPT union
• 34UFMX34F-700XL: 3/4 Inches FMTC x 3/4 Inches FNPT
• 34UFMX34M-700XL: 3/4 Inches FMTC x 3/4 Inches MNPT
• 34UFX1MM-700XL: 3/4 Inches FNPT x 1 Inches MMTC
• 34UFX34F-700XL: 3/4 Inches FNPT union x 3/4 Inches FNPT
• 38UFX38F-700XL: 3/8 Inches union version

Materials:

• Low Lead Cast Bronze (ASTM B 584)
• Buna Nitrile Elastomers (FDA approved)
• Noryl Polymers (1/4"-1/2")
• Delrin Polymers (3/4"-1")
• Stainless Steel Springs (300 Series)

Typical Installation:

Local codes shall govern installation requirements. Unless otherwise specified, installation shall be in accordance with the manufacturer's instructions and the latest edition of the Uniform Plumbing Code. The installation shall be made so that no part of the unit can be submerged. Typical applications include indoor installations and meter setter installations on potable water lines.

Standards Compliance:

ASSE Listed 1024; CSA Certified; NSF/ANSI/CAN 61

Features & Benefits:

• Lead-Free Compliance: Meets 0.25% maximum weighted average lead content for safe potable water applications.
• Dual Backflow Protection: Protects against both backsiphonage and backpressure in potable water systems.
• Durable Construction: Low lead cast bronze body with corrosion-resistant stainless steel springs ensures long-lasting performance.
• Union Connection Design: Features female meter thread connection inlet with union for easy installation and maintenance.

FAQ

Q: What is the difference between FMTC and MMTC connections on the Zurn 34UFMX34MM-700XL?

A: FMTC is Female Meter Thread Connection (National Hose Straight Thread) for the inlet, while MMTC is Male Meter Thread Connection for the outlet, designed specifically for water meter installations.

Q: Can the Zurn Wilkins Model 34UFMX34MM-700XL be installed in any flow direction?

A: Yes, all Model 700XL configurations are reversible, but installation must follow the marked direction of flow and ensure no part of the unit can be submerged.

Q: What size water meter requires 3/4 Inches meter thread connections?

A: When ordering with meter thread connections, order one size larger than the water meter. For a 1/2" or 5/8" water meter, use 3/4" meter thread connections.

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