1.25 975 RP FNTP OSY X FNPT OSY

Item Number: 114-975XLOSY
1 1
$3,487.50
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Size: 1.25 inch
  • End Connections: FNPT OSY x FNPT OSY
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 180°F
  • Main Valve Body Material: Cast Bronze ASTM B 584
  • OS&Y Valve Shutoffs included
  • ASSE® Listed 1013, CUPC® Listed
  • Wye pattern design for easier installation and maintenance

Description

The Zurn Wilkins 975XLOSY Reduced Pressure Principle Backflow Preventer provides high health hazard protection for non-potable water systems. Designed to prevent backsiphonage and backpressure, this 1.25 inch assembly features a durable cast bronze body and comes with OS&Y valve shutoffs. Its wye pattern design allows for easier installation in compact spaces and provides simple access to internal components, reducing maintenance time and costs. It is ASSE® Listed 1013, CUPC® Listed, and rated for 175 PSI maximum working pressure and 180°F working temperature. Item number 114-975XLOSY.

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Connections

  • This 1.25 inch Reduced Pressure Principle Backflow Preventer comes with Female NPT (National Pipe Tapered) threaded end connections for both inlet and outlet.
  • The integral OS&Y (Outside Stem & Yoke) shutoff valves are designed to connect directly to 1.25 inch male NPT threaded piping.

Installation Environment

  • Designed for permanent installation on horizontal water lines.
  • Requires a minimum of 12 inches (305mm) and a maximum of 30 inches (762mm) clearance above adequate drains to allow for testing and maintenance.
  • Ensure the installation location provides sufficient side clearance and prevents submersion of the unit.
  • For indoor installations, an air gap adapter must be supplied.
  • Always adhere to local plumbing codes and manufacturer's instructions for proper installation.
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Additional Details

The Zurn Wilkins 975XLOSY Reduced Pressure Principle Backflow Preventer is designed for installation on water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply, providing high health hazard protection for non-potable applications.

This assembly comes with OS&Y valve shutoffs and features a wye pattern design for easier installation in compact spaces and reduced labor during maintenance.

Application

  • Designed to prevent backsiphonage and backpressure of contaminated water into potable water supplies.
  • Provides protection where a potential health hazard exists.
  • For non-potable applications only.

Materials

  • Main valve body: Cast Bronze ASTM B 584
  • Access covers: Cast Bronze ASTM B 584
  • Fasteners: Stainless Steel, 300 Series
  • Elastomers: Silicone and Buna Nitrile
  • Polymers: Noryl™
  • Springs: Stainless Steel, 300 series

Features

  • Wye pattern design reduces installation time and costs.
  • Easy access to the first check for debris removal, reducing maintenance costs.
  • Entire unit is serviceable in line without removing the relief valve or the entire device from the line.
  • Supplied with full port ball valves (standard), or OS&Y valves as specified.

Installation Guidelines

  • Local codes govern installation requirements.
  • Mount assembly at a minimum of 12 inches (305mm) and a maximum of 30 inches (762mm) above adequate drains with sufficient side clearance for testing and maintenance.
  • Ensure no part of the unit can be submerged.
  • For indoor installations, the unit must be supplied with an air gap adapter.

Specifications

  • Product Type: Reduced Pressure Principle Backflow Preventer
  • Model: 975XLOSY
  • Size: 1.25 inch
  • End Connections: FNPT OSY x FNPT OSY
  • Main Valve Body Material: Cast Bronze ASTM B 584
  • Access Covers Material: Cast Bronze ASTM B 584
  • Fasteners Material: Stainless Steel, 300 Series
  • Elastomers Material: Silicone, Buna Nitrile
  • Polymers Material: Noryl™
  • Springs Material: Stainless Steel, 300 Series
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 180°F
  • Hydrostatic Test Pressure: 350 PSI

Certificates & Approvals

  • ASSE® Listed 1013
  • CUPC® Listed
  • UL® Classified (with OS&Y valves)
  • C-UL® Classified
  • CSA B64.4 Certified
  • AWWA compliant C511
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • NYC MEA 425-89-M VOL 3
  • IAPMO® Listed

FAQs

What is the primary application of the Zurn Wilkins 975XLOSY Backflow Preventer?

This backflow preventer is designed for installation on water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. It is specifically for non-potable applications where a potential health hazard exists.

What type of shutoff valves are included with this model?

The Zurn Wilkins 975XLOSY model is furnished with OS&Y (Outside Stem & Yoke) valve shutoffs.

What materials are used in the construction of the 975XLOSY?

The main valve body and access covers are made of Cast Bronze ASTM B 584. Fasteners and springs are Stainless Steel, 300 Series, while elastomers are Silicone and Buna Nitrile, and polymers are Noryl™.

What are the maximum operating pressure and temperature for this device?

The Zurn Wilkins 975XLOSY has a maximum working water pressure of 175 PSI and a maximum working water temperature of 180°F.

What are the installation requirements for the 975XLOSY?

The assembly must be mounted at a minimum of 12 inches (305mm) and a maximum of 30 inches (762mm) above adequate drains with sufficient side clearance. No part of the unit can be submerged, and local codes must be followed.

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