3" Double Check Valve Assembly OSY Female X Gasket
R 63,231.00
Sale price
R 63,231.00
Regular price
R 79,292.00
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3" Double Check Valve Assembly OSY Female X Gasket
R 63,231.00
Sale price
R 63,231.00
Regular price
R 79,292.00
Shipping calculated at checkout
The 3" Double Check Valve Assembly with OS&Y Female x Gasket connection provides critical backflow prevention for commercial fire protection systems and industrial water lines. Installed within main supply assemblies, it blocks non-health hazard contaminants from entering the potable water supply, protecting water purity and maintaining system integrity. This assembly satisfies stringent municipal and life safety mandates, complying with AWWA C510 and ASSE 1015 standards for potable water and fire service applications.
The integrated Outside Screw and Yoke (OS&Y) gate valve design provides an immediate visual indication of valve position during mandatory inspections, supporting compliance with local fire codes and NFPA 13 and NFPA 25 installation requirements.
Key Features & Construction
- Body Construction: Fusion-bonded epoxy-coated ductile iron body resists mechanical stress and corrosion in mechanical rooms or underground vaults.
- Internal Components: 300-series stainless steel springs and fasteners maintain consistent operational integrity under demanding conditions.
- Check Modules: Glass-filled Noryl™ thermoplastic check modules deliver long-term wear resistance and dimensional stability.
- Valve Seals: Reversible, replaceable EPDM elastomer discs create a reliable watertight seal to streamline maintenance downtime.
- Visual Inspection: OS&Y gate valve mechanism clearly displays open and closed positions for rapid compliance verification.
- Flexible Orientation: Certified for both horizontal and vertical upward flow installations to accommodate complex facility layouts.
Technical Specifications & Compliance Table
| Specification | Details |
|---|---|
| Manufacturer / Brand | Zurn Wilkins |
| Model / Series Number / SIN | 3" Double Check Valve Assembly W/OS&Y FxG |
| Connection / Thread Size & Type | 3" OS&Y Female Threaded Inlet x Gasketed Outlet |
| Pressure Rating (WWP) | 175 PSI Continuous Working Pressure |
| K-Factor | N/A |
| Temperature Rating / Response Type | 33°F to 140°F |
| Material / Body Construction | Fusion-Bonded Epoxy-Coated Ductile Iron |
| Agency Listings & Approvals | UL Listed (UL 1469), FM Approved, ASSE 1015, AWWA C510 |
| Applicable NFPA Standards | NFPA 13, NFPA 25 (Fire Protection & Backflow Testing Standards) |
Verify local Authority Having Jurisdiction (AHJ) guidelines and consult manufacturer cut sheets prior to final installation and pressure testing.
Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)
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