Deringer 20X Low Head Loss Double Check Valve Assembly
4 in.
R 57,664.00
Sale price
R 57,664.00
Regular price
R 88,494.00
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Deringer 20X Low Head Loss Double Check Valve Assembly
R 57,664.00
Sale price
R 57,664.00
Regular price
R 88,494.00
Shipping calculated at checkout
The 20" Deringer Low Head Loss Double Check Valve Assembly is engineered for commercial, industrial, and municipal fire protection systems to prevent back-siphonage and contamination. Installed directly into system supply piping, this valve assembly features dual independent check barriers that maintain a safe, reliable water supply. Its low head loss design minimizes pressure drop across the valve, preserving critical sprinkler head pressure to support effective fire suppression during emergencies.
This assembly satisfies stringent code requirements, fulfilling compliance mandates for NFPA 13 and NFPA 25 installations. It is built to meet high safety benchmarks, holding listings and approvals including UL 1469 and FM Approval, while complying with ASSE 1015.
- Heavy-Duty Iron Body: Constructed from durable iron with a corrosion-resistant coating to withstand mechanical and environmental stress.
- Internal Components: Features stainless steel springs and fasteners for rust resistance alongside thermoplastic check modules.
- Sealing Performance: Utilizes reversible, replaceable EPDM elastomer seats for long-lasting sealing.
- Pressure Rating: Supports up to 175 PSI working pressure for demanding system demands.
- Connection Versatility: Accommodates ANSI B16.1 flanged and AWWA C606 grooved connections for varied piping layouts.
- Installation Options: Suitable for both horizontal and vertical upward flow mechanical layouts.
- Inspection Ready: Equipped with pre-drilled test cocks for annual inspections and differential pressure testing.
| Parameter | Specification |
|---|---|
| Manufacturer / Brand | Backflow Direct |
| Model / Series Number / SIN | Deringer 20X / Fig 20X |
| Connection / Thread Size & Type | ANSI B16.1 Flanged and AWWA C606 Grooved |
| Pressure Rating (WWP) | 175 PSI |
| K-Factor | N/A |
| Temperature Rating / Response Type | N/A |
| Material / Body Construction | Iron Body with Corrosion-Resistant Coating, Stainless Steel Springs/Fasteners, Thermoplastic Check Modules, EPDM Seats |
| Agency Listings & Approvals | UL Listed (UL 1469), FM Approved, ASSE 1015 Compliant |
| Applicable NFPA Standards | NFPA 13, NFPA 25 |
Verify local Authority Having Jurisdiction (AHJ) requirements and consult manufacturer technical data sheets before beginning installation.
Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)
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