Shield SD-TDV50G Grooved Test and Drain Valve 1 1/2″ (40 mm)
The Shield SD-TDV50G Grooved Test and Drain Valve (1 1/2″ / 40 mm) is a multi-function forged brass ball valve engineered to combine testing and system draining capabilities within wet pipe fire protection arrays.
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Description
The Shield SD-TDV50G is an industrial-grade, single-handle test and drain ball valve assembly designed for permanent installation in wet pipe fire sprinkler systems. Forged from high-strength brass with a chrome-plated ball and resilient PTFE (TFM) seats, this 1 1/2-inch (40 mm) component replaces complex multi-valve bypass configurations. It features a three-position handle (Off, Test, Drain) that directs fluid to a tamper-resistant interior test orifice to simulate sprinkler activation, or opens fully for a high-volume system express drain. Compliant with NFPA 13, 13R, and 13D criteria, the valve body incorporates a built-in sight glass for seamless visual inspection of flow dynamics and is rated for a safe working pressure of up to 300 PSI.
Features
- Multi-Functional Space Saver: Compact, single-valve architecture merges the operational utilities of both an inspector’s test station and a primary drain line, saving space and installation labor.
- Tri-Position Operational Logic: Outfitted with a heavy-duty vinyl-gripped steel lever providing positive detent alignment for secure Off, calibrated flow Test, and unrestricted system Drain steps.
- Grooved Mechanical Connection: Features standard grooved ends for fast, reliable connection via mechanical couplings, eliminating the need for threading pipe ends or applying sealants.
- Integrated Inspection Window: Includes a rugged, pre-installed structural sight glass that lets maintenance technicians safely verify real-time line discharge and air clearing.
- Calibrated Internal Orifice: Integrated with an internal tamper-resistant flow orifice calibrated to match standard sprinkler K-factor discharging for highly accurate waterflow switch tests.
- Corrosion-Resistant Integrity: The combination of an ASTM C85700 forged brass body, chrome-plated internals, and low-friction TFM seats guarantees complete freedom from rust-binding over long idle intervals.
Specifications
- Brand: Shield
- Model: SD-TDV50G
- Valve Type: Single-Handle Tri-Position Test and Drain Valve
- Nominal Size: 1½ inches (40 mm)
- Connection Type: Groove x Groove (Complies with standard mechanical coupling dimensions)
- Maximum Working Pressure: 300 PSI (20.7 bar)
- Body Material: Forged Brass (ASTM C85700)
- Ball & Stem Material: Brass (Ball Chrome-Plated)
- Seat & Packing Material: Resilient TFM / PTFE
- Working Positions: Three (3) Positions: Off, Test (Orifice), Drain (Full Open)
- Visual Control: Integrated tamper-resistant sight glass
- System Compliance: NFPA 13, NFPA 13R, and NFPA 13D standards
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