Drawing No: SV/BLV/NAB/PN16/1059
Nickel Aluminium Bronze 2PC Screwed End BSP Female x Female Ball Valve
Two-piece Nickel Aluminium Bronze ball valve with BSP female screwed ends. ASTM B148 C95800 construction with blow-out proof stem design. PN16 rated, lever operated. Ideal for marine, offshore, fire protection, and seawater applications.
Key Standards & Features
Available Sizes: 1/2", 1", 2" (DN15, DN25, DN50)
Technical Specifications
Valve Type
Ball Valve
Construction
Two Piece (2PC)
Design Standard
BS 5351
Testing Standard
API 598
Pressure Rating
PN16 (16 Bar)
End Connection
BSP Female x Female
Thread Standard
BSP (ISO 228-1)
End Connection Std
ASME B16.11
Stem Design
Blow-out Proof
Operation
Lever Operated
Seat Leakage Class
Class VI
Tolerance
±3mm
Material of Construction
Dimension Table
Test Pressure
Hydraulic - Seat
22 Kg/cm²
285 PSIG
Hydraulic - Shell
32 Kg/cm²
425 PSIG
Pneumatic
7 Kg/cm²
100 PSIG
Applications
Marine & Shipbuilding
Seawater systems, ballast, cooling
Fire Protection
Fire fighting systems, sprinklers
Offshore Oil & Gas
Platforms, FPSOs, subsea
Desalination
RO plants, brine handling
Frequently Asked Questions
What is a Nickel Aluminium Bronze (NAB) ball valve?
A Nickel Aluminium Bronze ball valve is made from ASTM B148 C95800 alloy, which offers exceptional corrosion resistance in seawater and marine environments. NAB valves are ideal for offshore platforms, shipbuilding, desalination plants, and fire protection systems.
What does 2PC construction mean in ball valves?
2PC (Two Piece) construction means the valve body consists of two parts - a center piece and an end connector. This design allows for easy maintenance and seat replacement without removing the valve from the pipeline.
What is a blow-out proof stem?
A blow-out proof stem design prevents the stem from being ejected from the valve body under pressure. The stem is retained by a shoulder that engages with the body, ensuring safety even if the stem packing fails.
What is PN16 pressure rating?
PN16 is a European pressure rating equivalent to 16 bar (232 PSI) at ambient temperature. It indicates the maximum allowable working pressure for the valve.
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