NAB Ball Valve – API 6D for Seawater
Nickel Aluminium Bronze (NAB) ball valves manufactured to API 6D / BS 5351 standard for continuous seawater service. Body and ball in ASTM B148 C95800. 2-piece split body design. PTFE seats. Sizes from 1/2" to 6". Ideal for desalination, offshore, and marine applications.
Quick Summary
NAB Ball Valve = Ball valve with body and ball made from Nickel Aluminium Bronze (ASTM B148 C95800). 2-piece split body design per API 6D. PTFE soft seats. Used for seawater isolation. Available 1/2" to 6". Manual lever or gear operated. Applications: desalination, offshore platforms, marine vessels, seawater cooling.
In Stock
Seawater Rated
Key Specifications
Design Standard: API 6D / BS 5351
Pressure Rating: PN16 / Class 150
Body Material: ASTM B148 C95800
Ball Material: ASTM B148 C95800
Seat Material: PTFE
Size Range: 1/2" to 6"
Construction: 2-Piece Split Body
Leakage Class: Class VI (Zero)
Materials of Construction (MOC)
| Component | Material Specification |
|---|---|
| Body & Bonnet | Nickel Aluminum Bronze (ASTM B148 C95800) |
| Stem / Spindle | Monel 400 / K500 |
| Seat / Trim | NAB / PTFE / Viton |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | API 609 / API 600 / ASME B16.34 |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | Class 150 / Class 300 / PN16 |
Materials of Construction (MOC)
| Part Name | Material |
|---|---|
| Body & Bonnet | Cast Iron (IS 210 Gr. FG 200) |
| Stem / Spindle | Stainless Steel (AISI 410) |
| Seat / Trim | Bronze (IS 318 LTB 2) or SS 410 |
| Gland Packing | Graphite / PTFE (Application Dependent) |
| Handwheel / Actuator | Cast Iron / Steel / SG Iron |