NiAlBr Check Valve - Ball Check / Y-Check Flanged Class 150
Nickel Aluminium Bronze (NiAlBr) Check Valve available in Ball Check or Y-Check configurations with Flat Face Flanged connections, Class 150# rating. Designed for preventing backflow in highly corrosive applications including Sodium Hypochlorite, Seawater, and dilute Hydrochloric Acid (HCl 5%).
Process Fluids
Available Sizes: 1/2", 3/4", 1", 1-1/2", 2", 3", 4", 6"
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 |
Dimension Table - Class 150# Flanged (ASME B16.5)
Legend: L = Face-to-Face | D = Flange OD | D1 = Bore Diameter | b = Flange Thickness | n × d = Bolt Holes | H = Overall Height
Features & Benefits
Superior Corrosion Resistance
NiAlBr provides exceptional resistance to seawater, chlorides, and acidic environments, ensuring long service life in marine and chemical applications.
Reliable Backflow Prevention
Precision-machined seating surfaces ensure tight shut-off and reliable prevention of reverse flow in critical piping systems.
Low Pressure Drop
Streamlined flow path design minimizes pressure loss while maintaining effective check valve function.
Complete Traceability
Full material traceability with Mill Test Certificates (MTCs) and compliance documentation as per international standards.
Test Pressure Requirements
| Test Type | Pressure (Class 150) | Standard |
|---|---|---|
| Hydrostatic Shell Test | 450 PSI (31 bar) | API 598 |
| Hydrostatic Seat Test | 300 PSI (21 bar) | API 598 |
| Pneumatic Low Pressure Test | 80 PSI (5.5 bar) | API 598 |
Standards Compliance
Pipeline Valves
Valve Testing
Check Valves
Flange Dimensions
Valve Design
NiAlBr Material
Typical Applications
Marine & Offshore
Seawater cooling, ballast systems
Desalination Plants
Pump discharge, brine handling
Chemical Processing
Sodium hypochlorite, chlorine
Water Treatment
Chlorination, dosing systems
Technical Notes
- All dimensions are in millimeters unless otherwise specified
- Tolerance: ±3mm for standard dimensions
- Complete material traceability provided with Mill Test Certificates (MTCs)
- Valves tested as per API 598 and customer specifications
- All wetted parts are suitable for process fluids
- Both Ball Check and Y-Check configurations available
- Special materials, coatings, and certifications available on request