B148 C95800 SDNR Angle Pattern Globe Valve

Description

Technical Data Sheet

BS Standard Angle Pattern Screw-Down Non-Return (SDNR) Globe Valve
Body Material: C95800 (Nickel Aluminium Bronze)

Product: Angle Pattern Screw-Down Non-Return (SDNR) Globe Valve
Valve Type: Angle Globe Pattern, 90-Degree Flow Path
Body Material: C95800 / BS EN 1982 CC333G (Nickel Aluminium Bronze)
Standard: BS 1873 / BS EN 60534-3-1 / BS EN 1092-2

1. Product Description

An Angle Pattern Screw-Down Non-Return (SDNR) Globe Valve combines isolation, flow control, and non-return functions in a compact 90-degree body configuration. The angle design directs flow at a right angle, reducing the number of pipe fittings required and minimizing pressure drop .

The “Screw-Down” feature allows manual closure by screwing the stem down to force the disc onto the seat. The “Non-Return” function enables the disc to act as a check valve when the stem is fully raised, automatically preventing backflow . The C95800 body material offers exceptional resistance to seawater corrosion, cavitation, and biofouling, making it ideal for marine and offshore applications .

2. Design & Inspection Standards (BS/EN)

3. C95800 Material Properties

C95800 (Nickel Aluminium Bronze) is a copper-aluminum-iron-nickel alloy with excellent mechanical and corrosion-resistant properties .

4. Technical Parameters (BS/EN Standards)

5. Material Specifications

6. Dimensional Data (BS/EN Standards)

*Reference dimensions based on BS EN IEC 60534-3-1 for angle pattern control valves . For angle pattern valves, “F” represents the center-to-face dimension (distance from inlet flange face to centerline of outlet). Flange dimensions per BS EN 1092-2.*

PN16 / PN40 Dimensions (Typical)

Class 150 / Class 300 Dimensions (Typical)
*For ASME B16.5 flange dimensions, refer to ASME B16.10 for face-to-face and ASME B16.5 for flange details.*

Note: Dimensions are typical and may vary by manufacturer. Certified drawings should be requested for final installation planning.

7. Design Features

1. Angle Pattern Design: The 90-degree body configuration eliminates the need for an additional elbow fitting, reducing installation costs and pressure drop .

2. Screw-Down Mechanism: The threaded stem allows manual closure of the valve independent of line pressure, providing positive shut-off when required .

3. Non-Return Function: When the stem is fully raised, the disc is free-floating and acts as a check valve, automatically closing when flow ceases or reverses to prevent backflow .

4. C95800 Aluminium Bronze Body: Exceptional resistance to seawater corrosion, cavitation, and biofouling; high strength and wear resistance; non-sparking for hazardous environments .

5. Guided Disc: The disc is guided by precision-machined surfaces in the body or bonnet, ensuring proper alignment during both manual closing and automatic check operation.

6. STL Hardfacing (Optional): Sealing faces can be overlayed with Stellite for enhanced wear and corrosion resistance, ensuring long service life in demanding applications.

7. Renewable Seat Ring: The seat ring is typically threaded or welded-in, allowing for field replacement without replacing the entire body.

8. Blow-Out Proof Stem: The stem is designed with an internal shoulder that prevents ejection under pressure.

9. BS/EN Compliance: Designed and manufactured to British and European standards, ensuring compatibility with UK, European, and Commonwealth pipeline systems.

8. Applications

• Marine & Shipbuilding: Seawater cooling systems, ballast systems, fire protection systems, bilge systems – where C95800’s excellent seawater corrosion resistance is essential .

• Offshore Platforms: Seawater injection systems, firewater systems, and utilities on offshore installations .

• Desalination Plants: High-salt brine and seawater handling in reverse osmosis and multi-stage flash desalination .

• Coastal Power Plants: Seawater cooling circuits and pump discharge lines .

• Chemical Processing: Suitable for handling corrosive media where standard materials would fail.

• LNG Facilities: Non-sparking safety feature makes C95800 ideal for hazardous areas .

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Important Notes:

• C95800 is equivalent to BS EN 1982 CC333G, ASTM B148 C95800, and ISO CuAl10Fe5Ni5 .

• For stem material, Monel K500 or Duplex Stainless Steel (2205) is recommended to prevent galvanic corrosion when used with C95800 body .

• Temperature range limited by seat material selection:

  • PTFE seats: -29°C to 120°C

  • RPTFE/PPL seats: Up to 150°C-200°C

  • Graphite/Stellite (metal seat): Up to 300°C

• For higher pressure classes (PN63/Class 600+) or larger sizes (above DN400/16″), consult the manufacturer.

• Certified dimensional drawings should be requested for final installation planning.