B148 C95800 Angle Pattern Globe Valve
Description
TECHNICAL DATA SHEET
Product Name: DN40 PN32 C95800 NPT Angle Pattern Globe Valve
Model / Type: [Insert Model Number Here, e.g., J45W-32R]
1. Product Description
This is a DN40 (1½ inch), PN32 rated angle pattern globe valve constructed from ASTM B148 C95800 Nickel Aluminum Bronze. Designed for stringent marine and offshore applications, this valve provides excellent resistance to seawater corrosion, cavitation, and erosion . The angle pattern design (90-degree flow turn) reduces pressure drop and minimizes erosion compared to traditional T-pattern globe valves, making it ideal for high-pressure throttling and isolation in seawater, brine, and hydrocarbon services .
2. Key Features
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Material – C95800 Nickel Aluminum Bronze: High-strength copper-based alloy with exceptional corrosion resistance in seawater and saline environments. Contains aluminum (8.5-9.5%), nickel (4-5%), and iron (3.5-4.5%) for enhanced mechanical properties .
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Angle Pattern Design: 90° flow path reduces fluid turbulence and valve erosion, suitable for high-pressure drop applications and systems with space constraints .
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Pressure Class: Rated to PN32 (32 bar), suitable for medium-pressure marine and industrial systems .
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End Connections: Female NPT threaded ends per ASME B1.20.1, providing reliable, leak-free connections .
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Metal-to-Metal Seating: Hardened trim (ball and seat) ensures long service life in erosive and high-temperature conditions.
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Rising Stem / OS&Y Design: Visual indication of valve position and reduced packing wear .
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Anti-Galling Properties: C95800 exhibits excellent resistance to galling and seizing, critical for threaded components and seating surfaces .
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Nominal Size | DN40 (1½ inch) |
| Pressure Rating | PN32 (32 bar / 464 PSI) |
| Working Pressure | 32 bar @ 38°C (100°F) Refer to pressure-temperature chart |
| Temperature Range | -29°C to 260°C (-20°F to 500°F) |
| Body Type | Angle Pattern (90° flow turn) |
| End Connections | Female NPT Threads (ASME B1.20.1) |
| Operation | Handwheel (Standard) |
| Stem Type | Rising Stem / Outside Screw and Yoke (OS&Y) |
| Flow Direction | Flow normally “under” the seat (refer to body arrow) |
4. Material of Construction
| Part Name | Material / Standard |
|---|---|
| Body | ASTM B148 C95800 Nickel Aluminum Bronze |
| Bonnet | ASTM B148 C95800 Nickel Aluminum Bronze |
| Disc (Valve Plug) | ASTM B148 C95800 / ASTM B150 C63000 (Hardened) |
| Seat Ring | ASTM B148 C95800 / Integral (Hardened) |
| Stem | ASTM B150 C63200 / AISI 316 Stainless Steel (Nickel Aluminum Bronze / SS) |
| Packing | PTFE / Graphite (depending on temperature) |
| Gasket | PTFE / Spiral Wound (Graphite filled) |
| Bonnet Bolting | Silicon Bronze / Stainless Steel (ASTM A193 B8) |
| Handwheel | Ductile Iron / Aluminum Bronze |
Chemical Composition of C95800 (ASTM B148):
| Element | Copper (Cu) | Aluminum (Al) | Nickel (Ni) | Iron (Fe) | Manganese (Mn) |
|---|---|---|---|---|---|
| % | 79.0 – 82.0 | 8.5 – 9.5 | 4.0 – 5.0 | 3.5 – 4.5 | 0.8 – 1.5 |
Mechanical Properties of C95800 (Typical):
| Property | Value |
|---|---|
| Tensile Strength | 585 – 760 MPa |
| Yield Strength | 240 – 345 MPa |
| Elongation | 12 – 20% |
| Hardness (Brinell) | 160 – 190 HB |
5. Applicable Standards
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Design & Manufacture: ASME B16.34, BS 1873, BS 5352 (for forged steel equivalents)
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Material Specification: ASTM B148 (C95800)
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End Connections: ASME B1.20.1 (NPT Threads)
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Face-to-Face Dimensions: Manufacturer’s Standard (Angle pattern)
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Testing & Inspection: API 598 / EN 12266-1
6. Dimensions (Reference: mm / inches)
Dimensions are typical for a DN40 PN32 angle pattern globe valve. For exact dimensions, please refer to manufacturer’s certified drawing.
| Size (DN) | L (Face-to-Face) mm | H (Open Height) mm | W (Handwheel Dia.) mm | Weight (approx. kg) |
|---|---|---|---|---|
| DN40 (1½”) | 90 – 110 mm | 160 – 180 mm | 120 – 140 mm | 3.5 – 4.5 kg |
NPT Thread Details (ASME B1.20.1):
| Size (NPS) | Threads per Inch (TPI) | Length of Thread (Min. Hand-tight) |
|---|---|---|
| 1½” | 11.5 | 18.5 mm |
7. Test Pressure (Hydrostatic – Per API 598 / EN 12266-1)
| Test Procedure | Pressure (Bar) | Pressure (PSI) |
|---|---|---|
| Shell (Body) Test | 48 Bar (1.5 x PN) | 696 PSI |
| Seat (High Pressure) Test | 35 Bar (1.1 x PN) | 508 PSI |
| Back Seat Test | 35 Bar | 508 PSI |
| Low Pressure Seat Test (Air) | 5.6 Bar | 80 PSI |
8. Available Options
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Trim Hardfacing: Stellite #6 on seat and disc for enhanced wear resistance .
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Special Trim: Monel / Inconel trim available for extreme conditions.
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Packing Material: Graphite packing for high-temperature service (>260°C) .
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Actuation: Pneumatic or electric actuator mounting kits available.
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Certification: EN 10204 3.1 material certification available upon request.
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Disclaimer: The information provided above is based on standard industry practices. For physical specifications and custom configurations, please refer to the official drawings or consult the factory. It is recommended to verify material compatibility for specific media and operating conditions.
Note on C95800: This Nickel Aluminum Bronze alloy offers superior corrosion resistance in seawater and brackish environments, often serving as a cost-effective alternative to duplex stainless steels and Monel in marine applications . The material exhibits excellent resistance to cavitation, erosion, and bio-fouling, making it ideal for naval, offshore, and desalination plant applications .
