The Spirax Sarco M10HP is a three-piece ball valve for shut-off and isolation in industrial high-pressure gas pipelines. It is available in sizes from DN 1/4 to DN2, with full-bore or reduced-bore configurations and a range of threaded and welded connections. The floating 316L stainless steel ball is surface hardened, and the maximum allowable working pressure is up to 300 bar g, depending on the specification. It is suitable for isolation duties in high-pressure gas systems.
M10HP high-pressure three-piece gas ball valve, 3/4 in. | Spirax Sarco
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M10HP High-Pressure Gas Three-Piece Ball Valve | Spirax Sarco
Three-piece ball valve for shut-off and isolation in industrial high-pressure gas pipelines, available in full-bore or reduced-bore configurations.
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Specifications
- Valve construction
- Three-piece ball valve, floating ball, blowout-proof stem
- Bore type
- Full bore (FB) or reduced bore (RB)
- Connection types
- BSP, BSPT, NPT, socket weld (SW), butt weld (BW)
- Connection sizes
- 1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2" (2" available with reduced bore only)
- Leakage class
- EN 12266-1 Class A / ISO 5208 Class A
- Design standards
- ANSI B16.11, ANSI B1.2.1, ANSI B16.34
- Maximum allowable working pressure
- 300 bar g (1/4", 3/8", 1/2" RB); 250 bar g (1/2" FB, 3/4", 1" RB); 180 bar g (1" FB, 1 1/4", 1 1/2", 2" RB)
- Operating temperature range
- -29°C to 80°C at 210 bar g
- Maximum allowable temperature
- 80°C
- Design cold hydraulic test pressure
- 1.5 x MOP
- Body material
- Zinc-plated carbon steel ASTM A105 (M10HP2) or stainless steel ASTM A128 F316L (M10HP3)
- Ball material
- Ion-nitrided AISI 316L stainless steel
- Stem material
- AISI 316L stainless steel
- Seat material
- Diethylene glycol acetal
- Stem seal material
- Antistatic PTFE, PEEK
- Pressure equipment compliance
- Complies with the European Pressure Equipment Directive 97/23/EC; CE marking available
- Material certificates
- EN 10204 3.1 certificates available
Application scenarios
Shut-off and isolation in industrial high-pressure gas pipelines
Used for shut-off and isolation in industrial high-pressure gas pipelines. The M10HP series is specifically designed for high-pressure gas service and is available in multiple sizes and connection types. Depending on the size and full-bore or reduced-bore configuration, the maximum allowable working pressure can reach 300 bar g.
Selection points
Three-piece body construction
Uses a three-piece ball valve construction, making it suitable for high-pressure gas pipeline applications where ease of body disassembly and maintenance is an important selection consideration.
Ion-nitrided 316L ball
The ball is made of AISI 316L stainless steel with an ion-nitrided surface, providing a basis for selecting the ball material and surface treatment.
Selectable bore and connection configurations
Available in full-bore (FB) or reduced-bore (RB) configurations. Connection types include BSP, BSPT, NPT, socket weld and butt weld. The maximum allowable working pressure varies with size and bore configuration, so the bore, connection type and pressure rating must be checked together during selection.
Class A leakage control for high-pressure gas service
Designed for high-pressure gas pipeline applications, with leakage performance conforming to EN 12266-1 Class A and ISO 5208 Class A. Suitable for isolation service where specific valve leakage acceptance requirements apply.
Installation & maintenance notes
Remove the seats before welding
For valves with socket weld (SW) or butt weld (BW) connections, separate the end caps from the body and remove the acetal seats before welding the pipeline. This prevents welding heat from damaging the non-metallic seats and affecting sealing performance.
FAQ
How does the M10HP ball valve operate in high-pressure gas applications?
The M10HP is a three-piece ball valve with a floating ball and a blowout-proof stem design. It enables rapid opening and closing under high-pressure gas conditions and can be maintained without disassembling the valve body.
How should the model and size be selected?
The series is available in several sizes, with full-bore and reduced-bore options. The specific configuration is determined by the model suffix, FB or RB, and the required connection type, such as BSP, BSPT or NPT. The final configuration must be confirmed against the actual model and application conditions.
What are the key considerations for the ball valve materials and surface treatment?
The core component is an AISI 316L stainless steel ball with an ion-nitrided surface. The body can be zinc-plated carbon steel or stainless steel. The seat is made of diethylene glycol acetal, while the stem and seals use combinations of stainless steel, PTFE and PEEK.
What are the basic pressure and temperature limitations of the product?
The specific PMA and temperature range vary with size and bore configuration. The maximum allowable temperature is typically 80°C, and the minimum applicable temperature is -29°C. The design and testing comply with the relevant EN/ISO standards; verify the limits for the specific model where required.
What should be noted during installation and maintenance?
Refer to the installation and maintenance guide supplied with the product. The valve can be maintained without removing it from the pipeline. Spare parts include seats, stem seals and body cover gaskets. Specify the valve size and model when ordering.