Threaded Piston Valves

Detailed Information About Threaded Piston Valves

Threaded piston valves are a type of piston-actuated valve designed for the safe and precise control of flow in lines operating under high temperature and pressure. Thanks to the dual-ring sealing structure, maintenance requirements are minimized, providing long-lasting performance in steam and hot fluids.

Operating Principle

The piston controls the flow by moving up and down between İtwo sealing rings within the valve body. Unlike conventional globe valves, this system reduces wear, offers stable operation even at high temperatures, and optimizes tightness. The threaded connection model provides an advantage in lines requiring compact installation and rapid application.

Key Advantages

• • Easy installation with threaded connection.
• • Use in confined spaces thanks to the compact body structure.
• • High performance in steam and hot water lines.
• • Dual-ring sealing structure.
• • Low maintenance requirements and long service life.
• • Suitable for throttling, isolation, and flow adjustment.

Material Specifications

• • Body: Cast iron, ductile iron, carbon steel, stainless steel
• • Piston: AISI 304 / 316 stainless steel
• • Sealing Rings: Graphite or PTFE composite
• • Stem: Stainless steel
• • Connection: Threaded (BSP – NPT options)

Application Areas

• • Steam lines
• • Hot water and superheated water systems
• • Thermal oil circuits
• • Medium and small-scale process systems
• • Food, chemical, and textile industries
• • Boiler rooms
• • Pressurized lines and control equipment

Performance Characteristics

Threaded piston valves are generally manufactured with:
• DN15 – DN50 diameter range
• PN16 – PN40 pressure class
• -10°C to +400°C temperature resistance
• Compatible with manual, electric, or pneumatic actuators.