Angle Seat Valve

Working Pressure

Angle seat valves typically support a working pressure range of 5 to 20 bar. When selecting a valve, it is essential to consider not only the media pressure (fluid or gas being controlled) but also the compressed air pressure in the pneumatic actuator circuit. Both affect the valve’s overall performance and actuation reliability.

Temperature and Sealing Materials

Angle seat valves are capable of withstanding operating temperatures up to 200 °C, particularly when equipped with PTFE (Teflon) seals. Other common sealing materials and their characteristics include:

• NBR (Nitrile Buna Rubber): Good for general-purpose use, but limited to lower temperature ranges (typically up to ~80 °C).

• FKM (Viton): Offers better chemical resistance and moderate high-temperature performance (up to ~150 °C).

• EPDM: Suitable for water and steam applications, with temperature tolerance up to ~130 °C, but limited chemical resistance.

The temperature and pressure ratings of the valve are also significantly influenced by the housing material used.

Housing Materials

Common valve body materials include:

• Stainless Steel (304/316): Offers superior corrosion resistance, mechanical strength, and is ideal for high-pressure or high-temperature applications.

• Bronze / Gunmetal: Good durability and corrosion resistance in water systems.

• Brass: Suitable for lower-pressure applications, cost-effective.

• Plastic: Lightweight and resistant to certain chemicals, but with limited temperature and pressure capability.