Yaxing Gate Valve with Rising Stem

1. What is a Gate Valve with Rising Stem

A Gate Valve with Rising Stem, also known as an Outside Screw and Yoke (OS&Y) Gate Valve, is a type of valve in which the stem rises and lowers along with the gate. During operation, the position of the stem clearly indicates whether the valve is open or closed. The key features:

● Intuitive operation – The rising stem position provides a visible indication, making management easier.

● Stable sealing performance – Reduces wear between the packing and the stem, extending service life.

2. Main Applications of Gate Valve with Rising Stem

● Municipal and Water Supply Systems – Ensures reliable opening and closing of water supply networks.

● Oil and Natural Gas – Withstands high pressure and temperature for long-distance pipeline operations.

● Power Generation and Industrial Production – Used in boilers, heat exchangers, and other high-temperature, high-pressure environments.

● Firefighting and Safety Systems – Works with flanged connections to ensure quick operation in emergencies.

3. Standards and Certifications for Gate Valve with Rising Stem

High-quality Gate Valves with Rising Stem generally comply with the following international standards:

● API 600 / API 602 – Design and manufacturing specifications for steel gate valves.

● ISO 5208 – Pressure testing standards for metallic valves.

● DIN EN 1074 – European standard for industrial gate valves.

4. Material Selection and Performance Differences for Gate Valve with Rising Stem

● Cast Iron Gate Valve with Rising Stem– Cost-effective; suitable for low- and medium-pressure water systems.

● Ductile Iron Gate Valve with Rising Stem– Higher strength and better toughness.

● Carbon Steel (WCB) Gate Valve with Rising Stem– Excellent high-temperature resistance; ideal for petrochemical applications.

● Stainless Steel (CF8/CF8M) Gate Valve with Rising Stem– Superior corrosion resistance; suitable for food, pharmaceutical, and other industries.

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