10 Inch OS&Y Gate Valve With Rising Stem For Visual Position Indication

10 Inch OS&Y Gate Valve with Rising Stem for Visual Position Indication

10″ OS&Y valve is a type of gate valve that clearly indicates its open position through the external rising of the valve stem. Its nut and valve stem threads are located outside the valve body and stuffing box, making the on/off status instantly visible. This facilitates system safety inspections and daily management, and reduces the possibility of misoperation.

The valve body is commonly made of ductile iron or carbon steel, while internal components (such as the valve stem and gate plate) can be constructed from stainless steel to resist corrosion. Valves with a 10-inch nominal diameter typically adopt flange connection, ensuring a stable joint with large-diameter pipelines. The standard operation method is manual actuation via a handwheel, which meets regular opening and closing requirements.

A major feature of the 10″ OS&Y valve is its ease of maintenance. With key transmission components located externally, lubrication and condition checks can be carried out conveniently. Valves of this size usually comply with standards such as AWWA C509, with a common nominal pressure rating of Class 150 or a working pressure of 200 psi. They are suitable for medium and high-pressure fluid isolation scenarios such as municipal water supply and fire main lines.

Typical Specification Sheet for 10″ OS&Y Valve

When selecting a valve, in addition to pressure and nominal diameter, it is necessary to specify the fluid medium and temperature to choose the appropriate valve body and sealing materials. For the 10″ OS&Y valve, sufficient installation space must be provided to accommodate the full lifting height of the valve stem, which is a critical factor to consider during pipeline layout design.

Q: Do your 10″ OS&Y valves comply with internationally recognized standards such as AWWA or API? Can you provide certification documents?

• A: Yes, our products are manufactured in strict accordance with standards including AWWA C509 (for water works) or API 600 (for oil and gas applications). We can provide Material Test Reports (MTR) and Certificates of Conformity (CoC) along with the goods to meet the documentation requirements for your project bidding or acceptance procedures.

Q: For seawater or corrosive chemical media, what upgraded material options are available for the internal components of the 10″ OS&Y valve?

• A: For corrosive environments, we recommend upgrading standard internal components to higher-grade stainless steel, such as 316 stainless steel valve stems or 17-4PH precipitation-hardened stainless steel. Valve seats can also be made of Monel alloy or coated with Teflon. Please provide the specific composition and concentration of the medium, so that we can recommend the most cost-effective material solution.

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