Piston Lift Type Check Valve
Product Introduction Product DescriptionThe lift check valve is a check valve in which the disc moves up and down along the axis of the sealing surface of the disc.This type of valve is typical in applications requiring high-pressure service. Effective with a high-velocity flow, lift check valves ca
Product Introduction
Product Description
The lift check valve is a check valve in which the disc moves up and down along the axis of the sealing surface of the disc.
This type of valve is typical in applications requiring high-pressure service. Effective with a high-velocity flow, lift check valves can be installed either horizontally or vertically (in pipelines with an upward flow). Types of lift check valve include piston type and ball type. This type of valve can prove more leak resistant.
The structure of the lift check valve has many similarities with the globe valve, in which the valve body is exactly the same as that of the globe valve and can be used universally. The form of the valve disc is also similar to that of the globe valve. The upper part of the valve disc and the lower part of the valve cover are provided with a set of guide shafts and sleeves. The purpose of using the guide sleeve is to ensure that the valve disc returns to the valve seat accurately. A pressure relief hole is machined on the upper part of the guide sleeve of the valve cover. When the valve disc rises, the medium in the sleeve is discharged to reduce the resistance of the valve disc when it is opened. The lift check valve is reliable in action, but has a large flow resistance, and is suitable for occasions with small diameters.
Features
1. Increased uptime due to the elimination of misalignment and wear due to the use of thrust rings in the body-guided disc
2. Greater process control due to hard-surface integral seat for reliable shutoff and increased seat life
3. Improve service integrity by minimizing flow direction changes and pressure drop through optimal streamline shape.
4.Reduce operating costs with a molded flexible graphite gasket that installs to specified bonnet torque and provides a reliable seal.
Advantages
The main advantage of the lift check valve is its simple structure, since the conical disc is the only moving part, the valve is strong and durable, requiring little maintenance, and due to the metal seat, there is very little wear. The limitation of lift check valves is that they must be installed on horizontal pipes.
The piston lift check valve is improved from the standard lift check valve, including a piston-shaped disc and a damping device. The damping device produces damping during operation, eliminating the damage caused by frequent valve movements, such as, in piping systems that are subject to water shock pressure, or where the direction of the fluid changes frequently (such as the boiler outlet).
Application
Lift check valve with metal-to-metal sealing pair, allowing a small amount of leakage Backflow is also used for the outlet of the condensate circulating pump.
Product Overview - XURI Valve
This Swing type check valve prevents reverse flow in piping systems. Available in carbon steel, stainless steel, and alloy materials. Class 150-2500, sizes 1"-36". API 594 compliant. Suitable for oil & gas, petrochemical, water treatment, and power plant applications.
Factory direct check valve supplier, OEM/ODM available for custom sizes and materials. ISO 9001 certified, API 594 compliant, fast delivery worldwide.
Product Features
1. Increased uptime due to the elimination of misalignment and wear due to the use of thrust rings in the body-guided disc. 2. Greater process control due to hard-surface integral seat for reliable shutoff and increased seat life. 3. Improve service integrity by minimizing flow direction changes and pressure drop through optimal streamline shape.4. Reduce operating costs with a molded flexible graphite gasket that installs to specified bonnet torque and provides a reliable seal. Advantages The main advantage of the lift check valve is its simple structure, since the conical disc is the only moving part, the valve is strong and durable, requiring little maintenance, and due to the metal seat, there is very little wear. The limitation of lift check valves is that they must be installed on horizontal pipes. The piston lift check valve is improved from the standard lift check valve, including a piston-shaped disc and a damping device. The damping device produces damping during operation, eliminating the damage caused by frequent valve movements, such as, in piping systems that are subject to water shock pressure, or where the direction of the fluid changes frequently (such as the boiler outlet). Application Lift check valve with metal-to-metal sealing pair, allowing a small amount of leakage Backflow is also used for the outlet of the condensate circulating pump.
Available Configurations
- Sizes: DN15 - DN600 (1/2" - 24")
- Pressure Ratings: Class 150 - Class 2500 (PN16 - PN420)
- Body Materials: WCB, WCC, LCB, LCC, WC6, WC9, CF8, CF8M, CF3, CF3M, Duplex SS
- End Connections: Flanged (RF, RTJ), Butt Weld, Socket Weld, Threaded, Wafer, Lug
- Disc Types: Swing Check, Lift Check, Dual Plate, Tilting Disc, Piston Check, Ball Check, Nozzle Check
- Seat Materials: Metal Seat, Soft Seat (PTFE, PEEK, Nylon)
- Standards: API 602, ASME B16.34, BS 1868, API 6D
Specifications
| 压力等级 (Pressure Rating) | PN16 ~ PN420 / Class 150 ~ 2500 |
|---|---|
| 阀体材质 (Body Material) | Carbon & Alloy Steel (WCB, WC6, WC9, A105) |
| 适用介质 (Applicable Media) | Water, Oil, Gas, Steam |
| 连接方式 (End Connection) | Flanged / Threaded / Welded |
| 驱动方式 (Operation Type) | Manual / Automatic |
| 应用领域 (Applications) | Petroleum, Chemical, Power |
