Flanged Wafer Check Valve
Product Introduction Product DescriptionCheck valve connected by flanges are collectively referred to as flange check valves. The check valve can be divided into four types: threaded connection, flange connection, welded connection and wafer connection. Flange connection is the most common connectio
Product Introduction
Product Description
Check valve connected by flanges are collectively referred to as flange check valves. The check valve can be divided into four types: threaded connection, flange connection, welded connection and wafer connection. Flange connection is the most common connection method.
The disc of the flange check valve is disc-shaped and rotates around the shaft of the valve seat channel. Because the channel in the valve is streamlined, the flow resistance is smaller than that of the butterfly check valve. It is suitable for low flow rate and poor flow. It is suitable for large-diameter occasions with frequent changes, but it is not suitable for pulsating flow, and its sealing performance is not as good as that of lifting type.
Flanged check valves are usually carbon steel or stainless steel bodies; discs and springs are cast stainless steel AISI 316. Sizes range from DN50 to DN1200. Pressure and temperature ranges are in accordance with API 598. Fluids for the retention of aqueous media, oil and natural gas.
Product Range
Design standards: API 594, API 6D.
Testing and Inspection: API 598
Body material: carbon steel, stainless steel, alloy steel.
Normal diameter: 2″~48″ (DN50~DN1200)..
Terminations: Wafer, Lug, Clip, Flange
Pressure range: 150 lbs~2500 lbs (PN10~PN420).
Working temperature: -196℃~ +560℃.
Classification of flange check valves
According to the structure, the flange check valve is further divided into butterfly wafer check valve, flange vertical check valve and lift flange check valve.
The butterfly wafer check valve is divided into three types: single-valve type, double-valve type and multi-half type. These three types are mainly divided according to the valve diameter. The purpose is to prevent the medium from stopping or flowing backwards and weakening the hydraulic impact.
Flange check valve working principle
During the use of this valve, the medium flows in the direction of the arrow shown in the figure.
When the medium flows in the specified direction, the valve disc is opened by the force of the medium; when the medium flows backwards, the valve disc and the sealing surface of the valve seat are tightly closed due to the self-weight of the valve disc and the action of the reverse force of the medium by the valve disc. Close to prevent the reverse flow of the medium.
Product Overview - XURI Valve
This Flanged wafer 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.
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
| 公称通径 (Size/DN) | DN50 |
|---|---|
| 压力等级 (Pressure Rating) | PN10~PN420 |
| 阀体材质 (Body Material) | Stainless Steel (CF8, CF8M, 304, 316) |
| 适用介质 (Applicable Media) | Water, Oil, Gas, Steam |
| 连接方式 (End Connection) | Flanged / Threaded / Welded / Wafer / Lug |
| 驱动方式 (Operation Type) | Automatic / Hydraulic |
| 应用领域 (Applications) | Petroleum, Chemical, Power |
