Cast Steel Wafer Ball Valve DN50 Price – Easy Installation, Space-Saving Design
Its unique wafer-style connection eliminates the need for conventional flange bolts passing through the valve body, dramatically reducing the valve's face-to-face dimension and overall weight. This article provides a 2026 price reference and outlines the key selection parameters for this space-saving valve.The main Ball valve product names of China Ball valve Network include:Q13SAF-64 Inner Thread Angle Meter Ball Valve，Q347F ANSI Stainless Steel Fixed Ball Valve，Q41F Telescopic Ball Valve，Q91SAF-64 Sleeve Meter Ball Valves，Q94SAF-64 Sleeve Three-way Meter Ball Valve，QG·M1 Pressure Gage Pipe Measurement Ball Valve，QG·Y1 Sleeve Pipe Measurement Ball Valve，QY-1 Pneumatic Pipe Ball Valve，QY-2 Sleeve Ball Valve，QY-3Q Air Supply Pipe Ball Valve，Sanitary Sleeve Ball Valve，Inner Thread，Single-plate Ball Valve，Single-plate Hexagonal Ball Valve (U.S.)，T-type, L-type Three-way Inner Thread Ball Valve，Inner Thread Three-plate Ball Valve，Pneumatic Three-plate Inner Thread Ball Valve，Three-plate Clamp Ball Valve，Three-plate Flange Ball Valve，Three-plate Inner Thread Square Ball Valve，Three-plate Lengthened Butt Welded Ball Valve.
2026 Price Reference for Cast Steel Wafer Ball Valve DN50
As of 2026, the market price of a cast steel wafer ball valve DN50 varies significantly based on the actuation type, body material grade, and sealing configuration.
For a manual lever-operated model with a cast steel (WCB) body and soft PTFE seat, prices generally range from approximately RMB 100 to RMB 500. A Q671F-16C DN50 cast steel wafer ball valve with a pneumatic actuator is listed at approximately RMB 100 to RMB 300 depending on order quantity. A manual Q71F series model from a domestic manufacturer may be found at the lower end of this range.
For electric actuated versions, prices increase substantially. A Q941F-16C DN50 electric wafer ball valve with a cast steel body is listed at approximately RMB 1,388 per unit from a Wenzhou-based manufacturer. This price reflects the addition of the electric actuator and control accessories.
For pneumatic actuated models (Q671F series), prices typically fall between RMB 200 and RMB 800, depending on the actuator brand, control accessories (solenoid valve, limit switch), and order quantity.
It is important to note that these are reference prices. The final transaction cost depends on the specific body material (WCB carbon steel, stainless steel, or alloy steel), seat material (PTFE, RPTFE, or metal), and actuator configuration.
Why the Wafer Design Saves Space and Installation Time
The defining characteristic of the wafer ball valve is its ultra-short face-to-face dimension. Unlike flanged ball valves, which require bolts to pass through the valve body flanges, the wafer design is clamped between two pipeline flanges and secured by bolts that pass through the adjacent pipe flanges.
This design delivers several practical advantages:
Dramatically reduced installation space – The overall length of a wafer ball valve is typically 1/2 to 1/3 that of a comparable flanged ball valve. In compact skids, crowded pipe racks, or retrofit projects where space is at a premium, this reduction can be the difference between fitting the valve or redesigning the piping.
Significant weight reduction – The wafer body contains less material than a flanged body, reducing the valve's weight to approximately 50% of an equivalent standard ball valve. This lighter weight simplifies handling during installation and reduces the load on pipe supports.
Simplified installation – With no through-bolts in the valve body, installation involves positioning the valve between the flanges, inserting the bolts through the pipe flanges, and tightening them evenly. This eliminates the need to align multiple bolt holes through a heavy valve body.
Key Selection Parameters for DN50 Wafer Ball Valves
When specifying a cast steel wafer ball valve DN50, several parameters must be confirmed.
Pressure Rating – DN50 wafer ball valves are commonly rated for PN16 or PN25 (1.6 to 2.5 MPa), with some models available up to PN40. The pressure rating must exceed the system's maximum operating pressure.
Body Material – WCB cast carbon steel is the standard choice for water, oil, gas, and non-corrosive media. For mildly corrosive service, stainless steel (304/316) bodies are available. The body is typically manufactured as an integral or split-body design.
Seat Material – PTFE or RPTFE soft seats provide bubble-tight sealing for temperatures up to approximately 150-180°C. For higher temperatures or abrasive media, metal-seated designs with hardfacing are available. The soft-seat design is generally preferred for its zero-leakage performance.
Connection Standard – The valve's face-to-face dimension should conform to standards such as ASME B16.10 or GB/T 12221. The valve is designed to fit between flanges conforming to ASME B16.5, GB/T 9119, or DIN/EN standards. Confirm compatibility with your existing flanges before ordering.
The cast steel wafer ball valve DN50 offers an effective combination of compact design, lightweight construction, and reliable flow control, making it ideal for space-constrained piping systems. As of 2026, manual models range from approximately RMB 100 to RMB 500, pneumatic actuated versions from RMB 200 to RMB 800, and electric actuated versions around RMB 1,388. When selecting this valve, pay careful attention to the pressure rating (PN16 or PN25), body material (WCB or stainless steel), seat material compatibility with your media and temperature, and connection standards. For the most competitive and accurate pricing, contact manufacturers directly with your complete technical specifications.
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