Valve selection
Stainless steel V type regulating clamp ball valve
TVQ671WC Pneumatic V Adjustable Clamp Ball Valve
TVQ671WC adopts V type ball core, clamp connection and pneumatic actuator. The current page diameter is DN40-DN600, and the pressure configuration includes PN16, Class150 and 10K. The material fields are WCB and 304. The specific materials, valve seats, and drive configurations should be confirmed according to actual working conditions and orders.
Why can V type ball core be used for adjustment?
The V type opening gradually changes the effective flow area during the rotation of the core, making it suitable for corresponding flow regulation conditions. However, the actual flow characteristics, adjustable range, allowable pressure difference, and leakage level must be based on specific product data, without using a unified 300:1 adjustable ratio or fixed leakage level to describe all configurations.
Precautions for selecting clamp structures
The wafer-type structure is installed between two paired flanges. When selecting, it is necessary to check the valve body shape, installation length, flange standard, pressure rating, and the space required for valve disc or ball core movement. PN, Class, and JIS belong to different standard systems and cannot be simply interchanged by numbers.
How to configure pneumatic control?
When used for continuous adjustment, the valve positioner should be selected according to the control system, and the air source pressure, actuator torque, control signal, and valve position feedback should be confirmed. The action time, explosion-proof and communication functions are subject to the actual accessory configuration.
For more products, please refer toSelection of Pneumatic Ball ValveOther V ball valves can be viewedBall valve manufacturer column。
Frequently Asked Questions
Is the adjustable ratio fixed for V ball valve 300:1?
No, the actual adjustable range depends on the ball core, valve seat, actuator, and operating conditions, and should be based on the product data.
Does TVQ671WC use hard sealing by default?
Cannot default, should be confirmed based on the actual valve seat and order configuration of the current product.
Do adjustable pneumatic ball valves need to be equipped with valve positioners?
When used for continuous proportional control, corresponding positioning control configuration is usually required, which is determined by the requirements of the control system.

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