Can the pneumatic V ball valve handle fiber slurry and solve all blockages with shear action?

The corresponding structure of V ball valve can help handle some fiber containing media, but the shear effect is not the function of clearing any debris. Firstly, provide information on fibers, particles, and sedimentation, and then evaluate channels, loads, and abrasion.

The first change in the V type opening is the effective flow area

When the ball core rotates, the effective area formed by the V opening and valve seat changes, which can be used for process adjustment with appropriate driving. The opening contour, sealing structure, and pipe network pressure difference jointly affect the flow performance. Shear contact belongs to the mechanical action of the corresponding structure, and the fixed particle passing size or cutting ability cannot be given simply because the product is called V ball valve. The precision capability needs to be supported by actual specifications and medium testing.

The problems caused by fibers and hard particles are different

Fibers may entangle, bridge, or aggregate at the edge of the opening, while hard particles may scratch the seal or form mechanical barriers. Higher solid content can also alter rheology and flow resistance. Only reporting media as pulp or wastewater, insufficient information. The selection should specify the length distribution, particle size, hardness, solid content, and temperature, and distinguish between continuous suspension state and sedimentation state after shutdown, and not treat materials from the same industry as a unified medium.

Small opening and high pressure difference will change the location of abrasion

At small openings, local flow velocity and particle erosion may be concentrated near the opening and valve seat. When long-term low flow control is required, the stability, sealing material, and wear risk of the opening range should be compared, rather than only considering the fully open flow rate. Increasing the output of the actuator cannot solve the problem of high flow rate or unsuitable materials, and may also increase the mechanical load during blockage. The flow capacity and solid throughput capacity should be proven separately.

Simultaneously hand over material data and control requirements to the selection personnel

The inquiry should include the minimum normal maximum flow rate, pressure difference at each point, solid content, fiber and particle conditions, downtime, leakage requirements, and gas source conditions. The selection of materials and seals should also cover the cleaning medium. Suppliers need to compare the core, seat, and drive based on these conditions, and cannot determine the lifespan based on a single material photo. A system that frequently changes process batches should also record the most unfavorable materials, not just the average concentration.

Comparison of selection information

Corresponding products and selection entrance

Disassembling and evaluating the adjustment, shearing, and closing functions of the V ball valve can avoid one feature replacing all capabilities. Only after the material characteristics and actual control opening are clear can suitable valve seats, driving, and maintenance expectations be discussed.

Related structures can be combinedPneumatic V ball valve VQ647F-16CUnderstanding of specific product information. See more similar directionsPneumatic Valve Product Column。