What are the characteristics and applications of straight-through single-seat control valves?
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- The discharge flow is small, the sealing performance of this kind of valve can be assured since it has only one valve core. The standard discharge flow is 0.01% KV and can be further designed as a shut-off valve.
- The allowable pressure difference is small because the unbalanced force is large. The pressure difference of a DN100 valve is only 120KPa.
- The circulation capacity is small. The KV value of a DN100 valve is only 120. It is often used in applications where the amount of leakage is small and the pressure difference is not large.