Features:
1. All wetted parts including body, bonnet, stem and disc are full lined with fluoroplastics
such as FEP(F46), PCTFE(F3), PFA, PTFE etc .
2. Fluoroplastic sealing surface , low friction coefficient , low torque.
3. PTFE(F4) packing.
4. Flexible wedge disc.
5. Allowable bi-direction flow, for on/off function pipelines.

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