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concentric butterly valve factory

Lug concentric butterfly valves is designed to maintain a seal against bi-directional pressure differential to prevent backflow in systems designed for unidirectional flow. it accomplishes this with a tightly fitting seal, i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve, valves have threaded inserts at both sides of the valve
Concentric butterfly valve the structural feature of the concentric butterfly valve is that the stem axis, the center of the disc, and the center of the body are at the same position. the structure is simple, the manufacture is convenient, and the valve can achieve zero leakage. the seat is usually nbr, epdm, ptfe, viton and other rubbers.
27 rows · llug concentric butterfly valve features a cartridge type seat, streamlined disc and
Zhejiang zhengfeng valve co., ltd. was founded in 1993, the company is located in five-star industrial zone dong'ou wenzhou city zhejiang province our company is innovative, the products are mainly based on iso, api, ansi, bs, din nf, jis, gb, jb and other standard production, nominal diameter 2-80 (dn50-dn2000mm), pressure rating 150lb-2500lb (pn6-pn150), the

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