{"id":493,"date":"2026-04-08T15:43:17","date_gmt":"2026-04-08T15:43:17","guid":{"rendered":"https:\/\/cnkazev.com\/?post_type=product&p=493"},"modified":"2026-04-08T15:45:01","modified_gmt":"2026-04-08T15:45:01","slug":"butterfly-valve","status":"publish","type":"product","link":"https:\/\/cnkazev.com\/es\/producto\/butterfly-valve\/","title":{"rendered":"V\u00e1lvula de mariposa"},"content":{"rendered":"

The core selling points of the wafer butterfly valve (double eccentricity + soft seal)
\nAdvantages in Structure and Installation
\nDouble eccentric structure: The valve shaft is double-offset. When the butterfly plate is opened by approximately 20\u00b0, it detaches from the valve seat. This significantly reduces friction, requires low torque, and has a long service life.
\nClamp-type connection: No built-in flange. Compact structure, light weight, saves space and quick installation.
\nEasy to install, dismantle and repair: The valve seat can be replaced independently without disassembling the butterfly plate or the valve shaft, resulting in low maintenance costs.
\nSealing and Performance Highlights
\nBidirectional zero leakage: Soft seal (EPDM\/NBR\/PTFE) + lip type\/flexible seat, bubble grade seal
\nDynamic sealing: The tighter the seal, the higher the pressure. It compensates for temperature and pressure changes.
\nLow flow resistance + Excellent regulation: Approximately equal percentage flow characteristic, dual function of cut-off and regulation
\nNo jamming during opening and closing: Low friction, low torque, suitable for manual\/turbine\/pneumatic\/electric applications
\nAppropriate material for the working conditions
\nRich materials: Valve body WCB\/304\/316; Butterfly plate made of stainless steel; Valve seat available in multiple elastic materials for selection
\nWide applicability: water, oil, gas, steam, weakly corrosive media; -30\u2103 ~ 180\u2103 (depending on sealing components)
\nHigh durability: Can withstand tens of thousands of opening and closing operations without any loss, suitable for frequent switching conditions.
\nCost and Value for Money
\nLightweight and cost-effective: Lightweight by 30%+ compared to flanged butterfly valves, reducing the load on the pipeline and lowering installation costs
\nLong lifespan + Easy maintenance: Reduces downtime and spare parts consumption, and has a low total cost throughout the entire life cycle.<\/p>\n

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