D371JH half with rubber worm wafer butterfly valve

D371JH half with rubber worm wafer butterfly valve with a circular disc for opening and closing member and with the stem rotation to open, close and adjust butterfly valve connections are flanged, wafer, welded connections and lugs Wafer connection. Butterfly suitable furnace, gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical refining and power generation, environmental protection, building water supply and drainage engineering systems transport all kinds of corrosive, non-corrosive fluids pipeline, and with the for regulating and cutting off the flow of media. Butterfly known as flap valve, a control valve simple structure, but also can be used to switch control of the low-pressure pipeline medium. Valve means closed parts (disc or disc) to the disc around the valve axis to achieve the opening and closing a valve in the main pipeline from the cutting and the throttling effect. Valve opening and closing member is a disc-shaped butterfly plate in the valve body around its own axis, so as to achieve the purpose of opening and closing or adjusting. Butterfly suitable furnace, gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical metallurgy and power generation and environmental protection engineering systems transport all kinds of corrosive, non-corrosive fluid medium pipe for adjusting and truncation flowing medium. Disc driven by the stem, if rotated 90 °, will be able to complete a hoist. Change disc deflection angle, you can control the flow of media. Common butterfly valve wafer butterfly valve and flange type two kinds. Butterfly Valve is studs to connect the valve between two pipeline flanges, butterfly valve is a valve with a flange with bolt flanged ends of the valve on the pipe flange. Structural features a butterfly, butterfly has a simple structure, small size, light weight, material consumption province, small installation size, switch quickly, 90 ° reciprocating rotary drive torque characteristics of small, used to cut, turn, regulate pipeline medium, having good fluid sealing and closing control characteristics. 2, the valve can carry mud accumulation of fluid in the pipe mouth least. Under low pressure, a good seal can be achieved. Regulation performance. 3, the streamlined design of the disc, the fluid resistance loss, can be described as a kind of energy-saving products. 4, stem to pass pole structure, after quenching, with good mechanical properties and corrosion resistance, abrasion resistance. When the valve opening and closing the valve stem rotates not only for the lifting operation, the valve stem packing is not easy to destroy, reliable sealing. And disc taper pin fixed, extended end to prevent out design, in order to avoid the stem and disc connected to the valve stem when the collapse of the accident at the break. 5, the connections are flanged, wafer, welded connections and lug wafer connection. Butterfly advantages 1, open and close easily and quickly, saving, fluid resistance, you can often operate. 2, simple structure, small size, short length of the structure, small size, light weight, suitable for large-diameter valve. 3, can carry mud accumulation of fluid in the pipe mouth least. 4, low pressure, a good seal can be achieved. 5, regulated performance. 6, when fully open valve effective flow channel larger, smaller fluid resistance. 7, opening and closing torque is small, because the shaft on both sides of the disc that is substantially equal to the role of the media, but in the opposite direction torque is generated, and thus open and close more effort. 8, sealing surface material commonly used in rubber, plastics, so good low pressure sealing performance. "Manual Wafer soft seal butterfly" "Wafer soft seal butterfly valve" "clip-on electric soft seal butterfly" "worm gear soft seal butterfly" "pneumatic soft seal butterfly" "worm gear seal butterfly" "Electric Butterfly Valve "" GB fluorine lined butterfly "" worm gear ventilation butterfly "" handle operating ventilation valve "" Electric Wafer Butterfly Valve "" Electric Wafer soft seal butterfly valve "" flanged butterfly "" worm gear wafer soft seal Butterfly "" Butterfly "series" of fierce style seal butterfly "" butterfly Price List "" pilot valve "" Electric ventilation butterfly "" quick closing valve "" Pneumatic Wafer Butterfly Valve "" pneumatic Wafer soft seal butterfly "" worm gear Wafer soft seal butterfly "" worm drive clip-seal butterfly "" pneumatic seal butterfly "" clip-on pneumatic soft sealing butterfly "" butterfly cushion valve "" American Standard Butterfly "" fire control signal valve "" Pneumatic ventilation valve "" clip-seal butterfly "" butterfly "" butterfly stretch "" electric soft seal butterfly "