Product Name:Plastic PVC PP PPH PVDF CPVC True Union Flange Ball Valve/Pneumatic Electric Weir Diaphragm /Wcb /Stainless Steel Swing Check Valve /Hand Gear Butterfly Valve PV121B is a new type butterfly valve developed for water supply and water treatment application. The principle, structural characteristics and application range of the butterfly valve: The butterfly valve has the characteristics of simple structure, small volume, light weight, material consumption, small installation size, rapid switch, 90° reciprocating rotation, small driving torque, etc. It is used to cut off, connect and adjust the medium in the pipeline. Fluid control characteristics and shut-off sealing performance. When the butterfly valve is in the fully open position, the thickness of the disc is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is small, so it has better flow control characteristics. The butterfly valve has two sealing types: elastic seal and metal seal . Butterfly valve advantages: 1. Easy and quick opening and closing, labor saving, small fluid resistance, and can be operated frequently. 2. simple structure, small size and light weight. 3. can transport mud, accumulate liquid in the pipe mouth less. Basic specification Size:DN50~DN200 (2 inch ~ 8 inch) Body Material:PVC-U;PP Seal material:EPDM Wafer connection:DIN PN10; ANSI CL150; JIS 10K Design pressure:1.0Mpa(PN10 bar) Feature of valve Disc and seat that touch medium are made from plastic and rubber. Multi-hole ?t for different standards connection Valve is easy to assemble and disassemble to change damaged parts Dry-stem are optional Electric and pneumatic actuator mounting are available Norminal Size D1 d1 d2 D n1 Φh1 A B L1 L2 L3 DN(Inch) DIN ANSI JIS DN50(2") 125 120 120 50 85 162 4 18 210 116 35 205 44 DN65(2-1/2") 145 140 140 65 100 179 4 18 210 116 35 218 46 DN80(3") 160 152 150 80 110 195 8 18 220 136 35 242 57 DN100(4") 180 190 175 100 135 225 8 18 220 136 35 273 60 DN125(5") 210 216 210 125 165 255 8 18 273 150 46 303 66 DN150(6") 240 241 240 150 190 280 8 22 273 150 46 330 72 Brief introduction: The diaphragm valve has a simple structure, small fluid resistance, and larger circulation capacity than other types of valves of the same specification; no leakage, and can be used for high viscosity and suspension particle medium adjustment. The diaphragm separates the medium from the upper cavity of the valve stem, so there is no packing medium and no leakage. Basic specification Size range:DN125~DN250 (5 inch ~ 10 inch) Body materials:PVC-U;PVC-C;PVDF;PP-GF;PP-H Diaphragm material:PTFE with EPDM cushion Flange connection:DIN PN10; ANSI CL150; JIS 10K Design pressure:0.4~0.7Mpa (PN4~PN7 bar) Feature of valve Body and diaphragm that touch medium are made from plastic and rubber. EPDM cushion protect the PTFE diaphragm from over tighten, make sealing better Steel gasket make the bonnet and body bolted stronger and sealing better. Iron disc is strong to make the diaphragm seal with body better. Pneumatic actuator mounting is available. Brief introduction: Ball valve, the opening and closing member is driven by the valve stem and rotated around the axis of the ball valve. It can also be used for fluid adjustment and control, in which the hard sealed V-type ball valve has its V-type ball core and the overlaid welded carbide metal valve seat has a strong shear force, especially suitable for the medium containing fiber, small solid burst material, etc. The multi-pass ball valve can not only flexibly control the flow, diversion and flow direction of the