
Use Installed in the water, gas pipelines as a gate devices. Structural characteristics 1. stem to come to the surface by nitriding corrosion resistance, good anti-corrosion and anti-scratch. 2. Valves percussive pistol used to reduce the power valve operation. 3. the use of pressure tight seal structure, a flexible single-gate, at both ends to connect branches for welding 4. the higher the pressure valve, the better sealing performance. 5. valve seat sealing surface, such as the use of Co-based cemented carbide by plasma spray. Wear-resistant, anti-abrasion performance and valve sealing surface hardening by nitrogen processing. Main parts materials Model Parts Name Valve, gate Seat Valve cover Stem Ring Tetraena circle Filler Z61\0Y-250 Z61\0Y-320 WCB Stainless Steel WCB 2Cr13 38Cr2MoA1Nitride Forming graphite ring Stainless Steel Flexible Graphite Z61\0Y-P54100V Z61\0Y-P54140V Z61\0Y-P54170V Chrome vanadium steel key Chrome vanadium steel key Carbon steel / chrome vanadium steel key 25Cr2Mo1VNitride Forming graphite ring Chrome vanadium steel key Flexible Graphite The main dimensions and connection dimensions
DN(mm) Size(mm) Reference weight(kg) L D D1 d H W 50 280 82 50 50 585 300 42 65 340 110 65 65 650 320 53 80 470 130 80 80 680 400 130 100 550 170 100 95 755 450 180 125 600 195 136 115 830 500 190 150 700 225 162 133 1050 550 320 175 750 225 179 142 1050 600 400 200 800 285 200 170 1050 650 550 225 850 300 233 205 1100 700 600 |