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China Guoda Valve Manufacturer

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Gate valve

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Gate Valves BoTeli valves are available in three bonnet designs. The first design is the Bolted Bonnet, With male-female joint, spiral wound gasket, made in F304L/graphite, Ring joint gasket are also available on request. The second design is the welded bonnet ,with a threaded and seal welded joint. On request a full penetration strength welded joint is available. The trird design is the pressure seal bonnet, with a threaded and pressure seal bonnet joint. Gate Valve Design Construction and Specifications BoTeLi gate valves conform to API 602,BS5352,and ASME B 16.34, Each are tested according to API598 , and marking is per MSS SP-25. Construction is as follows: Full Port or Convetional PortOutside Screw and Yoke(OS&Y)Two Piece self aligning packing glandBolted bonnet with spiral-wound gasket, threaded and seal welded bonnet or threaded and pressure seal bonnetIntegral backseatSocket weld Ends to ASME B16.11Screwed Ends(NPT) to ANSI/ASME B1.20.1 Gate Valve 800Lb Standard Material Specifications NO. Part Name CS To ASTM AS to ASTM SS to ASTM Type A 105 Type F22 Type F304(L) Type F316(L) 1 Body A105 A182 F22 A182 F304(L) A182 F316(L) 2 Seat Ring A276 420 A276 304 A276 304(L) A276 316(L) 3 Wedge A276 430&410 A182 F304 A182 F304(L) A182 F316(L) 4 Stem A182 F6 A182 F304 A182 F304(L) A182 F316(L) 5 Gasket Corrugated SS+graphite SS+PTFE 6 Bonnet A105 A182 F22 A182 F304(L) A182 F316(L) 7 Bonnet Bolt A193 B7 A193 B16 A193 B8 A193 B8M 8 Pin A276 420 A182 F304 9 Gland A276 410 A182 F304(L) A182 F316(L) 10 Gland Eyebolt A193 B7 A193 B16 A193 B8 A193 B8M 11 Gland Flange A105 A182 F11 A182 F304(L) A182 F316(L) 12 Gland Nut A194 2H A194 4 A194 8 A194 8M 13 Yoke Nut A276 420 14 H.W Lock Nut A194 2H A194 4 A194 8 A194 8M 15 Nameplate SS 16 HandWheel A197 17 Bearing Gasket A473 431 18 Stem Packing Flexible Graphite PTFE Suitable Medium W.O.G.etc W.O.G.etc HNO3,CH3OOH etc Suitable Temperature -29°C~425°C -29°C~550°C -29°C~180°C Note:Other materials are available upon request.CS=Carbon Steel;AS=Alloy Steel;SS=Stainless Steel; Dimensions(mm) and Weights(Kg) NPS Conv. 1 1 1 2 Full 1 1 1 2 L 79 79 92 111 120 120 140 178 H(OPEN) 158 158 169 197 236 246 283 330 W 100 100 100 125 160 160 180 200 Weights Bolted 2.1 2.0 2.3 4.3 5.9 6.9 11.1 15.2 Welded 1.8 1.7 2.0 3.8 5.1 6.1 10.2 14.2

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