Valves
Cast Steel Valves
Forged Steel Valves
Ball Valves
Cast (Ductile) Iron
Valves
Stainless Steel Screwed Valves
Butterfly Valves
Plug Valves
Brass (Bronze) Valves

Fittings

Buttweld Fittings
Stainless Steel
Screwed Fittings
Quick Couplings
Brass (Bronze, Copper) Fittings
Ductile Iron Grooved Fittings
 
Advantages & Technical features
  1. Low operating torque ensuring ease of operation .
  2. Drop tight closure under full pressure.
  3. Lifting lugs are provided for easy lifting, handling and installation at site.
  4. Valves can be supplied complete with built-in by-pass.
  5. Opening/closing and position indicators are provided.
  6. The gearing and bearings are protected by water tight gearbox permanently packed with grease.
  7. Cold applied high solid epoxy resin (350 Microns) coated or Epoxy fusion bonded coated for protection against corrosion.
Operation & Control Mechanism
    The valves are suitable for a variety of operation e.g. T-key or ring key & bar, handwheel operation, electric, hydraulic or pneumatic actuators.
Inspection & Quality Control
  1. After completion of assembly each valve is shop operated three times from the fully open position to the fully closed position and return to fully open under no flow condition to demonstrate that the assembly is working smoothly.
  2. Each valves are hydrostatically tested at the place of manufacture to the pressures specified (Shell test at 1.5 times the working pressure and Seat test at 1.1 times the working pressure)before they are packed for delivery.
  3. Inspection of appearance and dimensions after various machining operations.
  4. Inspection of corrosion protection layers.
Dimensions (in mm) and weight
1200 1485 1390 1328 57 5 32-ø48 630 800 800 2897 2997 1625 ø900 6415
1000 1255 1170 1116 50 5 28-ø42 550 700 680 2398 2498 1468 ø900 5320
900 1125 1050 1000 46.5 5 28-ø39 510 600 645 2292 2392 1423 ø720 4000
800 1025 950 900 43 5 24-ø39 470 540 540 1851 1951 1242 ø720 3185
700 910 840 793 39.5 5 24-ø36 430 495 495 1696 1796 1156 ø720 2050
600 840 770 725 36 5 20-ø36 390 470 470 1478 1573 950 ø600 1140
500 715 650 610 31.5 4 20-ø33 350 390 390 1332 1427 812 ø600 754
450 640 585 548 30 4 20-ø30 330 350 350 1237 1332 740 ø600 615
400 580 525 490 28 4 16-ø30 310 320 320 1123 1229 676 ø600 470
350 520 470 438 26.5 4 16-ø27 290 285 285 1012 1132 610 ø500 360
DN D D1 D2 b f n-d L L1 H1 H2 H3 A D0 WT KG
 
© 2003-2004 Dalian Dawei International Co., Ltd. All rights reserved.
Address: #11, 18th floor, No.171, Luxun Road, Dalian, China.
Tel: 86-411-82783087 Fax: 86-411-82783297
E-mail: info@sino-valve.com