Gate Valve API 603

API 603

API 603 Gate Valve Standard

Cast Stainless Steel Gate Valve API 603

API 603 specifies Corrosion-Resistant, Bolted Bonnet Gate Valve – Flanged and Butt-Welding Ends. The standard covers corrosion-resistant bolted bonnet gate valve with flanged or butt-weld ends in sizes NPS 1/2 through 24, corresponding to nominal pipe sizes in ASME B36.10M, and Classes 150, 300, and, 600, as specified in ASME B16.34.

These valve are used in applications where a thicker API 600 casting is not needed. However, the wall thickness normally conforms to ANSI B16.34 wall.

Gate Valve Pressure Rating :
  • Gate Valve API 603 ASME Class 150
  • Gate Valve API 603 ASME Class 200
  • Gate Valve API 603 ASME Class 300
  • Gate Valve API 603 ASME Class 600
Gate Valve API 603 Features :
  • Seat face: Ground and lapped to a smooth finish
  • Flexible wedge with low center stem-wedge contact. Wedge is ground and lapped to a smooth finish and closely guided to prevent dragging and seat damage
  • Non-rotating stem with precision ACME threads and burnished finish. Double ACME threads for faster operation
  • Body and bonnet joint accurately machined
  • Each valve is shell, seat and backseat pressure tested per industry standard API 598
  • Valve are available with socket weld ends
  • Yoke bushing can be lubricated to minimize friction and prolong life of the stem
  • Body and bonnet castings are precision machined
  • Gland has two-piece construction for easy alignment
  • Each valve has a unique certification number that is traceable to the valve certification sheet with includes MTR data, pressure test report, inspection report and certificate of conformance
bongkar jadi gate valve API 603 200X413
Full Port Design
OS&Y, Outside Screw and Yoke
BB, Bolted Bonnet
Flexible Wedge Fully Guided
Choice of Solid or Split Wedge
Seat Rings Integral with Body
Forged T-Head Stem
Rising Stem and Non-Rising Handwheel
Flanged or Butt Weldings Ends
Available with BG Operator
Steel Gate Valves, API 603
Steel Valves, ASME b16.34
Face to Face, ASME B16.10
End Flanges, ASME B16.5
Butt Welding Ends, ASME B16.25
Inspection and Test, API 598
BodyStainless Steel ASTM A351 CF8M
BonnetStainless Steel ASTM A351 CF8M
StemAISI – 316
DiscASTM A351 CF8M
Gland FlangeASTM A351 CF8M
Gland PackingPTFE (Option: Graphite)
HandwheelDuctile Iron
Body/Bonnet GasketPTFE (Option: Graphite)
Body/Bonnet BoltingASTM A193 B8/A194 Gr. 8
Gland Bolt/NutASTM A193 B8/A194 Gr. 8
Yoke SleeveDuctile Iron
Size1⁄2" - 24" (15mm to 600mm)
Valve DesignAPI 603/ASME B16.34
Flange DimensionsASME B16.5
Face to Face DimensionsASME B16.10
Nominal DiameterDN 15 - DN 600
BodyASTM A351 Gr.CF8M
StemA182 Gr.F316