VATAC Forged Steel Gate Valves are with Features and Specifications as below:
Design & Manufacture: API 602
Constructions: OS&Y, Bolted Bonnet, Welded Bonnet & Pressure Sealed Bonnet
Back-seating, Renewable Seat Ring
Full Port / Conventional Port
Size Range: 1/4" to 4"N. B.
Pressure Ratings: ANSI 800, 900, 1500 & 2500
End Connections: Threaded, Flanged, Buttweld, Socket Weld, Hub Connectors, Compact Flange or other proprietary connections.
Materials Available in: A105, F304, F316 or Equivalent, Available also in low temperature steels, low alloy steels, stainless steels, duplex type stainless steels and other exotic materials; Various trim materials available to suit service conditions
Various trim materials are available to suit different service conditions
To MR 0175 and MR 103 on request
CERTIFICATES
API
TUV CE
ISO
| Construction is as follows: | | | | | | | |
| - Full Port or Standard Port |
| - Outside Screw and Yoke(OS&Y) |
| - Bolted Bonnet with spiral-would gasket, threaded and seal welded bonnet and threaded and pressure seal bonnet |
| - Integral Backseat |
| - Loose solid disc |
| - Socket Weld Ends to ASME B16.11 |
| - Butt Weld Ends to ASME B16.25 |
| - Screwed Ends to ANSI/ASME B1.20.1 |
| - Flanged Ends to ASME B16.5 |
| Main Part & Materials | | | | | | | | |
| Part Names | Part Materials |
| Body | A105 | LF2 | F22 | F304 | F316 | F304L | F316L | B62 |
| Bonnet | A105 | LF2 | F22 | F304 | F316 | F304L | F316L | B62 |
| Disc/Ball/Wedge | A105 | SS304 | F22 | F304 | F316 | F304L | F316L | B62 |
| Stem | A105 | F304 | F6a | F304 | F316 | F304L | F316L | B62 |
| Seat/Seat Ring | 13%Cr | SS304 | 13%Cr | F304 | F316 | F304L | F316L | B62 |
| Packing | Graphite/PTFE |
| Gasket | SS304+Graphite/SS304+Graphite |
| Bolts/Nuts | B7/2H | L7/4 | B16/4 | B8/8 | B8M/8M | B8/8 | B8M/8M | B8M/8M |
| Suitable Medium | W.O.G etc. | HNO3, CH3OOH etc. | Sea Water etc. |
| Suitable Temperature | -29~425 °C | -46~340 °C | -46~340 °C | -196~427 °C | -196~427 °C | -196~427 °C | -196~427 °C | -29~220 °C |