DGV pressure seal gate valves are designed for high temperature, high pressure services mainly used in nuclear and fossil
fuel power plant, refinery, petrochemical, etc. Compare with bolted bonnet gate valves, DGV pressure seal gate valves are
less complicated and can provide absolute excellent seal service with minimum maintenance.
Applicable Standard
Design Standard: API 600, BS 1414
Face to Face: ASME B16.10, EN 558
End Flange: ASME B16.5
Buttwelding Ends: ASME B16.25
Inspection and Test: API 598
Products Range
Size: 2" ~ 30"(DN50 ~ DN750)
Rating: ANSI 600lb ~ 2500lb
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Trim: Per API 600
Operation: Handwheel, Gear, Motor, Pneumatic, Hydraulic
Design Features
Full port design
Pressure sealed bonnet, back seal structure
Absolute bonnet joint leak proof
Flexible wedge, fully guided
Stellite sealing surface
Flanged or butt-welding ends
Optional by-pass design
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