Pressure Seal Valve

YDF pressure seal valves are designed in accordance with API600 for service of high temperature and high pressure and are widely used in nuclear plant and fossil fuel power plant. Compared with bolted bonnet joint valves, YDF pressure seal valves are more compact and rigid as well as maintenance cost-effective. Furthermore, it provides absolute reliable sealing of the bonnet joint.


 Design Feature


Product Range

Stellited seating surface
Low fugitive emission with TA-Luft certified
Flexible wedge
Full wedge guiding design
Absolute bonnet joint leak proof
Optional by-pass design, Y style Globe Valve, Check Valve



Gate, Globe, Check





Body Materials

Carbon Steel, Cr-Mo Alloy Steel,


Per API600

Gate Globe and Check Ball Valve Pipeline Valve Butterfly Valve Cryogenic Valve Other Valves
Axial Flow Check Valve
Dual Plate Check Valve
Bellow Sealed Valve
Pressure Seal Valve
API603 Stainless Steel Valve
API602 Forged Steel Valve
API600 Cast Valve
Metal Seated Ball Valve
Full Welded Ball Valve
Floating Ball Valve
Trunnion Mounted Ball Valve
Through Conduit Gate Valve
Double Offset Butterfly Valve
Triple Offset Butterfly Valve
Cryogenic Valve
Marine Valve
DBB Ball Valve (Dual Ball Side Entry)
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