Gate valves are primarily used for stop valves fully opened or fully closed. They are not normally considered for throttling purposes.
Gate valves usually have a minimum pressure drop when fully open, provide tight shut-off when fully closed, and remain relatively free of contamination buildup.
The design of the body and bonnet is calculated to achieve the most regular distribution of stress in all directions, as well as the minimum turbulence and resistance to flow.
All gates are fully guided to the seats. The flexible wedge is cast or machined with a circumferential groove to allow the seating surfaces to move independently and adjust to movement of the body seats. This design of gate is ideally suited for steam or other high temperature services and is especially useful to prevent sticking where valves are closed when hot and opened when cold. Seat rings are designed to greatly reduce and/or prevent any turbulence and avoid damages due to the corrosion.
» Bolted bonnet, welded bonnet, pressure seal, API 6D and cryogenic design options
» Flexible wedge, paralel slide, slab/expanding gate options
» Minimum pressure drop and tight shut-off
» Special seat and gate design preventing contamination build-up
» Design preventing damages related to corrosion
Size:
1/2 - 24" (larger sizes are optional)
Pressure Class:
ANSI 150 - 4500
Connection:
SW, NPT, BW, RF, RJ, HUB, Compact Flange
Operation:
Manual, Electric/Pneumatic Actuator
Material Options:
Carbon Steel
Stainless Steel
Duplex/Super Duplex
Monel
Nickel
Inconel
Hasteloy
Titanium
Zirconium