Product Details:
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Features: | Expanding | Body Material: | WCB/CF8/CF8M/CF3/CF3M |
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End Connection: | Flange, Butt Weld | Size Rating: | NPS 2"-48" |
Applications: | WOG Etc. | Seat Material: | PTFE, Metal Seated |
High Pressure Double Disc Through Conduit Expanding Gate Valve Self Relieving Function For Petroleum
Expanding Gate Valves
Our Cast body expanding gate valve is designed for use in liquid service applications. This full bore, through-conduit gate valve features a mechanically sealing gate to assure positive shut-off. The valve can be trimmed to meet most specifications handling a wide range of products and services. Extension and adaptation for actuation re options regularly requested and provided.
Main Features
Size Available
Pressure rating
Applications
Mainline Blocks | Launchers/Receivers | Pumping stations | Multi-product manifolds |
Product isolation | Filtration and process | High temperature | Metering Stations |
Principle of operation
Fully closed position
In the full closed position, the segment stop has engaged with the lower body stop and the gate is wedged downward, expanding the gate and segment to form a tight seal against the upstream and downstream seats
Mid Position
When Operating towards the open position, the gate travels across the wedge angle of the segment. This retracts the assembly so that is will slide freely between the seat faces.
Fully open position
In the full open position, the segment stop has engaged the bonnet stop and the gate is wedged upward. This expands the segment and the gate into the seats, isolating the flow from the cavity.
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