K Shape Parallel Double Disc Slide High Pressure Gate Valve Metal Seated For Oil

K Shape Parallel Double Disc Slide High Pressure Gate Valve For Oil Applications

Descriptions:

Double disc gate valves are a special design of gate valves that improves considerably the performance of the unit.

Advantages:

• Reliable operations: It is designed to assure reliable operation under the most severe service conditions. Due to the special configuration and geometry of the upper wedge inclined face, any possibility of locking the disc in closed position is eliminated, even when closed quickly or subjected to severe thermal transients.
• Low pressure sealing: The wedge assembly is designed to impart sufficient thrust to each disc to maintain low pressure sealing. As the differential pressure across the disc increases, the seating load also increases, thus providing a tight seal throughout the entire range of operating differential pressures. Since the discs are independent of each other and the design is symmetrical, positive sealing can be maintained in either direction.
• Easy Maintenance: The 4-pcs double disc wedge assembly can neither be incorrectly assembled nor become disengaged while in service. No special fitting at site is required for maintenance. The repair of minor seat or disc damage is greatly simplified because the seats and discs can be lapped independently of each other. Disassembly and maintenance can be accomplished without special tools or elaborate rigging.
• Rapid closure: TEKO Valve’s Double Disc Wedge system permits rapid closure without seat distortion. Internal moving parts decelerate independently of each other with the result that inertial forces are dissipated in a series of impacts over a period of time. The largest of these is transmitted directly to the bottom of the valve body on a non-sealing surface. Forces transmitted directly to the seats are a small percentage of the total inertial forces. This is a distinct advantage over valve designs in which the total inertial force is absorbed directly by the seating surface

Standard Material