China General valve twin seal plug valve manufacturer, factory and supplier. General valve twin seal plug valve opening and closing process, no contact between the sealing surfaces of the General valve twin seal plug valve body and the vane, so the sealing surfaces suffer neither friction nor wear, contributing to the valve's long service life and small opening/ closing torque.

Rapid seal abrasion is inherent in the designs of most ball and gate valves. The double block-and-bleed (DBB) General valve twin seal plug valve reduces this constant wear by using two seating slips mounted independently on a tapered plug by dovetails, which mechanically retract from the seating surface prior to rotating. This provides a bubble-tight verifiable dual seal without seal abrasion.
 
General valve twin seal plug valve is superior to common gate and ball valves in terms of its sealing performance and service life.The general plug valve has the functions of being fireproof, on-line maintenance, double block and bleed, cavity pressure relief, internal leak detection and others. Illustrate the General valve twin seal plug valve functions and applications in the oil and gas storage and transportation systems in combination with examples, which has opened new development potential for process design of oil and gas storage and transportation systems and solved many problems encountered in pipeline design. General valve twin seal plug valve has not only optimized the pipeline design and improved the product quality but also saved the pipeline operation costs.

General valve twin seal plug valve specification