Gas-Over-Oil Full Welded Ball Valve

Product Introduction

LYV®️ Gas-over-oil full welded ball valve through a self-actuating actuator. By the pressure of the medium of the pipeline itself to actuate valve open and close. The product directly use natural gas inside of the pipeline as the air supply of pneumatic. The whole system design for high pressure. Through air supply filtering process without decompression. The gas directly into the gas tank and high-pressure control valve components. Under the action of the control signal, the high-pressure controlled gas enters the corresponding gas/liquid circuit. And by the principle of isobaric transmission of the liquid medium to realize the gas/liquid synchronous transmission, acting on the hydraulic cylinder of the valve drive device and controlling the valve.

The LYV®️ Gas-over-oil full welded ball valve can automatically monitor the pipeline pressure to realize automatic closure. The working principle is simple, the controlling is safe and reliable. And can meet the harsh conditions of outdoor weather. The product can reduce the risk of accidents and avoid further expansion of disasters in the applications of long-distance transportation pipeline and dangerous chemical mediumpipeline. 

Specifications

Features

■  A: Multi direction manual pump 

■  B: Remote-local Isolation shift valve 

■  C: Full welded hydraulic cylinder

■  D: Pneumatic control valve

■  E: Gas/liquid tank

■  F: Positioner

■  G: Parallel scotch yoke mechanical structure

■  H: Insulation filter