The use of main valve seat increase water displacement, can achieve small volume, large displacement, is the most ideal choice for large heating equipment, and is widely used in chemical industry, paper making, food industry steam, and other equipment.
Use the advanced double seat mechanism, through the body inside special lever system, make the spherical seal.
Its appearance design is unique, simple and beautiful, unique seat structure design, reliable spherical sealing, all stainless steel internal parts, make its long service life, corrosion resistance, the built-in automatic exhaust valve, discharge of condensate gas not when it is started.
Internal and water seal, can stop the steam leakage, very energy saving.
工作原理和结构说明（the working principle and structure）：
This valve is mainly composed of body, valve cover, the main and the vice valve seat, sphere, open-close part and other parts.
In air and low-temperature condensate valve pipe into the valve body, through special lever device inside, floating spheres, make its drives the ball valve open, have the effect of vapor barrier drainage.