Pressure Safety Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Pressure safety valves
Product introductions
When there is abnormal pressure endanger silo structure, the safety pressure valve is the last line of defense. This is the reason that when the silo is pressurized too large or too large pumping pressure to be dealt immediately. Efficient and reliable pressure safety valve is a essential equipment of silo system,. When the pressure is within the preset range, the coil spring makes the bonnet keep off. Three external spring rod makes the external annular bonnet to maintain tightly closed until the silo pressure is less than the spring force.
When the silo pressure is too high or too low, once the pressure exceeds preset range, bonnet will push up to release pressure. The smaller bonnet covers external bonnet center circular opening from the bottom. The smaller bonnet is fixed by a single spring rod, and through the silo internal standard atmospheric pressure compress to the external bonnet.when pumping pressure, the springs compress and let bonnet down. Air enters from outside of the silo, to ensure that a rapid pressure balance and push the bonnet into the closed position. All the process is without manual operation. It is widely used in material storage tanks, top of storage hopper, usually used together with the warehouse roof duster.
Technical parameter
●carbon steel body, body diameter = 273mm
●maximum air volume 9.000m3 /h
●maximun preset negative pressure value- 0.002 bar ； maximum pressure + 0.05 bar
●weight： 9.5 kg
●Light design, reduce the overall size, easy to carry
●high anti-pressure disturbance
●easy to install
●maintain quickly
External dimensions
Pressure safety valve external dimensions(pic1)
Pressure safety valve external dimensions(pic2)
