Specification

Sanitary Tank Bottom Valves are pneumatically or manually operated. They are mostly assembled at the bottom of the tanks/vessels for draining it when the need arises. The sanitary tank bottom valve has a conical shape that makes it possible to drain the tank while preventing the occurrence of dead legs and areas that trap dirt within the tank.The Tank bottom valve are widely used in the Pharmaceutical ,dairy, beverage, food processing, Cosmetic and chemical, industries.

Working Principle

Diaphragm Tank Bottom Valve When the valve is being closed, a pressure pad which supports the diaphragm moves towards the sealing face on the body. As the pressure plate moves, the diaphragm flexes and is forced down onto the seat area in the centre of the body, thus, closing off the flow path through the body.

Actuator Control mode

According to the site condition has the following three kinds of control mode, the reasonable selection of the control method can make your valves service life more longer, more convenient operation, cost savings.

1.Normally open type user

Suitable for pneumatic valve in the working time longer occasion. When the valve is normally open spring does not load external gas source thrust, then the valve fatigue to a minimum. Because it is by the air pressure to close valve, so need filed air pressure stability, air supply reliable.

2.Normally closed type user

Suitable for pneumatic valve is in the closed time working longer occasion. For depends on the spring to close, when air pressure to drive the piston push spring, valve open. So for the normally closed user this valve service life more long, gas more economical. At the same time when the air supply fails, the valve is in the closed state, this control state is the most widely used.

3.Double acting type user

Double acting type refers to the two chambers can be input compressed air separately, realize the two-way movement of the cylinder, no spring in the cylinder, the valve opening and closing rapidly, and can be used for large stroke valve, because it is by air pressure to close valve, so need the field gas source stability, air supply reliable.

Material Specifications:

Body : Forged/316L
Diaphragm : EPDM+PTFE
Connections: Clamp End/Weld End
Body Type: Direct Connection (Two Way)/Equal T/Reducing T/U Point
Operation: Normal Open/Normal Close
Work Tempreture: Diaphragm EPDM+PTFE (-10°C~150°C)
Work Pressure: Max 10 Bar
Surface: SF1 - ID Polished to Ra <= 0.5µm- 320 Grit
SF4-EP Finished to Ra <=0.38µm- 420 Grit
ID/OD Mirror Polished & ID Ra <=0.8µm/OD -180 Grit

Specifications