Principle of operation
The valve diaphragm acts as a valve plug. The flow rate de -pends on the free cross-section between the diaphragm and the bottom part of the valve body.
The actuator stem is fitted with stoppers which limit the force to protect the diaphragm.
Valves used in the pharmaceutical and food processing industries must be mounted at a certain angle due to the design inside of the valve (see fig. 6). This ensures that the PRO -cess medium can flow out of the valve easily and drain completely.
Fail-safe position
Depending on the arrangement of the compression springs in the actuator (see data sheet t 8310-1 en or t 8310-2 en for details), the valve has two fail-safe positions which become ef -fective upon supply air failure:
Actuator stem extends (fa)
The valve is closed upon air supply failure.
Actuator stem retracts(fe)
The valve is opened upon air supply failure
Shanghai ThinkTank Process Management Co., Ltd. is the sole production and R&D institute of Taiwan STONE Company in Mainland China. ThinkTank entered Chinese market in 2002 and moved from Hangzhou to Shanghai headquarter in 2012. Based on over 30 years experience in researching and manufacturing automatic instruments, brining in overseas advanced technology and combining domestic users real working situation, ThinkTank is specialized in producing new typed self-regulating valves, control valves and various kinds of automatic instruments. ThinkTank's business includes engineering projects such as electricity, metallurgy, petrochemical processing, light industry and building materials, municipal water service and natural gas.
Enterprise history
1985.08 Taiwan STONE company was established in Taipei city.
1990.02 Sales network covered Southeast Asia.
2002.06 Branch office was fund in Hangzhou, Zhejiang, handling all business in China
2012.10 Mainland head office was moved to Pudong, Shanghai
Shanghai ThinkTank Process Management Co., Ltd. Has a professional team works for control valves design and engineering application. ThinkTank develops a series of hi-tech products after absorbing overseas advanced technology and innovating.
*New self-regulating, micro pressure, differential pressure, flow, temperature control valve
*New pneumatic (electric) linear actuator (low dB, high pressure) control valve
*Pneumatic (electric) rotary actuator (O/V ball, butterfly) control valve
*Pneumatic (electric) special corrosion resisting control valve
Shanghai ThinkTank Process Management Co., Ltd sticks to the policy of "client oriented, quality comes first, and faith is root". Depending on many years experience on engineering application in various industries, ThinkTank provide clients with good, reliable full service, focusing on maximizing the rate of return on investment for clients.
