Pneumatic three way control valve used to regulate three way pipe interconnect occasions, it has two types: Interflow and fractional flow, which can instead of two straight-way valves. It widely used in two way adjustment of heat exchanger. And also used in some occasions like simple match adjustment.
Nominal size 25~300 mm.
Structure and principle
1) Electrical regulating valve consists of two parts, straight stroke electrical actuator and regulating mechanism. You could find three structural types of valve from fig. 1, 2
2) For structure and principle of electrical actuator, please refer to related instructions of the product...
3) The apparatus is equipped with electrical operator and could realize two directions no disturbance switch of manual and automatic. It also could be used as remote controller. With indicating lamps of manual, automatic and ammeter, it could indicate valve level.
4) There are two action methods for one seat valve, electric open and electric close. When input signal increase, valve turns from closing position to opening position gradually, it is electric open type. When input signal increase, valve turn from open position to closing position gradually, it is electric close type. Provide according to electric open type ex. Works.
5) For three way valve, because open and close in valve exist at the same time, so it has no difference of electric open and electric close...
6) Working principle: Electrical regulating valve receive inputting current signal from regulating apparatus, action through electrical actuator, occur axial pushing force. Change flow area between valve core and valve seat ( or valve plug ) through connecting bar till feedback signal current of at position of electrical actuator equal to input signal current to reach the purpose of adjust technological parameters or change flowing direction of medium automatically...
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Nominal pressure |
1.6 4.0 6.4 |
|
Stroke |
16 |
25 |
40 |
60 |
100 |
|
Flow characteristic |
Straight line |
|
Medium temperature |
-20~+200,-40~+250(norminal temp),-40~425(middle temp) |
|
Flange size |
Cast iron flange size as JB78,cast steel flange size as JB79 |
|
Flange type |
Flange seal face type as JB77,cast steel flange as smoothly face ,and the cast steel flange is foveate |
|
Trim material |
WCB,ZG1Cr18Ni9Ti,ZG0Cr18Ni12Mo2Ti |
|
Trim material |
1Cr18Ni9Ti |
|
Bonnet type |
Ordinary type (nominal temp),hot chip(middle temp) |
|
Bonnet type |
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.
