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Certification:CE,TRCU,ISO9001
Soft Sealing Automatic Control Valve for Steam / Water High Pressure Difference
Pneumatic Diaphragm Intelligent Low-noise Cooling Fin Single-seat Control Valve
General:
YSIQ(D)12G Series of Intelligent Single-Seat Control Valve use modular design, with advantages of impact structure and wide varieties. The varieties combination of the trim components, make it applicable for high pressure difference, high precision and low noise conditions to meet the different usage for customers’ requirements. The modular design, double-sides valve seat and compressing tightly connection, all greatly enhance valve sealing grade and its service life, which make it easy to repair and greatly increase its general performance.
Working principle:
The equipped smart positioner will convert to valve required settings when receive normal signal of electricity or signal of computer. Then the pneumatic actuator linear displacement will change to angular displacement by valve special connections, and tested by position transducer then feedback to microprocessor.
The microprocessor will compare the actual valve feedback with original settings and tested if there is any deviation. It will output pulse width modulation command(PWM) to piezoelectric valve according to the the size and direction of deviation. The piezoelectric valve will regulate the input or exhaust gas under the control command.
Main Parts Materials Table 1
|
Item |
Part Name |
Material |
|||
|
1 |
Body |
WCB |
WC6 |
CF8 |
CF8M |
|
2 |
Seat |
304,316/Partial Stellite |
316/Partial Stellite |
||
|
3 |
Plug |
Metal Sealing |
304,316/Partial Stellite |
316/Partial Stellite |
|
|
Soft Sealing |
304,316+Reinforced Teflon |
316+Reinforced Teflon |
|||
|
4 |
Cage |
304,316 |
316 |
||
|
5 |
Guide Sleeve |
304,316 |
316 |
||
|
6 |
Stem |
304,316 |
316 |
||
|
7 |
Bonnet |
WCB |
WC6 |
CF8 |
CF8M |
*Above is the common materials, the specific grades take the contract as a standard.
Specification &Technical Parameter Table 2
|
Type |
Top Guide(Double Guide)Single Seat |
|
Nominal Diameter |
DN15～DN400(1/2”～16”) |
|
Nominal Pressure |
PN16,25,40,64,100(150lb,300lb,600lb) |
|
Flow Characteristic |
Equal Percentage, Linear, Quick Open(For Shut-Off Valve) |
|
Rangeability |
50:1 |
|
Bonnet Form |
Standard Type:Cast Steel :-20～250℃ Cast Stainless Steel:-40～250℃ |
|
Fin-Extension Type:Cast Steel:-29～425℃ Cast Stainless Steel:-40～450℃ |
|
|
Low-Temp. Type:Cast Stainless Steel:-60～-100℃,-100～-200℃,-200～-250℃ |
|
|
Seat Leakage |
ANSI Ⅳ,V,Ⅵ(Soft Sealing) |
Main Performance Index Table 3
|
No. |
Item |
Standard Type |
Fin-Extension Type, Low-Temp. Type |
|
1 |
Basic Error＜(%) |
±1 |
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