Tel:+86-17717520739
Email:info@shxvalve.com
Address: NO.720, Suide Road, Jiading District,Shanghai, China.
Model:
Electric control valve Body type: |
straight through casting globe type |
Spool type: | non-balanced single seat plug type |
Nominal size: | DN20~300,、 NPS 3/4〞~ 12〞 |
Nominal pressure: | PN16 ~ 100、 CLASS 150LB ~ 600LB |
Connection: flange: | FF、RF、MF、RTJ |
Welding: | SW、BW |
Flange dimension: | According to to IEC 60534 |
Electric steam globe control valve Bonnet type: | Ⅰ:standard type(-20℃~230℃) Ⅱ:Radiator type: (-45℃~ high than 230℃ occasion) Ⅲ:Low temperature extended type(-196℃~ -45℃) Ⅳ:Bellow seal type Ⅴ:Warm insulation Jacket type |
Packing: | V type PFTE packing, flex. graphite packing, etc. |
Gasket: | Metal graphite packing |
Actuator: | Electric: DZK series actuator. |
Component name | Control Valve Material |
Body/Bonnet | WCB/WCC/WC6/CF8/CF8M/CF3M |
Valve spool/Seat | 304/316/316L(overlaying stellite alloy) |
Packing | Normal:-196~150℃ is PTFE,RTFE,>230℃ is flexible graphite |
Bellows | 304/316/316L |
Gasket | Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket |
Control valve stem | 2Cr13/17-4PH/304/316/316L |
Electric control valve Flow characteristic | Linear, Equal percentage, quick open | |
Allowable range | 50: 1 (CV<6.3 30: 1) | |
Rated Cv value | Percentage CV1.6~630 ,linear CV1.8~690 | |
Electric control valve Allowable leakage | Metal seal: IV grade(0.01% rated capacity) Soft seal: VI grade(foam grade) Leakage standard: GB/T 4213 |
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Electric steam globe control valve Performance | ||
Intrinsic error (%) | ±1.0 | |
Return difference(%) | ≤1.0 | |
Dead zone(%) | ≤1.0 | |
Difference from beginning to end point(%) | ±2.5 | |
Rated travel difference(%) | ≤2.5 |
Special test | Material penetration flaw detection (PT), radiator test (RT), flow characteristic test, low temperature test. |
Special treatment | Trim nitrogen treatment, seat hard alloy treatment. |
Special rinse | Degreasing and dehydration treatment |
Special condition | Special piping or connection, vacuum condition, S.S fastener, special coating. |
Special dimension | Customized face to face length or dimension |
Test and inspection | Third party test report |
Electric control valve Type\ Method | Electric actuator |
DKZ series | |
Intelligent integrated type | |
Usage | Regulating |
Air supply pressure or Power supply voltage | Power: AC 200V±10% 50Hz Or Power: AC 380V±10% 50Hz |
Connector | Normal type: cable inlet 2-PF(G1/2〞) Explosive proof: Protection jacket PF(G3/4〞) |
Direct action | Input signal increase, stem descend, valve close. |
Reaction | Input signal increase, stem ascend, valve open. |
Input signal | Input/output4~20mA.DC |
Lag | ≤0.8%FS |
Linear type | ≤+1%FS |
Environmental temperature | Standard type: -10℃~+60℃ With space heater : -35℃~+60℃ Explosive proof: -10℃~+40℃ |
Electric control valve Accessories | Space heater (normal type) Non-standard accessories, need special customized notes. |
Nominal diameter DN |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
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Spool Diameter (mm) |
10 |
12 |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
Rated flow coefficient Kv |
1.2 |
2 |
3.2 |
5 |
8 |
12 |
20 |
32 |
50 |
80 |
120 |
200 |
280 |
450 |
700 |
1100 |
Nominal pressurePN MPa |
1.6 4 6.4 |
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match DKZ actuator |
DKZ-4100 |
DKZ-4200 |
DKZ-4300 |
DKZ-5400 |
DKZ-5500 |
DKZ-5600 |
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Cepai Actuator
|
A+Z64 |
A+Z160 |
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Rated travel mm |
10 |
16 |
25 |
40 |
60 |
100 |
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Flow characteristics |
equal percentage linear |
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Function style |
Input signal increase, valve close or opposite
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Temperature range |
Normal temperature: -20 — +200 thermal fin type: -60 — +450 degree |
Note: Large size single-seat control valve can be customized according to user requirement.