4~20mA Sleeve type high pressure electric control valve
4~20mA Sleeve type high pressure electric control valve
4~20mA Sleeve type high pressure electric control valve specification
| Electric control valve Body type: |
straight through casting globe type |
| Spool type: | balanced sleeve plug type |
| Nominal size: | DN25~400,、 NPS 1〞~ 16〞 |
| Nominal pressure: | PN16 ~ 100、 CLASS 150LB ~ 600LB |
| Connection: flange: | FF、RF、MF、RTJ |
| Welding: | SW、BW |
| Flange dimension: | According to to IEC 60534 |
| ZAZM Sleeve electric 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. |
4~20mA Sleeve type high pressure electric control valve material list
| 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 |
4~20mA Sleeve type high pressure electric control valve performance
| 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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| ZAZM Sleeve electric 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 | |
4~20mA Sleeve type high pressure electric control valve special requirement
| 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 |
4~20mA Sleeve type high pressure electric control valve actuator Parameter
| Electric control valve Type\ Method | Electric actuator |
| 3810L 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. |
4~20mA Sleeve type high pressure electric control valve parameter
| Nominal diameterDN | 25 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
| Rated flow coefficient Kv | 11/10 | 27/25 | 44/40 | 69/63 | 110/100 | 176/160 | 275/250 | 440/400 | 690/630 | 940/850 | 1200/1050 | 1400/1225 | 1600/1400 |
| Nominal pressurePN MPa | 1.6 4 6.4 | ||||||||||||
| match DKZ actuator | DKZ-4200 | DKZ-4300 | DKZ-5400 | DKZ-5500 | DKZ-5600 | ||||||||
| match Cepai actuator | A+Z64 | A+Z160 | |||||||||||
| Rated travel mm | 16 | 25 | 40 | 60 | 100 | ||||||||
| Flow characteristic | Equal percentage linear | ||||||||||||
| Action mode | Input signal increase, valve close or opposite | ||||||||||||
| Temperature range | Normal temperature:-20～200℃ thermal Fin type:-60～450℃ | ||||||||||||
Note: Large size single-seat control valve can be customized according to user requirement
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