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 |
| 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