Pneumatic Mini-Flow Control Valve
Electric Mini-Flow Control Valve
Specification
| Body type: | straight through casting globe type |
|---|---|
| Spool type: | non-balanced single-seat plug type |
| Nominal size: | DN15, 20, 25, NPS 1/2〞~ 1〞 |
| Nominal pressure: | PN16 ~ 100 CLASS 150LB ~ 600LB |
| Connection: flange: | FF、RF、MF、RTJ |
| Welding: | SW、BW |
| Flange dimension: | acc. to IEC 60534 |
| Bonnet type: | （-45℃~ higher than 230℃ occasion） Low temperature extended type（-196℃~ -45℃） Bellow seal type Warm insulation Jacket type |
| Packing: | V type PFTE packing, flex. graphite packing, etc. |
| Gasket: | Metal graphite packing |
| Actuator: | pneumatic: multi-spring diaphragm actuator, piston type actuator. electric: 3810L series smart actuator, PSL series actuator. |
| Surface painting: | Green color, acrylic acid polyurethane ceramic paint. |
CODE
| Z | Actuator | H | Structure | Nominal pressure | Body material | Nominal size |
|---|---|---|---|---|---|---|
| Z series control valve | J: pneumatic diaphragm H: pneumatic piston R: electric 3810L D: electric PSL | Direct travel | W: standard min-flow WG: single seat with radiator WV: single seat with bellow seal WD: low-temperature single seat | PN16=16 CL150LB= 150 LB JIS10K=10K | C=WCB LC=LCB P=CF8 PL=CF3 R=CF8M RL=CF3M D= special material | DN25= DN25 NPS1= NPS1〞 |
| Such as: Z type pneumatic diaphragm min-flow control valve, pressure PN16，valve material WCB，nominal size DN50，type: ZJHW-16C DN50 | ||||||
| Flow characteristic | Linear, percentage, quick open |
|---|---|
| Allowable range | 30: 1 |
| Rated Cv value | CV 0.01~1.0 |
| Allowable leakage | Metal seal: IV grade（0.01% rated capacity） Leakage standard: GB/T 4213 |
| Type/Method | Pneumatic diaphragm actuator | Electric actuator |
|---|---|---|
| ZH23～ZH56 | 3810L series | |
| Multi-spring type | Intelligent integrated type | |
| Usage | Regulating type, an ON-OFF type | Regulating |
| Air supply pressure or Power supply voltage | Air supply pressure (Spring range) 140（20～100）Kpa G 240 (40～200) Kpa G 280 (80～240) Kpa G |
Power: AC 200V±10% 50Hz Or Power: AC 380V±10% 50Hz |
| Connector | Air pipe connector: RC1/4 | Normal type: cable inlet 2-PF(G1/2〞) Explosive proof type: can install protection jacket PF(G3/4〞) |
| Positive action | Pressure increase, stem descend, valve close. | Input signal increase, stem descend, valve close. |
| Negative action | Pressure increase, stem ascend, valve open. | Input signal increase, stem ascend, valve open. |
| Input signal | 40～20mA.DC（with positioner） | Input/output4～20mA.DC |
| Lag | ≤1%FS（with positioner） | ≤0.8%FS |
| Linear type | 2%FS（with positioner） | ≤+1%FS |
| Environmental temperature | -10℃～+70℃ | Standard type: -10℃～+60℃ With space heater: -35℃～+60℃ Explosive proof: -10℃～+40℃ |
| Surface coating | Green, acrylic acid polyurethane ceramic coating | Blue, acrylic acid polyurethane ceramic coating |
| Accessories | Electric-air (air-air) valve positioned, filter regulator, valve converter, solenoid valve, limited switch | Space heater (normal type) |
| Note: non-standard accessories, need special customized notes. | ||
| Rated flow coefficient, Cv | Percentage | 0.25 | 0.1 | 0.4 | 0.63 | 1.0 | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Linear | 0.01 | 0.04 | 0.1 | 0.16 | 0.25 | 0.1 | 0.4 | 0.63 | 1.0 | |
| Nominal size | Travel | Option flow coefficient, Cv（★confirm to IEC ●recommend） | ||||||||
| DN15 | 16mm | ● | ● | ● | ● | ● | ● | ★ | ★ | ★ |
| DN20 | ● | ● | ● | ● | ● | ● | ★ | ★ | ★ | |
| DN25 | ● | ● | ● | ● | ● | ● | ★ | ★ | ★ | |
| Pneumatic actuator | ZHA/B-22 | |||||||||
| Diaphragm effective area, Ae (cm2) | 350 | |||||||||
| Electric actuator | 3810L-08 | |||||||||
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- E-mail: valve@dtjt.com
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