ZHM Type Sleeve Type Control Valve
ZHM single level sleeve type control valve with high stability, easy maintenance and wide application. It can be designed as balance type for eliminate static unbalance, with damping effect, reduce valve vibration, can be applied in occasion with large pressure difference, can apply with multi-spring pneumatic diaphragm actuator or electric actuator, etc.
Pneumatic Sleeve Type Control Valve
Electric Sleeve Type Control Valve
Specification
| Body type: | straight through globe type |
|---|---|
| Spool type: | non-balanced single seat plug type |
| Nominal size: | DN25~300 NPS 1〞~ 12〞 |
| Nominal pressure: | PN16 ~ 100 CLASS 150LB ~ 600LB |
| Connection: flange: | FF、RF、MF、RTJ |
| Welding: | SW、BW |
| Flange dimension: | acc. to IEC 60534 |
| Bonnet type: | Standard type（-5℃~230℃） Radiator type: （-45℃~ higher than230℃ occasion ） Low temperature extended type(-196℃~ -45℃） Bellow seal 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 polyurthene ceramic paint. |
Code
| Z | Actuator | H | Structure | Nominal pressure | Body material | Nominal size |
|---|---|---|---|---|---|---|
| Z series control valve | J: pneumatic diaphragm actuator H: pneumatic piston actuator | H direct travel | M: standard sleeve type MF: soft sealing sleeve ML: Single level cage type MT: Two level cage type MG: sleeve type control valve with radiator MV: sleeve type with bellow seal MD: low temperature sleeve type | PN16=16 CL150LB=150 LB JIS10K=10K | C=WCB LC=LCB P=CF8 PL=CF3 R=CF8M RL=CF3M D=special material | DN25= DN252 NPS1〞= NPS 1〞 |
| Such as: Z type pneumatic diaphragm sleeve type control valve, pressurePN16，valve body WCB，nominal size DN50，type: ZJHM-16C DN50 | ||||||
Performance
| Flow characteristic | Linear, percentage, quick open | ||
|---|---|---|---|
| Allowable range | 50: 1 | ||
| Rated Cv value | Percentage CV10~1400 ，linear CV11~1500 | ||
| Allowable leakage | Metal seal: II grade（0.5% rated capacity）soft seal: V grade | ||
| Performance | Pneumatic | Electric | |
| Allowable tolerance, % | ±1.5 | ±1.0 | |
| Return difference, % | ≤1.5 | ≤1.0 | |
| Dead zone, % | ≤0.6 | ≤1.0 | |
| The difference from beginning to endpoint, % | ±2.5 | ±2.5 | |
| Rated travel difference, % | ≤2.5 | ≤2.5 | |
Note: specification on the basis of the control valve with positioned and PTFE packing.
Special specification
| 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 |
Actuator
| 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 coating | Blue, acrylic acid polyurethane coating |
| Accessories | E/P, P/P valve positioned, filter regulator, valve converter, solenoid valve, limited switch | Space heater (normal type) |
| Note: non-standard types should have special notice. | ||
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