Pneumatic Eccentric Rotary Control Valve | Electric Eccentric Rotary Control Valve
ZRP type Eccentric rotary control valve Introduction
ZRP eccentric rotary valve ( CAM deflection control valve), consisted of the actuator and eccentric rotary valve, is a kind of angle trip control valve which composes with partly ball valve plate deflection, eccentric rod rotary to control building. Rotary center of valve disk not concentric with a rotary rod can reduce wear and prolong service life. Disk back set a contra-vane is an advantage for field stability flow and good stable. Secondly, large flow, adjustment scope wide and other features. It is used widely in petroleum, chemical, electric, metallurgy, steel, papermaking, medical, food, spinning, light industry, and other industry.
Pneumatic Eccentric Rotary Control Valve
Electric Eccentric Rotary Control Valve
Standard Specification
| Body type: | Straight casing eccentric ball type valve |
|---|---|
| Spool type: | Eccentric bow globe ball body |
| Nominal size: | DN50 ~300 NPS 2〞~12〞 |
| Nominal pressure: | PN16 ~40 CLASS 150LB ~300LB |
| Connection: flange: | FF, RF, RTJ, Wafer type and so on. |
| Bonnet type: | Whole type |
| Packing: | V type PTFE, Flexible graphite |
| Seal gasket: | Metal+graphite |
| Actuator: | Pneumatic : pneumatic piston actuator, pneumatic diagragm actuator |
| Electric: | DTR series, 3810 series |
| Surface painting: | Green color, acrylic acid polyurthene ceramic paint. |
Model Establishment
| Z | Actuator | R | Structure type | Nominal pressure | Body material | Nominal diameter |
|---|---|---|---|---|---|---|
| Z series control valve | S: pneumatic piston J: pneumatic diagragm A: Electric DTR series R: Electric 3810 series | R Rotary | P:Standard full cavity rotary PF: Soft seal eccentric Rotary RP: reduced chapter eccentric rotary | PN16=16 CL150LB= 150 LB | C=WCB LC=LCB P=CF8 PL=CF3 R=CF8M RL=CF3M D= Special material | DN50= DN50 NPS2〞=NPS2〞 |
| Example: Pneumatic piston eccentric rotary control valve,pressure PN16, Body material WCB, Nominal diameter DN50, Model: ZSRP-16C DN50 | ||||||
| Flow characteristic | Approximation percentage | |
|---|---|---|
| Adjustment scope | Full chamber type 100:1 Shrinkage chamber type 40：1 | |
| Rated CV | Full chamber type CV 14~1750 Shrinkage chamber type CV 6-700 | |
| Travel | Full open 60° | |
| Allowable leakage | Hard seal: IV（0.01% valve rated capacity）, soft seal: VI（Bubble level） | |
| Intrinsic error % | Pneumatic type ±2 | Electric-type ±2.0 |
| Hysteresis % | Pneumatic type ≤1.5 | Electric-type ≤1.0 |
| Dead zone% | Pneumatic type ≤0.6 | Electric-type ≤1.0 |
| Note: Parameters in the performance sheet is based on the control valve with positioner and PTFE packing. | ||
| Nominal diameter DN（mm） | 25 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated flow coefficient Cv | Full chamber type | 14 | 30 | 55 | 100 | 135 | 230 | 320 | 500 | 850 | 1300 | 1750 |
| Shrinkage chamber type | 6 | 12 | 20 | 40 | 54 | 92 | 128 | 200 | 340 | 520 | 700 | |
| Double action pneumatic actuator | Air supply pressure 400KPa | |||||||||||
| Model | Torque（N.M） | PTFE packing, metal seal allow differential pressure | ||||||||||
| ATD63 | 23.5 | 2.35 | 0.94 | |||||||||
| ATD75 | 46.5 | 5.0 | 2.84 | 1.49 | 0.57 | 0.33 | ||||||
| ATD88 | 73.2 | 2.39 | 0.99 | 0.62 | ||||||||
| ATD100 | 106 | 1.54 | 0.99 | 0.30 | 0.19 | |||||||
| ATD125 | 221 | 1.29 | 0.80 | 0.39 | ||||||||
| ATD160 | 453 | 2.84 | 1.79 | 0.89 | 0.47 | 0.26 | 0.14 | |||||
| Single action pneumatic actuator | Air supply pressure 400KPa | |||||||||||
| Model | torque（N.M） | PTFE packing, metal seal allow differential pressure | ||||||||||
| ATS75 | 26.5 | 0.19 | ||||||||||
| ATS88 | 44 | 1.19 | 0.09 | |||||||||
| ATS100 | 60.7 | 3.97 | 1.59 | 0.81 | 0.11 | |||||||
| ATS125 | 126 | 2.19 | 0.89 | 0.59 | ||||||||
| ATS160 | 269 | 1.39 | 0.53 | 0.34 | ||||||||
| ATS200 | 467 | 2.84 | 1.79 | 0.89 | 0.47 | 0.26 | 0.14 | |||||
| Electric actuator | ||||||||||||
| Model | Torque（N.M） | PTFE packing, metal seal allow differential pressure | ||||||||||
| 3810R-10 | 100 | 10 | 7.5 | 4.0 | ||||||||
| 3810R-30 | 300 | 5 | 4.5 | 2.3 | 2.1 | 1.9 | ||||||
| 3810R-50 | 500 | 1.0 | 0.6 | 0.4 | ||||||||
| Model/Style | Pneumatic piston actuator | Full electronic type electric actuator |
|---|---|---|
| AT Series | 3810R Series | |
| Single action, Double action | Built-in control box type intelligent integration | |
| Usage | Adjustment, on-off | Adjustment |
| Air supply pressure or supply voltage | Air supply pressure ( spring scope) 400 Kpa G | Power: AC 200V±10% 50Hz Or power: AC 380V±10% 50Hz |
| Connector | Air tube adapter: RC1/4 | Normal type: Cable intake 2-PF(G1/2〞) Exd: it can be installed protective sleeve PF(G3/4〞 |
| Direct action | Gas pressure increase disk anti-clockwise rotation, valve close | Input signal increase disk anti-clockwise rotation, valve close |
| Reaction | Gas pressure increase disk clockwise rotation, valve open | Input signal increase disk clockwise rotation, valve open |
| Input signal | 40～20mA.DC（with E/P positioner） | Input/putout4～20mA.DC |
| Lag | ≤1%FS（with positioner） | ≤0.8%FS |
| Linearity | 2%FS（with positioner） | ≤+1%FS |
| Working temperature | -10℃～+70℃ | Standard type: -10℃～+60℃ With spacer heater: -35℃～+60℃ Exd type: -10℃～+40℃ |
| Coating | Green, acrylic polyurethane enamel | Blue, acrylic polyurethane enamel |
| Option parts | Electric-Pneumatic (Pneumatic-pneumatic)valve positioner,LFT,Valve position transmitter,solenoid valve,limited switch | Space heater (normal type) |
| Note: Not standard configuration, need to be stated before order. | ||
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