Pneumatic Adjustment Type Butterfly Valve | Electric Adjustment Type Butterfly Valve
What is a High Performance Adjustable Butterfly Valve?
ZRD Type High-Performance Adjustable Butterfly Valve, adopting intelligent control, can adopt an electric or pneumatic actuator to realize the adjustment of pressure, flow, temperature, liquid level. It has compact structure, strong function, small volume, good seal, good performance, simply assort, large flow and other features to be suited for slabby, including partial, fiber medium. It is suitable for the automatic control system of food, environmental protective, light industry, petroleum, paper marking, chemical, teaching, and scientific research equipment, electric and other industries now.
PRODUCT DETAILS
Pneumatic Adjustment Type Butterfly Valve
Electric Adjustment Type Butterfly Valve
Standard Specification
| Body type: | Flat casting molding |
|---|---|
| Disk type: | Triple eccentric butterfly |
| Nominal diameter: | DN50 ~600 NPS 2〞~24〞 |
| Nominal pressure: | PN16—64 Class 150LB |
| Connection: flange: | Flange, Wafer |
| Bonnet type: | Whole piece |
| Packing: | V type PTFE, Flexible graphite |
| Seal gasket: | Metal clip graphite |
| Actuator: | Pneumatic : Pneumatic: Pneumatic piston actuator, pneumatic diaphragm actuator Electric: DTR series, 3810 series |
| Electric: | DTR series, 3810 series |
| Surface painting: | Green color, acrylic acid polyurthene ceramic paint. |
Model Established
| Z | Actuator | R | Structure type | Nominal pressure | Body material | Nominal diameter |
|---|---|---|---|---|---|---|
| Z series control valve | S: Pneumatic piston J: pneumatic diaphragm D:Electric DTR series R: Electric 3810 series | R Rotary | D: Standard type hard seal adjustment DF: Soft seal adjustment | PN16=16 CL150LB= 150 LB | C=WCB LC=LCB P=CF8 PL=CF3 R=CF8M RL=CF3M D=Special material | DN50= DN50 NPS2〞=NPS2〞 |
| Such as Pneumatic piston hard seal adjustment butterfly valve, Pressure PN16, Body material WCB, Nominal diameter DN100.Type is ZSRD-16C DN100 | ||||||
Performances
| Flow characteristic | Approximate equal percentage | |
|---|---|---|
| Adjustable range | 50:1 | |
| Rated CV figure | Full chapter CV 85~20500 | |
| Travel | Full open 90° Adjustment 0-70° | |
| Allowance leakage | Hard seal: IV（0.01% Valve rated volume） Soft seal: VI（Bubble classs） | |
| intrinsic error % | Pneumatic ±2 | Electric ±2.0 |
| Hysteresis % | Pneumatic ≤1.5 | Electric ≤1.0 |
| Dead zone % | Pneumatic ≤0.6 | Electric ≤1.0 |
| Note: Parameters in the performance sheet are based on the control valve with positioner and PTFE packing. | ||
Selected parameter
| Nominal diameter DN（mm） | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated flow series Cv | 85 | 180 | 240 | 390 | 690 | 1000 | 1760 | 3390 | 4730 | 6700 | 8900 | 10500 | 14800 | 20500 |
| PTFE packing, metal seal allow different pressure Unit: MPa | ||||||||||||||
| Double action pneumatic actuator | 1.45 | 0.54 | 0.79 | 0.42 | 0.34 | 0.1 | 0.27 | 0.17 | 0.12 | 0.19 | 0.11 | 0.04 | ||
| Single action pneumatic actuator | 0.82 | 0.38 | 0.5 | 0.44 | 0.33 | 0.19 | 0.38 | 0.16 | 0.14 | 0.14 | 0.12 | 0.11 | ||
Actuator
| Model/ Type | Pneumatic piston actuator | Full electric type electric actuator |
|---|---|---|
| At series | 3810R series | |
| Single action, double action | Built-in control box type intelligent integration | |
| Usage | Adjustable, on-off | Adjustable |
| Air supply pressure or supply electric voltage | Supply gas pressure( spring scope) 400 Kpa G | Power: AC 200V±10% 50Hz Or power: AC 380V±10% 50Hz |
| Connector | Gas tube connector气管接头：RC1/4 | Normal type: wire intake 2-PF(G1/2〞) Exd: Installing 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 |
| Re-action | Gas pressure increase disk clockwise rotation, valve open | Input signal increase disk clockwise rotation, valve open |
| Input signal | 40～20mA.DC（with electric pneumatic valve positioner） | Input /output: 4～20mA.DC |
| lag | ≤1%FS（with positioner） | ≤0.8%FS |
| Linearity | 2%FS（with positioner） | ≤+1%FS |
| Working temperature | -10℃～+70℃ | Standard: -10℃～+60℃ With spacer heating: -35℃～+60℃ Exd: -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 ordering. | ||
