ZDSY electric Y type trap
ZDSY-type electric Y-type trap is composed of a new series of electric actuators and Y-type traps. The two ends of the Y-type trap body are welded. The actuator has two forms of electric opening and electric closing: when the input signal increases, the valve gradually turns from the closed position to the open position for the electric opening type. When the input signal increases, the valve gradually changes from the open position to the closed position.
Principle:
The electric trap receives the current signal input from the regulating instrument, and generates axial thrust through the action of the electric actuator. Through the connecting rod, the flow area of the valve core and the valve seat is changed until the electric actuator is the position feedback signal current and the input Signal current, etc., so as to achieve automatic adjustment of process parameters.
Specifications and technical parameters
Nominal diameter DN(mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
flow coefficient | 5 | 8 | 12 | 17 | 29 | 43 | 70 | 110 |
Rated stroke (mm) | 16 | 25 | 40 | |||||
Nominal pressure PN | 150Lb(2.0MPa)300Lb(5.0MPa)600Lb(10MPa)900Lb(15MPa)1500Lb(25.0MPa) | |||||||
Working temperature t(℃) | -20~425 ℃ | |||||||
Signal range | 40~20mADC 200VAC 380VAC | |||||||
Power | 220VAC 50HZ 380VAC 50HZ 60HZ | |||||||
Allowable leakage (1/R) | approximately 0 leakage | |||||||
Sensitivity | ±(0.5~5%)F.S |
Main parts material
Part Name | Materials |
Valve body | ZG270-500 ZG1Cr18Ni9Ti |
Bonnet | 45 steel 1 Cr18Ni9Ti |
Stem, push rod | 1Cr18Ni9Ti |
Valve core, valve seat | Surfacing of Stele alloy on 1Cr18Ni9Ti body |
Packing | textile flexible graphite |
Gasket | High-mesh flexible graphite with 316 wire |
Note: The above materials are commonly used, and the specific grades are subject to the order contract.
Dimensions and weight
Nominal diameter DN(mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
Qualified pressure | 300Lb | 300Lb | 300Lb | 300Lb | 300Lb | 300Lb | 300Lb | 300Lb |
L | 272 | 272 | 272 | 272 | 272 | 272 | 300 | 300 |
L1 | 179 | 179 | 179 | 179 | 179 | 179 | 190 | 190 |
ØA | 177 | 177 | 177 | 177 | 177 | 182 | 182 | 182 |
H | 569 | 569 | 569 | 591 | 591 | 638 | 638 | 638 |
D1 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
D2 | 25 | 32 | 38 | 45 | 57 | 76 | 90 | 109 |