Electronic Electric Cage-Type Control Valve (ZDLM) with electric actuator
Electronic Electric Cage-Type Control Valve (ZDLM)
Electronic Electric Cage Type Regulating Valve (ZDLM) with actuator

Electronic Electric Cage-Type Control Valve

  • Built-in servo amplifier, automatic valve positioning
  • DN25-DN300, -40°C to 450°C (up to 600°C on special order)
  • Linear / equal percentage flow characteristics, rangeability 30:1

Category

Overview

ZDLM electronic electric cage-type control valve consists of a PS series or 3610 series linear-stroke electric actuator and a low-resistance, straight-through, single-seat valve body (actuators of other brands can also be fitted). The electric actuator features an integrated electronic design with a built-in servo amplifier: once the control signal (4-20 mA DC or 1-5 V DC) and power supply are connected, the valve is positioned automatically, providing regulation of process parameters such as pressure, flow rate, liquid level and temperature. It offers quick response, simple wiring, high flow capacity, compact size and high regulating accuracy.

The cage-guided valve provides good stability, is resistant to vibration, offers low noise and low sensitivity to temperature. The single-seal version is suitable for clean media where tight leakage requirements apply and the differential pressure is moderate; the double-seal version suits clean media where leakage requirements are less stringent and the differential pressure is higher; the multi-hole throttling version can be used as a low-noise valve. Widely applied in electric power, metallurgy, chemical, petroleum, environmental protection, light industry and other industries.

Main Technical Parameters

Nominal Diameter (mm)
25
32
40
50
65
80
100
125
150
200
250
300
Seat Bore Diameter (mm)
26
32
40
50
66
80
100
125
150
200
250
300
Rated Flow Coefficient Kv Linear 11 17.6 27.5 44 69 110 176 275 440 690 1100 1760
Equal % 10 16 25 40 63 100 160 250 400 630 1000 1600
Nominal Pressure (MPa) 0.6, 1.6, 2.5, 4.0, 6.4
Stroke (mm) 16 25 40 60 100
Flow Characteristics Linear, equal percentage, quick opening
Working Temperature (°C) -40 ~ 230 (standard type); finned type 230 ~ 450 (medium temperature type); special order -100 ~ 600
Flange Dimensions In accordance with JB78-59, JB79-59, JB/79.1-94, JB, ANSI, JIS, DIN and other standards, manufactured to order
Body Material WCB (ZG230-450), ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti, CF8, CF8M
Trim Material 1Cr18Ni9, SS304, 0Cr18Ni12Mo2Ti, SS316, ZG1Cr18Ni9Ti
Body Type Straight-through cage-type cast globe valve
Bonnet Type Standard (normal temperature), finned (medium temperature), extended neck (low temperature)
Matching Electric Actuator Models PSL PSL-202 PSL-204 PSL-208 PSL-312 PSL-325
361L 361LSA-20 361LSB-30 361LSB-50 361LSC-65 361LSC-99
Explosion-proof 361LXA-20 361LXB-30 361LXB-50

Notes: 1. Valves with flange dimensions to ANSI, JPI and other international standards are available; the face-to-face dimension shall be determined as required. 2. For working temperature, nominal pressure or nominal diameter beyond the listed ranges, please contact us for a solution.

Actuator Technical Parameters

Model
Rated Output Force (N)
Speed (mm/s)
Technical Parameters
PSL
361L
PSL
361L
PSL
361L
PSL
361L
201 361LSA-08, 361LXA-08 1000 800, 800 0.25 4.2, 4.2 Power supply: AC220V 50Hz; Input signal: DC4-20mA, DC1-5V (shielded cable for signal wiring); Output signal: DC4-20mA; Protection class: IP67; With handwheel Power supply: AC220V 50Hz; Input signal: DC4-20mA, DC1-5V (shielded cable for signal wiring); Output signal: DC4-20mA; Protection class: equivalent to IP55; Explosion-proof marking: Exd II BT4; With handle
202 361LSA-20, 361LXA-20 2000 2000, 2000 0.50 2.1, 2.1
204 361LSB-30, 361LXB-30 4500 3000, 3000 0.50 3.5, 3.5
208 361LSB-50, 361LXB-50 8000 5000, 5000 1.00 1.7, 1.7
312 361LSC-65 12000 6500 0.60 2.8
325 361LSC-99 25000 10000 1.0 2.0

Performance Specifications

Item
Value
Basic Error (%) With 361L: 2.0; with PSL: 0.1
Hysteresis (%) 2.5
Dead Band (%) 1.0
Start/End Point Deviation (%) Signal-to-open Start point ±2.5
End point ±2.5
Signal-to-close Start point ±2.5
End point ±2.5
Rangeability 30:1
Rated Stroke Deviation (%) 2.5
Allowable Leakage (L/h) Single seal: in accordance with JB/T7387-94 Class IV, less than 10-4 of the rated flow capacity; double seal: in accordance with JB/T7387-94 Class III, less than 10-3 of the rated flow capacity

Allowable Differential Pressure

Nominal Diameter DN (mm)
25
40
50
65
80
100
150
200
250
300
Seat Bore (mm)
25
32
40
50
65
80
100
125
150
200
250
300
Actuator
Allowable Differential Pressure ΔP (MPa)
With PSL PSL-202 6.4

3.14

 6.4

1.92

 6.4

1.23

 5.1

0.78
PSL-204 4.31 2.76 1.76 6.4

1.04

 6.4

0.69

 5.62

0.44
PSL-208 1.86 1.23 0.78 6.4

0.50

 5.31

0.35

 3.97

0.20
PSL-320 1.26 0.87 0.49 6.4

0.32

 4.14

0.22
With 361L 361LSA-20 6.4

3.14

 6.4

1.92

 6.4

1.23

 6.4

0.78
361LSB-50 6.4

1.16

 6.4

0.76

 6.25

0.49
361LSC-65 6.4

0.64

 4.32

0.41

 3.23

0.28
361LSC-99 0.63 0.44 0.25 3.31

0.16

 0.27

0.11

Note: In each cell, the upper value is the allowable differential pressure for the double-seal version and the lower value for the single-seal version. The actual actuator configuration shall be determined according to the specific process parameters. If the allowable differential pressure is unclear or the maximum working differential pressure exceeds the listed ranges, please contact us.

Overall Dimensions

DN (mm)
25
40
50
65
80
100
150
200
250
300
L (mm) PN1.6 MPa 184 222 254 276 298 352 451 600 720 820
PN4.0 MPa 197 235 267 292 317 368 473 600 760 850
PN6.4 MPa 210 251 286 311 337 394 508 650 800 870
H1 (mm) 72 87 92 105 110 127 174 209 300 350
With PSL H (mm) Standard 750 765 767 845 857 875 1025 1045 1252 1545
Finned 900 930 937 1025 1042 1085 1285 1305 1805 1825
D (mm) 176 225
Weight (kg) 23.5 33.5 40.5 69 84 112 189 262 415 635
With 361L H (mm) Standard 513 650 652 770 782 800 1080 1125 1345 1365
Finned 663 815 822 950 967 1010 1340 1385 1625 1645
D (mm) 225 310
Weight (kg) 31 49 56 84 99 127 242 315 463 683

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