Pneumatic flow control valve automatically regulates steam proportional temperature and pressure

Pneumatic flow control valve automatically regulates steam proportional temperature and pressure

Short Description:

The ZDLP electric single-seat control valve is suitable for applications requiring strict leakage control, low pressure differential across the valve, and handling media with certain viscosity. It is widely used in industries such as power, metallurgy, chemical engineering, petroleum, environmental protection, light industry, and equipment manufacturing.


Product Detail

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QC

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Product Tags

ZDLP Type Electronic Electric Single-Seat Control Valve is composed of PSL series and 3810 series electronic actuators combined with a single-seat control valve. Powered by 220V AC 50Hz, it integrates a servo amplifier, position signal generator, position limit switch, and valve position display. It directly accepts output signals from industrial control instruments or computers (4-20mADC or 1-5VDC) to control valve opening, enabling regulation of medium pressure, flow, temperature, etc. Meanwhile, it can output valve position feedback signals (4-20mADC or 1-5VDC). The valve body features a low-flow-resistance straight-through single-seat upper-guided structure, offering advantages of high precision, large flow capacity, and minimal leakage. Its control accuracy and performance are significantly improved compared to the DKZ type.

 

Nominal diameter DN (mm) (Valve seat diameterdn) 20 25 32 40 50 65 80 100
  -10 -12 -15 -20              
Rated Flow Coefficient Kv Straight line 1.8 2.8 4.4 6.9 11 17.6 27.5 44 69 110 176
  Equal percentage 1.6 2.5 4 6.3 10 16 25 40 63 100 160
 Rated stroke L(mm) 10 16 25 40
Nominal pressure PN(MPa) 1.6、4.0、6.4
 Inherent flow characteristic Straight line, equal percentage
 Inherent turndown ratio R 50:01:00
Allowable leakage Single seat Hard seal: Class Ⅳ
Soft seal: Class Ⅵ
  Sleeve Hard seal: Class Ⅱ
Soft seal: Class Ⅵ
 Operating temperature t(℃) -20~200、-40~250、-40~450、-60~450
 Signal range (mA.DC) 0~10、4~20
 Power supply voltage 220V、50Hz
 Acting mode At fault: fully closed, fully open, self-locking position

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