SZAZP electric single-seat regulating valve

ZAZP electric single-seat valve is composed of DKZ series direct stroke electric actuator and through single-seat valve. It is powered by single-phase AC 220V power supply and accepts 0~10mA or 4~20mA DC signal to automatically control the opening of the regulating valve to achieve continuous adjustment of process parameters such as pressure, flow rate and liquid level of the fluid in the pipeline. The electric single-seat regulating valve has the characteristics of sensitive action, easy access to energy, rapid signal transmission, etc. Widely used in electric power, metallurgy, chemical industry, textile and other industrial automatic control system.
Inherent adjustable ratio R
30:1
Power supply
220V; 50~60Hz
Input signal
0~10mA 4~20mA DC

Nominal diameter DN (mm) G3/4 "20 25 32 40 50 65 80 100 125 150 200
Valve seat diameter DN (mm) 3 4 5 6 7 8 10 12 15 20 26 32 40 50 66 80 100 125 150 200
Rated flow coefficient Kv 0.08 0.12 0.2 0.32 0.5 0.8 1.2 2 3.2 5 8 12 20 32 50 80 120 200 280 450
Flow characteristics Straight line straight line, etc. %
Nominal pressure PN (MPa) 10 1.6, 4.0, 6.4
Connection type pipe thread connection G3/4 flange connection: PN1.6 according to JB79-59 standard; PN4.0 according to JB79-59 standard
With actuator model DKZ-310 DKZ-310 DKZ-310 DKZ-410 DKZ-410
Ejector thrust (N) 4000 4000 4000 6400 6400
Stroke L (mm) 10 10 16 25 40 60
Total travel time (S) 8 8 12.5 20 32 50
Mode of action Electrical open (K) commonly used; Electric off type (B)
Input signal 0~10mA 4~20mA DC
Power supply 220V; 50~60Hz
Inherently adjustable ratio R 30:1

Performance Indicators

Technical performance indicators of the project
Basic error % ≤±5
Return error % ≤3
Dead zone % ≤5
Leakage 0.01% x rated valve capacity
Rated flow coefficient error % ≤±10; When KV≤6.3, ≤±15

Applicable temperature range

Room temperature type cooling type

Valve material

Cast iron HT200 1.6-20 ~200 -
Cast steel ZG230~450 4.0, 6.4-40 ~ 250-40 ~450
Cast stainless steel ZG1Cr18Ni9Ti
ZG0Cr18Ni12Mo2Ti 4.0, 6.4-40 ~ 250-60 ~450