Zrqm Series Intelligent Pressure Balance Electric Control Adjust Valve

Model NO.: Zrqm
Model NO.: Zrqm
Overview

ZRQM series intelligent electric control valve is a kind of pressure balanced regulating valve. Equipped with RQM series intelligent electric actuator, the overall structure is compact, light weight, good stability, high protection level. Therefore, it is widely used in large thermal power plants, chemical plants, water treatment and sewage treatment, natural gas, oil fields, iron and steel plants and other active regulation system.

Material for important parts

Valve body, valve cover: HT200, ZG230? 450, ZG1Cr18Ni9Ti
Valve core and valve seat: 1Cr18Ni9Ti, Ti Ti alloy surfacing
Valve stem, push rod: 2Cr13, 1Cr18Ni9Ti
Bushing: 2Cr13
Packing: PTFE, flexible graphite, stainless steel ripple

Important technical parameters

The important technical parameters of electric actuator
Output thrust: 44 ~ 550KN
(output adjustment thrust: 5.71 ~ 47.05KN)
(rated output closing thrust: 8.4 ~ 63.15KN)
The basic deviation of position control: (set travel time = 25 + 1% seconds)
Repeatability deviation: (set travel time more than 25 seconds) is less than or equal to 1%
Dead zone: adjustable from 0.1% to 9.9%
Output starting frequency of rated load: 1200 times / hour
Input flags: 4 to 20mA/100 ohms, 2 to 10mA/100 ohms, DC24V switching.
Power supply: 380 + 10%VAC, 50Hz
Relative humidity: less than 95%
Ambient temperature: -30 ~ +70
Explosion proof grade: Exd II BT4
Anti spread level: IP68
Photoelectric isolation is used in the input and output channels

Important technical parameters of regulating mechanism
 
nominal diaDN(mm)
(spool dia dn)		 20 25 32 40 50 65 80 100 125 150 200 250 300
(10) (12) (15) (20)
rated flow coeffiencient Kv linear 1.8 2.8 4.4 6.9 11 17.6 27.5 44 69 110 176 275 440 690 1100 1760
  1.6 2.5 4.0 6.3 10 16 25 40 63 100 160 250 400 630 1000 1600
rated stroke L(mm) 10 16 25 40 60 100
Inherent flow characteristics linear,equal percentage
Intrinsic adjustable ratio  R 50:1
License leakage hard valve seat:  IV grade,soft valve seat:  VI grade
nominal pressurePN(MPa) 1.6,4.0,6.4

working temperature t(ºC)

 room temperature -20~200,-40~250,-60~250
heat dissipation -40~450,-60~450
high temperature 450~560
low temperature -60~-100,-100~-200,-200~-250

Zrqm Series Intelligent Pressure Balance Electric Control Adjust Valve
Zrqm Series Intelligent Pressure Balance Electric Control Adjust Valve
  Overview

ZRQM series intelligent electric control valve is a kind of pressure balanced regulating valve. Equipped with RQM series intelligent electric actuator, the overall structure is compact, light weight, good stability, high protection level. Therefore, it is widely used in large thermal power plants, chemical plants, water treatment and sewage treatment, natural gas, oil fields, iron and steel plants and other active regulation system.

Material for important parts

Valve body, valve cover: HT200, ZG230? 450, ZG1Cr18Ni9Ti
Valve core and valve seat: 1Cr18Ni9Ti, Ti Ti alloy surfacing
Valve stem, push rod: 2Cr13, 1Cr18Ni9Ti
Bushing: 2Cr13
Packing: PTFE, flexible graphite, stainless steel ripple

Important technical parameters

The important technical parameters of electric actuator
Output thrust: 44 ~ 550KN
(output adjustment thrust: 5.71 ~ 47.05KN)
(rated output closing thrust: 8.4 ~ 63.15KN)
The basic deviation of position control: (set travel time = 25 + 1% seconds)
Repeatability deviation: (set travel time more than 25 seconds) is less than or equal to 1%
Dead zone: adjustable from 0.1% to 9.9%
Output starting frequency of rated load: 1200 times / hour
Input flags: 4 to 20mA/100 ohms, 2 to 10mA/100 ohms, DC24V switching.
Power supply: 380 + 10%VAC, 50Hz
Relative humidity: less than 95%
Ambient temperature: -30 ~ +70
Explosion proof grade: Exd II BT4
Anti spread level: IP68
Photoelectric isolation is used in the input and output channels

Important technical parameters of regulating mechanism
 
nominal diaDN(mm)
(spool dia dn)		 20 25 32 40 50 65 80 100 125 150 200 250 300
(10) (12) (15) (20)
rated flow coeffiencient Kv linear 1.8 2.8 4.4 6.9 11 17.6 27.5 44 69 110 176 275 440 690 1100 1760
  1.6 2.5 4.0 6.3 10 16 25 40 63 100 160 250 400 630 1000 1600
rated stroke L(mm) 10 16 25 40 60 100
Inherent flow characteristics linear,equal percentage
Intrinsic adjustable ratio  R 50:1
License leakage hard valve seat:  IV grade,soft valve seat:  VI grade
nominal pressurePN(MPa) 1.6,4.0,6.4

working temperature t(ºC)

 room temperature -20~200,-40~250,-60~250
heat dissipation -40~450,-60~450
high temperature 450~560
low temperature -60~-100,-100~-200,-200~-250

Zrqm Series Intelligent Pressure Balance Electric Control Adjust Valve
Zrqm Series Intelligent Pressure Balance Electric Control Adjust Valve
 

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