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November  22 , 2019  Friday
Home> pneumatic valve >> ZXNpneumatic double-seat adjusting valve
  • Product number:MC-000000004462
  • Product name:pneumatic double-seat adjusting valve
  • Product Type:ZXN
  • Product nameplate:SAIC
  • Project Category:pneumatic valve >>
  • Manufacturer:Shanghai Automation Instrumentation Co., Ltd.
  • Sales unit: Shanghai Automation Instrumentation Marketing Center
  • Information download:Click to enter the download page  
  • Introduction
  • Specifications
ZXP pneumatic single-seat adjusting valve, ZXN pneumatic double-seat adjusting valve, ZXM pneumatic sleeve adjusting valve are the important products of pneumatic adjusting valve, use top-guide structure, equipped with multi-spring actuator. Impact structure, light weight, flexible action, S-type streamline channel, small loss of pressure drop, large capacity, precise flow characteristics, convenient assembly. Widely used for controlling gas, liquid, processing parameters, like pressure, flow, temperature, liquid, keep them at the given value. This series of product contain standard, adjusting cut-off, bellows sealing, jacket insulation; nominal pressure: PN10、16、40、64; nominal diameter: DN20~400, fluid temperature: -200℃~560℃; leakage level: IV level or VI level; flow characteristics: linear or equal percentage
Nominal diameter  mm
20
25
40
50
65
80
100
150
200
250
300
350
400
Diameter of valve seat  mm
10
12
15
20
25
32
40
50
65
80
100
125
150
200
250
300
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Rated flow coefficient Kv
Straight line
1.8
2.8
4.4
6.9
11
17.6
27.5
44
69
110
176
275
440
690
1000
1600
Equal percentage
1.6
2.5
4
6.3
10
16
25
40
63
100
160
250
400
630
900
1440
Nominal pressure MPa
0.6\1.6\4.0\6.4
Travel  mm
10
16
25
40
60
100
 
 
Flow characteristics
Straight line、equal percentage 、quick open
Media temperature ℃
-15~200(normal temperature )、-40~+250、-40~+450(medium temperature )、-100~+200(low temperature )
Flange size
Cast iron flange size JB78、cast steel flange size JB79
Flange size
Sealing surface of flange JB77,cast iron flange is smooth, cast steel flange is concave
Material of valve body
PN
(MPa)
0.6,1.6
HT200、WCB(ZG230-450)
4.0,6.4
WCB(ZG230-450)、ZG1Cr18Ni9Ti、ZG0Cr18Ni12Mo2Ti
Material of valve spool
1Cr18Ni9、0Cr18Ni12Mo2Ti
Upper cover
General (normal temperature )、heat sink(medium temperature)、low temperature
Adjustable ratio  R
50:1
Connector of air supply
M16×1.5
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