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Home> actuator >> accessories >> V230/V231 D12、13self-force pressure -adjusting valve (command device operate)
  • Product number:MC-000456004086
  • Product name:self-force pressure -adjusting valve (command device operate)
  • Product Type:V230/V231 D12、13
  • Product nameplate:SAIC
  • Project Category:actuator >> accessories >>
  • Manufacturer:Shanghai Automation Instrumentation Co., Ltd.
  • Sales unit: Shanghai Automation Instrumentation Marketing Center
  • Information download:Click to enter the download page  
  • Introduction
  • Specifications
Made up of Control valve, actuator and command device, need not external energy, just using pressure changes of media itself to automatic adjust pressure, used as pressure-controlling device of non-corrosive liquid、gas and steam. So widely used in oil、chemical、metallurgy、light industries and cities for heating.
Nominal  diameter DN(mm)
20
25
32
40
50
65
80
100
125
150
200
250
300
Rated flow coefficient  Kv
7
11
20
30
48
75
120
190
300
480
760
1100
1750
Rated travel L（mm）
8
10
14
20
25
40
50
60
70
Nominal pressure PN（MPa）
1.6、4.0
adjusting range of pressure （KPa）
15～50、40～80、60～100、80～140、120～180、160～220、200～260、
240～300、280～350、330～400、380～450、430～500、480～560、540～620、
600～700、680～800、780～900、880～1000、600～1500、1000～2500
Inherent flow characteristics
Quick open
adjusting accuracy （%）
±5
using temperature （℃）
≤350
Allowed leakage
 
Hard sealing
(1/h)
Single seat 
：≤10-4× rated capacity （Ⅳ）、 Seat and sleeve ：≤5×10-3 rated capacity （Ⅱ）
Soft sealing
(m1/min)
0.15
0.30
0.45
0.60
0.90
1.70
4.0
6.75
11.10
16.0
Ratio of pressure reducing
 
max
10
min
1.25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nominal  diameter mm
15
20
25
32
40
50
65
80
100
125
150
200
Rated flow coefficient Kvs
3.2
5
8
12.5
20
32
50
80
125
160
320
450
Nominal pressure MPa
1.6 ；4.0；6.4
Max working temperature  ℃
 
V230 V231
liquid≤140 ；gas≤80
hard sealing V230
with isolated tank≤200
With isolation tank and longer piece≤300
≤300with isolated tank and heat sink
Pressure balanced element
Bellows
Rolling diaphragm *
Flange standard
DIN (according to users’ requirements )
body material
PN16：cast iron（working temperature≤200℃） ；PN40：cast steel、cast stainless steel（working temperature≤300℃）
Spool material
stainless steel；Soft sealing is stainless steel rubber ring
 

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