|
Nominal diameter (mm)
|
20
|
25
|
40
|
50
|
65
|
80
|
100
|
150
|
200
|
adjustable ratio（R)
|
50:1
|
|
Rated flow coefficient
(KV)
|
straight line
|
1.8
|
2.8
|
4.4
|
6.9
|
11
|
17.6
|
27.58
|
44
|
69
|
110
|
176
|
275
|
440
|
690
|
Ambient temperature
|
-40∽+85
|
|
Equal percentage
|
1.6
|
2.5
|
4
|
6.3
|
10
|
16
|
25
|
40
|
63
|
100
|
160
|
250
|
400
|
630
|
control signal
|
4∽20mA.DC;20∽100KP2
|
|
Rated distance(mm)
|
16
|
25
|
40
|
60
|
Inerinsic error
|
Without locator ±5%;With locator±1.5%
|
|
Supplementary executor
|
|
|
|
|
Repeatability
|
Without locator3%;With locator1%
|
|
Effective area of the film(cm2)
|
350
|
560
|
900
|
Dead band
|
Without locator1%;With locator0.8%
|
|
Flow property
|
Straingt line;Equal percentage
|
Leakage rate
|
According to Grade IVin the table GB/T4213
|
|
Nominal pressure（KPa）
|
(0.6);1.6;(4.0);6.4;ANSI150LbRF;330Lb.RF
|
Valve body
|
ZG230-450;ZGICR18Ni9;ZG0CR17Ni12
|
|
Temperature of utilization(℃）
|
-20∽+200;-40∽+250;-40∽+450;-60∽+450
|
spool
|
ICR18Ni9Ti;OCR17Ni12Mo2
|
|
Range of spring（KPa）
|
20∽100;(40∽200);(80∽240);(20∽60);(60∽100)
|
Valve seat
|
1CR18Ni9Ti
|
|
Pressure of air supply(KPa)
|
0.14;(0.25);(0.4)
|
stuffing
|
Polytetrafluoroethglene;Flexibce graghite
|
|
Size of gas path fitting
|
Internal thread M10*1
|
diaphragm
|
Nitrile rubbdr
|
It is
especially fit for the autoatic control system of the� ��various industries
like petroleum,electricity,etc.This valve ��is a new generation of pneumatic
straight exquisite���� ��regulating valve.It has two types:the single
valve and��� ��jacket valve, which are a combination of newtype multispring
��actuator and low flow frsistance straight valve.It has the ��property
of a considerably big flow coefficient and accurate ��quantity of flow.
