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GDQ Pneumatic High Vacuum Flapper Valve
GDQ pneumatic high vacuum flapper valve uses solenoid directional valve to change the direction of air passage, and controls the actuating cylinder to drive the valve opened and closed. It is used to put through or cut off the airflow in vacuum pipeline. Applicable medium can be pure air and noncorrosive gases.
With signal feedback device.
Ö÷Òª¼¼ÊõÐÔÄÜ
Main Technical Performance
¡¡ÊÊÓ÷¶Î§£ºApplicability |
¡¡105¡«1.3¡Á10-4Pa(Öá·âΪÏð½º) 105¡«1.3¡Á10-5Pa(Öá·âΪ²¨ÎƹÜ) |
¡¡·§ÃÅ©ÂÊ£ºValve Leak Rate |
¡¡¡Ü1.3¡Á10-4Pa.L/S.(Öá·âΪÏð½º) ¡Ü1.3¡Á10-5Pa.L/S.(Öá·âΪ²¨ÎƹÜ) |
¡¡ÊÊÓÃζȣºApplicable Temperature |
¡¡-25¡«+80¡æ(¶¡ëæÏð½º) -30¡«+150¡æ(·úÏð½º) |
¡¡ÆøÔ´Ñ¹Á¦£ºAnnoy pressure | ¡¡0.4¡«0.6MPa |
Ö÷ÒªÁã¼þ²ÄÁÏ
Materials of Main Parts
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ÃÜ·â¼þ£º¶¡ëæÏ𽺡¢·úÏ𽺡¢²¨ÎƹÜ(Öá·â)¡£
Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel
Sealing element: NBR, Viton, bellows(shaft seal)
ÍâÐμ°Á¬½Ó³ß´ç(mm)
Overall and Connection Dimensions(mm)
Model
ÐͺŠ|
DN
|
D1
|
D
|
A
|
H
|
B
|
W
|
·¨À¼±ê×¼
|
GDQ-J10(b)
|
10
|
12.2
|
30
|
30
|
120
|
52
|
40
|
GB4982
|
GDQ-J16(b)
|
16
|
17.2
|
30
|
40
|
140
|
58
|
40
|
|
GDQ-J25(b)
|
25
|
26.2
|
40
|
50
|
150
|
58
|
40
|
|
GDQ-J32(b)
|
32
|
34.2
|
55
|
58
|
158
|
58
|
40
|
|
GDQ-J40(b)
|
40
|
41.2
|
55
|
65
|
183
|
75
|
50
|
|
GDQ-J50(b)
|
50
|
52.2
|
75
|
70
|
190
|
75
|
50
|
