Professional valve equipment supplier
design and manufacturing
FLANGE END DOUBLE ORIFICE STANDARD AIR VALVE
Scope Of
Application:
|
norminal pressure
|
1.6MPa
|
|
shell
|
2.4MPa
|
|
seat
|
1.76MPa
|
|
suitable medium
|
water
|
|
temperature
|
＜ 100°C
|
Technical Requirement:
1.Design, manufacture conforms
to JKR20200-0043-99.
2.Flange drilled conforms to BS EN 1092.
|
size
|
D
|
D1
|
D2
|
B
|
f
|
n-d
|
|
40
|
150
|
110
|
84
|
19
|
3
|
4-19
|
|
50
|
165
|
125
|
99
|
19
|
3
|
4-19
|
|
65
|
185
|
145
|
118
|
19
|
3
|
4-19
|
|
80
|
200
|
160
|
132
|
19
|
3
|
8-19
|
|
100
|
220
|
180
|
156
|
19
|
3
|
8-19
|
|
125
|
250
|
210
|
184
|
19
|
3
|
8-19
|
|
150
|
285
|
240
|
211
|
19
|
3
|
8-23
|
|
200
|
340
|
295
|
266
|
20
|
3
|
12-23
|
|
250
|
405
|
355
|
319
|
22
|
3
|
12-28
|
|
300 |
460
|
410
|
370
|
24.5
|
4
|
12-28
|
|
34
|
float ball
|
plastic ABS
|
ISO 2580
|
ISO 2580
|
|
33
|
small orifice gasket
|
EPDM
|
BS2494 Type W
|
|
|
32
|
washer
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
31
|
bolt
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
30
|
nut
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
29
|
ball seal small orifice
|
EPDM
|
BS2494 Type W
|
|
|
28
|
air release nipple
|
plastic ABS
|
ISO 2580
|
ISO 2580
|
|
27
|
small orifice cover
|
ductile iron
|
BS2789 Gr500-7
|
GB1348 QT500-7
|
|
26
|
O-ring
|
EPDM
|
BS2494 Type W
|
|
|
25
|
washer
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
24
|
bolt
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
23
|
nut
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
22
|
middle orifice cover
|
ductile iron
|
BS2789 Gr500-
|
GB1348 QT500-7
|
|
21
|
cap
|
ductile iron
|
BS2789 Gr500-7
|
GB1348 QT500-7
|
|
20
|
bolt
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
19
|
O-ring
|
EPDM
|
BS2494 Type W
|
|
|
18
|
stem
|
stainless steel
|
BS970 410S21
|
GB1220-92 1Cr13
|
|
17
|
support of stem
|
ductile iron
|
BS2789 Gr500-7
|
GB1348 QT500-7
|
|
16
|
stem nut
|
cast bronze
|
BS 1400 LG2
|
GB1176-87 ZCuSn5Pb5Zn5
|
|
15
|
disc
|
ductile iron
|
BS2789 Gr500-7
|
GB1348 QT500-7
|
|
14
|
bolt
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
13
|
washer(pressed board）
|
ductile iron
|
BS2789 Gr500-7
|
GB1348 QT500-7
|
|
12
|
disc seat ring
|
EPDM
|
BS2494 Type W
|
|
|
11
|
body seat ring
|
cast bronze
|
BS 1400 LG2
|
GB1176-87 ZCuSn5Pb5Zn5
|
|
10
|
dust cap
|
ductile iron
|
BS2789 Gr500-7
|
GB1348 QT500-7
|
|
9
|
washer
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
8
|
washer
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
7
|
nut
|
steel
|
BS970 43A
|
GB700-88 Q235
|
|
6
|
large orifice cover
|
ductile iron
|
BS2789 Gr500-7
|
GB1348 QT500-7
|
|
5
|
ball seal large orifice
|
EPDM
|
BS2494 Type W
|
|
|
4
|
ball seal large orifice
|
EPDM
|
BS2494 Type W
|
|
|
3
|
flaot ball
|
plastic ABS
|
ISO 2580
|
ISO 2580
|
|
2
|
screw
|
plastic ABS
|
ISO 2580
|
ISO 2580
|
|
1
|
body
|
ductile iron
|
BS2789 Gr500-7
|
GB1438 QT500-7
|
|
NO.
|
Name of part
|
Material
|
British standard
|
Chinese standard
|
YanTai HJ valve Co.,Ltd;
TEL：0535-6368017
Add：NO19.XINGYUANG XI ROAD.FUSHAN.YANTAI.CHINA
