Air Valve
Classify
PQ-16
FLANGE END AND SCREW END AIR VALVE
Scope Of Application：
| norminal pressure | 1.6MPa |
| shell pressure | 2.4MPa |
| seat pressure | 1.76MPa |
| suitable medium | water |
| temperature | ＜ 100°C |
1. PQ-16 conforms to JKR20200-0043-99.
2. Flange drilled conforms to BS EN1092.
3. DN25 is joint by screw thread.
| 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 |
| 18 | washer | steel | BS970 43A | GB700-88 Q235 |
| 17 | nut | steel | BS970 43A | GB700-88 Q235 |
| 16 | small orifice cover | ductile iron | BS2789 Gr500-7 | GB1348 QT500-7 |
| 15 | screw plug | brass | BS1400 PCB1 | GB1176-87 ZCuZn40Pb2 |
| 14 | sealed orifice | EPDM | BS2494 Type W | |
| 13 | bolt | steel | BS970 43A | GB700-88 Q235 |
| 12 | gasket | EPDM | BS2494 Type W | |
| 11 | ball seal large orifice | EPDM | BS2494 Type W | |
| 10 | screw plug | brass | BS1400 PCB1 | GB1176-87 ZCuZn40Pb2 |
| 9 | float ball | plastic ABS | ISO 2580 | ISO 2580 |
| 8 | washer | steel | BS970 43A | GB700-88 Q235 |
| 7 | nut | steel | BS970 43A | GB700-88 Q235 |
| 6 | dust cap | ductile iron | BS2789 Gr500-7 | GB1348 QT500-7 |
| 5 | large orifice cover | ductile iron | BS2789 Gr500-7 | GB1348 QT500-7 |
| 4 | ball seal large orifice | EPDM | BS2494 Type W | |
| 3 | bolt | steel | BS970 43A | GB700-88 Q235 |
| 2 | float ball | 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 |
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