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AHN42F parallel safety reflux valve
AHN42F parallel safety reflux valve
Product details
■ [Product Introduction]
The AHN42F parallel safety reflux valve is installed on the liquid-phase reflux pipeline at the outlet of the liquefied petroleum gas station tank pump. When the pressure before the pump exceeds the specified value, the valve automatically opens and plays a safety reflux role, ensuring the safe operation of equipment and pipelines.
■ [Structure diagram]
■ [Main design parameters]
|
Design, Manufacturing |
Flange connection |
Structural length |
Nominal diameter |
Nominal pressure |
|
GB/T12243 |
JB/T79-94,GB9113-2000 |
GB12221-89 |
DN25~DN300mm |
PN1.6,2.5,4.0MPa |
Main performance parameters of safety reflux valve
|
Nominal pressure |
Shell test |
Sealing test |
Activate pressure |
Applicable media |
Suitable temperature |
|
1.6 |
2.4 |
0.9PK |
User confirmed |
Liquefied gas, natural gas Non corrosive media |
-40~ 80℃ |
|
2.5 |
3.75 |
||||
|
4.0 |
4.4 |
■ [External dimensions and connection dimensions]
|
Nominal diameter |
Size |
||||||
|
D |
D1 |
D2 |
b |
Z-ød |
L |
H |
|
|
40 |
150 |
110 |
85 |
16 |
4-18 |
200 |
236 |
|
50 |
165 |
125 |
100 |
16 |
4-18 |
230 |
266 |
|
65 |
185 |
145 |
120 |
20 |
4-18 |
290 |
430 |
|
80 |
200 |
160 |
135 |
20 |
8-18 |
310 |
490 |
|
100 |
215 |
180 |
155 |
22 |
8-18 |
350 |
548 |
|
150 |
280 |
240 |
210 |
24 |
8-23 |
480 |
706 |
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