Emergency Vent Manhole Cover
1.Manufacture standard:GB5908-86.
2.End type:Flange/Thread.
3.End standard:HG,GB,SH,HGJ,JB,ANSI,JIS.
4.Operating pressure:200mmH2O～1500mmH2O.
Material of construction:
|
NO |
1 |
2 |
3 |
4 |
5 |
|
Component |
Body |
Stem Guide |
Pressure Disk |
Pressure Seat |
Coating |
|
Material |
Steel |
304 |
304 |
304 |
304 |
Dimension table：
|
DN |
450 |
500 |
600 |
700 |
750 |
|
L |
370 |
380 |
480 |
540 |
600 |
|
H |
658 |
708 |
808 |
908 |
955 |
Drawing of emergency vent manhole cover:
OrderConstruction：
Please give clear indication of Dimension operating pressure and material.
Please give clear indication of flange, material and operating pressure if you need other standard.
