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Type 3 20 Inch Stainless Steel Fuel Tanker Manhole Cover Characteristic: | |
1. Flanged 2. There're 24 bolts. 3. 135°Max.opening angle of manhole cover 4. 2 auxiliary holes can be used for Oil and gas recovery valve and external breathing valve 5. 304 stainless steel | |
| Type 3 items optional: | |
MH03B-560EFb | Outer diameter 560mm, 1 Internal and external breathing valve, fluororubber seal |
MH03B-560EVb | Outer diameter 560mm, 1 Internal and external breathing valve, fluororubber seal |
MH03B-580EFb | Outer diameter 580mm, 1 Internal and external breathing valve, fluororubber seal |
MH03B-580EVb | Outer diameter 580mm, 1 Internal and external breathing valve, fluororubber seal |
Technique Specifications: | |
Nominal diameter: | DN500（20″） |
Emergency exhaust diameter: | 10″ |
Emergency opening pressure: | 21~35KPa |
Maximum emergency exhaust flow: | 7000m³/h |
Medium: | Dangerous chemicals |
Operating temperature range: | -40℃ ~ 200℃ |
Fuction&Feature
1. The big plate is used of steel plate to punch forming,the material of big plate and dimension can be produced according to user's requirement.
2.The position of small plate and dimension can be made according to user's demand.
3.Can be installed double P/V vent valve according to requirement.
4.As usual,big plate have two bling hole, it can be installd vapor adaptor valve and optic sensor.
