Fuel Tanker Petroleum Manhole Cover(Type15)

1. Flanged

2. 24 bolts

3. 135°Max.opening angle of manhole cover

4. 2 auxiliary holes can be used for oil and gas recovery valve and anti overflow probe rod

Type 15 items optional:

MH03T-530G100

Outer diameter 530mm, no breathing valve, fasten with clamp.

MH03T-530G200

Outer diameter 530mm, no breathing valve, fasten with clamp.

MH03T-530G300

Outer diameter 530mm, no breathing valve, fasten with clamp.

MH03T-530G370

Outer diameter 530mm, no breathing valve, fasten with clamp.

MH03T-530AG100

Outer diameter 530mm, 1 internal breathing valve, fasten with clamp.

MH03T-530AG200

Outer diameter 530mm, 1 internal breathing valve, fasten with clamp.

MH03T-530AG300

Outer diameter 530mm, 1 internal breathing valve, fasten with clamp.

MH03T-530AG370

Outer diameter 530mm, 1 internal breathing valve, fasten with clamp.

MH03T-530BG100

Outer diameter 530mm, 2 internal breathing valve, fasten with clamp.

MH03T-530BG200

Outer diameter 530mm, 2 internal breathing valve, fasten with clamp.

MH03T-530BG300

Outer diameter 530mm, 2 internal breathing valve, fasten with clamp.

MH03T-530BG370

Outer diameter 530mm, 2 internal breathing valve, fasten with clamp.

Technical Specifications:

Nominal diameter:

DN500（20″）

Emergency opening pressure:

21~35KPa

Maximum emergency exhaust flow:

7000m³/h

Medium:

Diesel and gasoline

temperature range:

-20℃ ~ 50℃

Operating temperature range under special working conditions:

-40℃ ~ 70℃