◘Benefit and Features

• Surface Treatment

Stainless Steel’s surface is treated by mirror polishing to make it more pleasing and longer performing.

• With Lead Sealing

With the Lead Sealing Board, it can be sealed directly.

• Opening Angle

The turn-hinge with the opening angle stop device, it can effectively prevent the crash which between the stainless steel manhole cover and tanker when the cover is opening.

• Type Diversification

The nominal diameter, material and height can be ordered by user’s demand.

• Structure Features

The size is more smart, it’s better suit the small installation space’s requirements.

• The materials of manhole cover can be ordered in different according to user’s demand, such as aluminum alloy, carbon steel, stainless steel 304 ,stainless steel 316 .
• The nominal diameter and base’s height can be ordered by user’s demand.
• The Sealing gasket can be chosen according to user’s actual demand, different sealing gasket with different nominal pressure.

Seal Material	NBR	FKM	Silicone Rubber
Temperature range	-10℃~+50℃	-20℃~+120℃	-50℃~+120℃
Sealing Pressure	0.3MPa	0.3MPa	0.3MPa

Seal Material	Silicon Rubber Cover with PTFE	PTFE Packing	PTFE
Temperature range	-70℃~+200℃	-100℃~+200℃	-100℃~+200℃
Sealing Pressure	0.1MPa	0.1MPa	0.1MPa