Container tank pressure manhole cover

pressure vessel manhole, manhole with pressure company supply stainless steel S30408, S31603 material

Surface treatment: inside and outside matte outside matte inside mirror pickling passivation

Basic style: round, oval, square basic common sizes are as follows:

Elliptical type (pressure): can withstand the highest pressure 5 kg pressure specifications: 435X335535X435635X525

Circular (pressure) : affordable big pressure 3 ~ 6 kg specification: 350 x120400x120430x120450x120500x120600x120 circular (not pressure) : ordinary conditions of use, not under pressure.Specification: 350 x100, 400 x100,430x100,450x100,500x100,600x100 rectangle (pressure) : affordable * 5 bar pressure.Specification: 330 x430,435x512,412x535