Product definition : Manhole operation well refers to a product that provides an underground space for installing equipment to transport and manage oil products at gas stations. The equipment includes liquid level meters, oil pumps, oil filling manhole covers and other equipment. It is a buried concealed engineering product.

Application occasions: The application occasions are first-level explosion-proof areas, and open flame construction is strictly prohibited during operation.

Pre-requisites: As a concealed engineering product in a Class I explosion-proof area, its design service life should be greater than 30 years, and its safety and explosion-proof performance must be certified or tested by a third-party independent organization.

Application: This application occurs in the first-level explosion-proof area. Hot work is strictly prohibited during operation.

Prerequisite: As a concealed engineering product in a Class I explosion-proof area, its design service life should be more than 30 years. Safety and explosion-proof performance need to be certified or tested by a third-party independent organization.

Applicable projects: used for new construction and expansion projects of gas stations, and for load-bearing tank areas and non-load-bearing tank areas.

Buried depth: The distance from the bottom sealing flange surface of the load-bearing tank area and the non-load-bearing tank area to the ground of the gas station should be ≥1000mm.

model.  Applicable to flange bolt hole center distance material manhole well type and manhole cover type

WDSMC-1465-0     1350 mm SMC without manhole cover without intermediate heightening connection ring

WDSMC-1465-1     1350 mm SMC heavy duty round manhole cover without intermediate heightening ring

WDSMC-1465-2     1350 mm SMC non-load bearing square manhole cover without intermediate heightening connection ring