Inquiry (采购产品): Quote Request I am looking for a horizontal hatch for man access to an existing concrete structure. The concrete vault is some 12'x12'x12' junction box for a sewer system. Looking to retrofit the structure with an additional lid for added hydraulic head of some 15 feet or 6.5 psi. The hatch would only need so be some 24" diameter, as it is for man access and the existing entry is this dimension. But, it could be larger and the "telecope" down to the 24" opening below in the existing concrete "box" vault lid. It does need to be operational for some 20 - 50 years. I need to know if it can be operated by a person. Can it be poured into concrete slab such that the 6.5 psi rating in intregal to the hatch and connection to the composite slab (intended to be concrete, rebar, waterstop, etc). Thank you. What products do you have that could be applicable? **** Hidden Message ***** Tammy Cleys 97201 USA Company: City of Portland - BES Title: Supervising Engineer E-mail: tammy.cleys@portlandoregon.gov **** Hidden Message ***** tammy.cleys@portlandoregon.gov
