A blind bulkhead fitting is configured for installation into a tank or vessel from an exterior side of the tank. The blind bulkhead fitting permits installation when the interior of the tank is not accessible. In one embodiment, the blind bulkhead fitting includes an inner fitting, an inner nut, and an outer fitting. Traditional plumbing fixtures may be attached to the outer fitting. Threads on the components of the fitting are designed to cause a tightening of the fitting when a fixture is attached to the outer fitting.

A blind bulkhead fitting is configured for installation into a tank or vessel from an exterior side of the tank. The blind bulkhead fitting permits installation when the interior of the tank is not accessible. In one embodiment, the blind bulkhead fitting includes an inner fitting, an inner nut, and an outer fitting. Traditional plumbing fixtures may be attached to the outer fitting. Threads on the components of the fitting are designed to cause a tightening of the fitting when a fixture is attached to the outer fitting.

A trench is dug under an above ground water storage tank either before erection of the walls or after the wall is erected. A (rectangular) sump is preferably made of ? inch steel. It serves as a conduit from an inner tank liner port to an outside tank fill or drain port. The system eliminates hoses hung over the top edge of the tank wall. A pump can fill the tank from the outer port. The tank can be drained using head pressure of the water and/or a pump.

An air distributor may include a thin-wall main pipe (10) and branch pipes (48) distributed on the main pipe. The branch pipes may be symmetrically fixed on the main pipe by locking device disposed in the main pipe. Welding is not needed, and disassembly and maintenance are easy. The main pipe is thin-wall pipe, therefore the weight of the device is greatly reduced, and the production cost is decreased.

An air distributor may include a thin-wall main pipe (10) and branch pipes (48) distributed on the main pipe. The branch pipes may be symmetrically fixed on the main pipe by locking device disposed in the main pipe. Welding is not needed, and disassembly and maintenance are easy. The main pipe is thin-wall pipe, therefore the weight of the device is greatly reduced, and the production cost is decreased.

An insertion probe adapter for fluid sample extraction from a pipeline for mounting of an overlying housing element is illustrated and described. The invention permits disengagement of an insertion probe from the body of the probe adapter without disassembling the body from the pipeline and without disassembling the overlying housing element from the body.

An insertion probe adapter for fluid sample extraction from a pipeline for mounting of an overlying housing element is illustrated and described. The invention permits disengagement of an insertion probe from the body of the probe adapter without disassembling the body from the pipeline and without disassembling the overlying housing element from the body.

Systems and methods for installing and sealing a fuel pump in a fuel tank are disclosed. In one embodiment, a system for installing and sealing a fuel pump in a fuel tank may include (1) a fuel tank with an opening in a surface thereof; and (2) a fuel pump hanger assembly, the fuel pump hanger assembly comprising; (a) a plurality of assembly screws; (b) a plurality of clamping lugs configured to thread onto the plurality of assembly screws and engage an inside surface of the fuel tank; (c) a top plate further comprising; (i) a bearing surface configured to engage an external fuel tank surface; (ii) a plurality of through holes proximate the perimeter of the top plate and perpendicular to the bearing surface; (iii) a plurality of bosses, each of the plurality of bosses adjacent to each through hole, configured to guide and position the each clamping lug; and (d) a gasket positioned between the top plate and the fuel tank.

Systems and methods for installing and sealing a fuel pump in a fuel tank are disclosed. In one embodiment, a system for installing and sealing a fuel pump in a fuel tank may include (1) a fuel tank with an opening in a surface thereof; and (2) a fuel pump hanger assembly, the fuel pump hanger assembly comprising; (a) a plurality of assembly screws; (b) a plurality of clamping lugs configured to thread onto the plurality of assembly screws and engage an inside surface of the fuel tank; (c) a top plate further comprising; (i) a bearing surface configured to engage an external fuel tank surface; (ii) a plurality of through holes proximate the perimeter of the top plate and perpendicular to the bearing surface; (iii) a plurality of bosses, each of the plurality of bosses adjacent to each through hole, configured to guide and position the each clamping lug; and (d) a gasket positioned between the top plate and the fuel tank.