Vertical Shaft Pipe Coupling - Hydromine ...

Vertical Shaft Pipe Coupling - Hydromine Thercom

Vertical Shaft Pipe Coupling - Hydrocore Thercom

The N.G.D vertical shaft coupling is used to connect high pressure pipes in a vertical shaft column.

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The 'best' couplings is a tailor-made coupling, to enable the joining of pipes in a vertical shaft, which offers many advantages of which few are listed below.

occupies small shaft space.
individual support of each pipe in the shaft.
the coupling is a natural expansion joint.
low cost compare with flanges.
integrates the pipe support into the coupling structure.
no bolting or welding is required for the pipe joining.
quick and easy handling of pipes in the shaft.
seals are not affected by water hammer occurrence.

Design

N.G.D valves is the designer and the manufacturer of the 'BEST' pipe couplings.
the mechanical design was verified by A.T.D, utilising final element analysis method.
the testing procedure complies with: -
ASTM, BPV section VIII and ASME/ASTM B31.3
Anglo-American Technical Department (ATD)

Pipe Manufacturing

pipe ends are machined for thick wall pipes.
pipe ends are pre-machined and welded to the pipes for thin wall pipes.
pipes are coated after machining of the pipe ends.
the pipe's wall thickness complies with manufacturing tolerances for pipes.
the pipes lifting lugs are welded to the pipes and the mechanical strength is sufficient to lift the pipes.

Pipes Handling

plastic covers protect the pipe ends during transport and installation.
the location of the pipe lifting lugs, are designed to enable easy installation or removal of pipes in the shaft.
pipe ends will be checked by N.G.D supervisor, prior to the installation.

Installation Tolerances

vertical misalignment : ±20mm
horizontal misalignment (9.0m pipes) : ±50mm
angular misalignment : 0.5

Material of Construction

Coupling : EN-8 or BS3100 grade ‘A2’
Bolts : Stainless Steel
Coating : 50μ epoxy on 30μ base zinc
Seals : Polyurethane/Rubber
Eye-bolts : Grade 8.8 galvanised

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The 'best' couplings is a tailor-made coupling, to enable the joining of pipes in a vertical shaft, which offers many advantages of which few are listed below.

occupies small shaft space.
individual support of each pipe in the shaft.
the coupling is a natural expansion joint.
low cost compare with flanges.
integrates the pipe support into the coupling structure.
no bolting or welding is required for the pipe joining.
quick and easy handling of pipes in the shaft.
seals are not affected by water hammer occurrence.

Design

N.G.D valves is the designer and the manufacturer of the 'BEST' pipe couplings.
the mechanical design was verified by A.T.D, utilising final element analysis method.
the testing procedure complies with: -
ASTM, BPV section VIII and ASME/ASTM B31.3
Anglo-American Technical Department (ATD)

Pipe Manufacturing

pipe ends are machined for thick wall pipes.
pipe ends are pre-machined and welded to the pipes for thin wall pipes.
pipes are coated after machining of the pipe ends.
the pipe's wall thickness complies with manufacturing tolerances for pipes.
the pipes lifting lugs are welded to the pipes and the mechanical strength is sufficient to lift the pipes.

Pipes Handling

plastic covers protect the pipe ends during transport and installation.
the location of the pipe lifting lugs, are designed to enable easy installation or removal of pipes in the shaft.
pipe ends will be checked by N.G.D supervisor, prior to the installation.

Installation Tolerances