Hose Bands / Pipe Clamps
Repair Clamp Joint for Elbow Pipe
Repair Clamp Joint for Elbow Pipe is a group of 36 IMPA-coded items (codes 614008–614100) under Hose Bands / Pipe Clamps in the Hand Tools section (IMPA 61). All of them are priced per piece.
Buying guide
An elbow repair clamp is a split, bolted shell shaped to a pipe bend, lined with rubber. It is clamped over a leaking or wasted elbow to seal it without cutting the pipe out. The group lists clamps from 15A to 500A, each with an EPDM or an NBR liner. The catalogue gives working pressures from 18 kgf/cm² for the small sizes, falling to 10 kgf/cm² at 200A–400A and 7 kgf/cm² at 450A and 500A.
Engineers keep them in the emergency repair stock for sea-water, fresh-water and service lines, where elbows erode first. A clamp holds the line until the elbow can be renewed.
How to specify it
Give the nominal size in A, the designation used for Japanese steel pipe. The A size stands for a fixed outside diameter: JIS G 3454 pressure pipe runs from 10.5 mm (6A) to 660.4 mm (650A). If the pipe is to another standard, give its measured outside diameter. Also give the elbow radius (long or short), since the clamp has to follow the bend.[1]
Choose the liner for the fluid. EPDM resists hot and cold water, steam and weather, the rubber for water lines. NBR (nitrile) resists mineral oils, fuels and diluted acids and alkalis, the choice for fuel, lube-oil and other oily lines. NBR’s working range is about −40 to 108 °C.[2][3]
Check the line’s working pressure against the clamp rating for that size before relying on it. The larger clamps in this group are rated lower than the small ones.
Questions buyers ask
- EPDM or NBR repair clamp: which one for a sea-water line?
- EPDM, the rubber for water and steam service. Use NBR on oil or fuel lines, where its oil and fuel resistance is needed.
- What pipe does a 50A clamp fit?
- Pipe of 50A nominal size in the Japanese (JIS) system. If your pipe is to another standard, measure the outside diameter and give it on the requisition.
Sources
Published by Sherif Awad, founder of GeoMarineHub — in ship supply since 1990, a family business since 1981 (45 years). Last checked .
At a glance
Part of Hand Tools (IMPA section 61): Spanners, wrenches, hammers, pliers, screwdrivers, files, chisels, non-sparking tools, jacks and ladders.
It is one of 9 groups under Hose Bands / Pipe Clamps; the others include Banding Clamps & Tools, Hose Bands, Hose Bands Extra Heavy Duty, Rapid Repair Clamps, Straub Clamps and 3 more.
Post the ones you need as a requirement and verified suppliers activated at your port bid on them — sealed, so nobody sees another bid.
- Items
- 36
- IMPA codes
- 614008–614100
- Priced
- per piece
Items
Also under Hose Bands / Pipe Clamps
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