Muff Coupling
High strength gravity cast aluminium at a greatly reduced price compared to sand. Our 3″ to 8″ gravity casting muff couplings offers a higher amount of strength when compared to the same alloy cast in sand. As well we have greater precision consistency to the OD of the hose due to the coupling being made in an iron permanent mould rather than from an inconsistent sand pattern.
To suit Table D. We have elongated the bolt holes allow for more flexibility when fitting.
Muff Coupling set includes 2 halves and fasteners. Table E/ANSI have limited availability, you can call us first to ask about the availability.
Gravity Cast Aluminium Muff Couplings
Muff couplings, also known as split flange couplings, are made from a high ductility aluminium in sand and gravity.
We have been supplying muff couplings into the market 2010. we found the market was decaying due to a lack of supply brought upon by high priced parts exclusively cast in sand.
After our foundry installed a toolroom our first mould was the 3" table D coupling. Since then we now cover from 2" right up to 16" in D, E & ANSI table configurations.
Our aluminium, LM20 allows for a greater ductility than the standard LM25 allowing more surface clamping contact area.

Gravity Cast Aluminium
Bolts
Elongated Slots
Part Number | Size | Range | Tables | Casting Type |
---|---|---|---|---|
DMC50 | 50mm | Ø69 → Ø71 | D/E/ANSI | SAND |
DMC75 | 75mm | Ø100 → Ø104 | D/E/ANSI | GRAVITY |
DMC100 | 100mm | Ø125 → Ø129 | D/E/ANSI | GRAVITY (D) SAND (E/ANSI) |
DMC125 | 125mm | Ø152 → Ø157 | D/E | SAND |
DMC150 | 150mm | Ø181 → Ø185 | D/E/ANSI | GRAVITY (D) SAND (E/ANSI) |
DMC200 | 200mm | Ø233 → Ø238 | D/E/ANSI | GRAVITY (D) SAND (E/ANSI) |
DMC250 | 250mm | Ø285 → Ø289 | D/E/ANSI | SAND |
DMC300 | 300mm | Ø340 → Ø345 | D/E/ANSI | SAND |
DMC350 | 350mm | Ø395 → Ø405 | D/E/ANSI | SAND |
DMC400 | 400mm | Ø454 → Ø461 | ANSI | SAND |
Coupling Sizes |
50mm (2") ,75mm (3") ,100mm (4") ,125mm (5") ,150mm (6") ,200mm (8") ,250mm (10") ,300mm (12") ,400mm (16") |
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Flange Tables |
ANSI150 ,Table D ,Table E |