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.

About Our Couplings

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

We use a high ductility aluminium allowing up to 10% elongation

Bolts

Our zinc plated bolts allow a great amount of pull down.

Elongated Slots

We stock Tables D,E & ANSI. Many of our couplings can handle different tables in the same part.
See the Range
Size Chart

Part NumberSizeRangeTablesCasting Type
DMC5050mmØ69 → Ø71D/E/ANSISAND
DMC7575mmØ100 → Ø104D/E/ANSIGRAVITY
DMC100100mmØ125 → Ø129D/E/ANSIGRAVITY (D) SAND (E/ANSI)
DMC125125mm Ø152 → Ø157D/ESAND
DMC150150mmØ181 → Ø185D/E/ANSIGRAVITY (D) SAND (E/ANSI)
DMC200200mmØ233 → Ø238D/E/ANSIGRAVITY (D) SAND (E/ANSI)
DMC250250mmØ285 → Ø289D/E/ANSISAND
DMC300300mmØ340 → Ø345D/E/ANSISAND
DMC350350mmØ395 → Ø405D/E/ANSISAND
DMC400400mmØ454 → Ø461ANSISAND

Additional information
Coupling Sizes

50mm (2")

,

75mm (3")

,

100mm (4")

,

125mm (5")

,

150mm (6")

,

200mm (8")

,

250mm (10")

,

300mm (12")

,

400mm (16")

Flange Tables

ANSI150

,

Table D

,

Table E