Black Malleable Iron Hexagon Bushes M x F 1/4 inch to 4 inch

Black Malleable Iron Hexagon Bushes M x F

Black Malleable Iron Hexagon Bushes M x F ideally suited when a smaller size female thread is required.

At Plumb Parts in Glasgow, we stock a wide range of Black and Galvanised Malleable Iron Pipe Fittings. Due to their durability, corrosion resistance and mechanical strength these fittings are ideal when compared to grey cast iron and mild steel.

Black Malleable attachments are solidly made for long-lasting durability and dependability. Black Malleable Iron fire and corrosion-resistant properties make them especially useful for natural gas or hot water heating systems or plumbing applications making these fitting ideal to use in Schools, Nursing Homes, Hospitals, Warehouses, and Industrial Spaces.

Malleable iron pipe fittings are available in black and galvanised finishes with the majority of fittings having the BSI Kitemark approval and conforming to BS EN 10242 and have UL approval.

 Our stock of malleable iron fittings is of the Blackheart type which is ideally suited to pipe fittings and manufacturing processes which conforms to BS EN 1562.

Malleable Fittings Features & Benefits

Offer taper to taper threaded joints ensuring uniform stressing of threads due to full engagement between male and female threads, thus avoiding localised stress.

Made from ‘blackheart’ MI, ensuring even distribution of carbon content.

Specially tested fittings for high pressures above 25 bar

Have a full clear bore.

Threads with precise axial alignment ensure high sealing forces and a straight pipe run

Have a high factor of safety over the working pressure.

Fields of Application:

Sanitary, heating and gas installation

Cooling and air conditioning

Sprinkler and gas fire extinguishing systems

HVAC

Steam

General non-aggressive media

Construction of industrial plants (e.g. gas, emulsion, and pressured air pipework)

Machine construction (e.g. oil, cooling, and lubrication pipes)

Construction of petrol stations (gas lines)

Commercial and domestic vehicles construction

 Variations

 At Plumb Parts in Glasgow we keep a variety of Black and Galvanised Fittings including;

  Black Iron 45 deg Elbow F x F

 Black Iron 45 deg Elbow M x F

Black Iron 90 deg Elbow F x F

 Black Iron 90 deg Elbow M x F

Black Iron 90 deg Reducing Elbow F x F

Black Iron 90 deg Bend F x F

Black Iron 90 deg Bend M x F

Black Iron Back Nut

Black Iron Elbow Union M x F

Black Iron Elbow Union F x F

Black Iron Flanged Plug

Black Iron Plain Plug

Black Iron Hexagon Bush M x F

Black Iron Hexagon Cap

Black Iron Nipple M x M

Black Iron Reducing Nipple M x M

Black Iron Socket F x F

Black Iron Reducing Socket M x F

Black Iron Equal Tee

Black Iron Reducing Tee

Black Iron Straight Union M x F

Black Iron Straight Union F x F

Galvanised Iron 45 deg Elbow F x F

 Galvanised Iron 45 deg Elbow M x F

Galvanised Iron 90 deg Elbow F x F

 Galvanised Iron 90 deg Elbow M x F

Galvanised Iron 90 deg Reducing Elbow F x F

Galvanised Iron 90 deg Bend F x F

Galvanised Iron 90 deg Bend M x F

Galvanised Iron Back Nut

Galvanised Iron Elbow Union M x F

Galvanised Iron Elbow Union F x F

Galvanised Iron Flanged Plug

Galvanised Iron Plain Plug

Galvanised Iron Hexagon Bush M x F

Galvanised Iron Hexagon Cap

Galvanised Iron Nipple M x M

Galvanised Iron Reducing Nipple M x M

Galvanised Iron Socket F x F

Galvanised Iron Reducing Socket M x F

Galvanised Iron Equal Tee

Galvanised Iron Reducing Tee

Galvanised Iron Straight Union M x F

Galvanised Iron Straight Union F x F

Specification

• Material: Black malleable iron
• Connection: Male BSP outside, female BSP inside
• Sizes: 38 reducing sizes from 1/4″ x 1/8″ up to 4″ x 3″
• Suitable for: Reducing a female fitting to a smaller thread

Common Questions

How does a hexagon bush reduce a thread?

The male outside screws into a larger female fitting, and the smaller female thread inside takes the new pipe or fitting. The hex lets you tighten it with a spanner.

Can I stack two bushes to reduce further?

It works, but each bush is another joint and narrows the bore. A reducing socket or the right size bush is a neater fix.

Which way round is the size written?

The larger male thread comes first and the smaller female second, so a 1″ x 1/2″ bush goes into a 1″ fitting and takes a 1/2″ thread. Check both threads on the job before ordering.