Dixon Rigid roll grooved coupling, 4" (100mm)

This Dixon rigid coupling joins two roll grooved pipe ends and holds them stiff, with an angle pad design that clamps the pipe and resists bending and twisting. The housing is ductile iron to ASTM A536 with a hot dip galvanised finish (AS4680) and a black EPDM gasket. It comes in eight sizes from 1-1/4" to 8" (32 to 200 NB).

Every size is rated at 300 PSI with an operating temperature of -30 to 110°C, lists it as UL listed and FM approved, and compares it with Victaulic No. 005.

Where this product is used

• Fire sprinkler and hydrant systems, and hot water and potable water lines
• Straight pipe runs where the line must stay rigid, for example along risers and plant room pipework

Features

• Angle pad design
• Housing: ductile iron (ASTM A536), hot dip galvanised finish (AS4680)
• Standard gasket: EPDM, black
• Temperature: -30 to 110°C
• Working pressure: 300 PSI
• The range is UL listed and FM approved

Key specifications

Choosing the right option

A rigid coupling suits lines that must not flex. Match the pipe OD exactly: Dixon's 150 NB size is 165.1mm, and a separate transition coupling handles the 168.3mm USA size. Choose the gasket for the fluid: EPDM for water, nitrile for petroleum products.

Not for use with hydrocarbons such as petroleum, kerosene and diesel when fitted with the standard EPDM gasket.

Related Dixon couplings and gaskets: Dixon Roll Grooved Coupling Flexible Heavy Duty Galvanised, Dixon 165.1 x 168.3mm Roll Grooved Rigid Transition Coupling - Galvanised and Dixon EPDM Gasket For Roll Grooved Coupling.