What is the primary purpose of a revolving branch pipe?

It creates a rotating water curtain or spray to provide a heat shield, protecting firefighters from intense radiant heat during firefighting operations.

What is the standard hydraulic test pressure for the branch pipe?

It must be tested at a hydraulic pressure of 2.1 MN/m2 (21 kgf/cm2) for 2.5 minutes without showing signs of leakage or sweating.

What materials are allowed for manufacturing the body?

Commonly leaded tin bronze (gunmetal), aluminium alloys, or suitable brass grades depending on the weight and corrosion resistance needs.

IS 906

: 1988

Specification for Revolving Branch Pipe For Fire Fighting

CurrentSpecializedSpecificationFire Safety · Fire Fighting

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This standard lays down the material, dimensional, and performance requirements for revolving branch pipes used in fire fighting. It ensures these fittings safely withstand high hydraulic pressures and properly generate a revolving water curtain to protect firefighters from intense radiant heat.

Specification for Revolving Branch Pipe For Fire Fighting

Quick Reference Values

hydraulic test pressure2.1 MN/m2 (21 kgf/cm2)

hydraulic test duration2.5 minutes

inlet connection size63 mm male instantaneous pattern

Practical Notes

Ensure the revolving head mechanism is kept clean and properly lubricated to prevent jamming during an emergency.

Aluminium alloy branch pipes should be treated for anti-corrosion, especially if used in marine or highly corrosive industrial environments.

Always verify the 63 mm instantaneous inlet connection is perfectly compatible with the standard IS 903 delivery hose couplings to prevent leaks.