What is the scope of this standard?

It covers requirements for surface-mounted hydraulic door closers of the rack and pinion type, with or without a back-check feature (Clause 1.1).

What is the endurance test requirement?

The closer must complete 50,000 continuous opening and closing cycles without failure, breakage, or oil leakage (Clause 8.6).

What materials are specified for the closer body?

The body should be made of close-grained cast iron conforming to Grade FG 150 of IS 210 or a suitable aluminium alloy (Clause 3.2).

Is a marking required on the product?

Yes, each closer must be marked with the manufacturer's name or trade-mark and the country of manufacture. It may also be marked with the ISI Certification Mark (Clause 9.1).

IS 6318

: 1971

Hydraulic Door Closers (with or without check action)

CurrentSpecializedSpecificationBIMArchitectural · Doors, Windows and Shutters

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This standard specifies the requirements for materials, dimensions, manufacture, performance, and testing of hydraulic door closers, both with and without a back-check feature. It primarily covers surface-mounted rack and pinion type closers used in various building applications.

Specifies requirements for hydraulic door closers for controlling door movement.

Quick Reference Values

Minimum endurance test cycles50,000 cycles

Closing time adjustment range from 90°3 to 20 seconds

Minimum efficiency after endurance test60 percent

Maximum permissible leakage during testNil

Body material requirementCast Iron Grade FG 150 of IS 210 or suitable Aluminium Alloy

Practical Notes

Ensure the closer size is correctly matched to the door's weight and width for proper operation and longevity, as specified by the manufacturer.

The 'check action' or 'back-check' feature is crucial for doors exposed to wind or in high traffic areas to prevent slamming against the frame or wall.

Regularly check for hydraulic fluid leakage from the spindle seals or body, as this is a primary cause of operational failure.