Abstract： AS 4118.1.3:1995 pdf download.Fire sprinkler systems Part 1.3: Components—wWater motor alarms. 2.1.1 A water motor alarm shall be so designed that it can be readily installed and serviced without damage, using non-specialized tools. Sub-a...

AS 4118.1.3:1995 pdf download.Fire sprinkler systems Part 1.3: Components—wWater motor alarms.

2.1.1 A water motor alarm shall be so designed that it can be readily installed and serviced without damage, using non-specialized tools.

Sub-assemblies intended to be assembled in the field shall be capable of being joined together without misalignment and without

requiring any of the parts to be drilled. welded, or otherwise altered except for a part required to he cut to length or threaded.

2.1.2 After ageing of its nonmetallic parts as described in Clauses 3.1 and 3.2. a water motor alarm shall show no cracking.

warping, creep or other signs of deterioration which may preclude its proper operation.

Materials should be resistant to the effects of ambient temperatures within the range of —35°C to +60°C and to the effects of

sunlight, excluding effects on colour.

2.1.3 Water motor alarm hearings shall he self-lubricating.

NOTE: All moving parts should require minimal maintenance.

2.1.3 Any wuter motor having a nonmetallic hearing or Pelton wheel shall h tested in an assembled condition in accordance with the method of Clause 3.5, following which it shall operate first at 50 kPa and then at 12(X) kPa for periods of 5 mm each.

Recommended：