Senju Socket Wrench for HF Heads is designed to speed installation or removal of Senju model HF-RES fire sprinklers. Through their unique open side design, fitters can see the depth indicator line on the fire sprinkler's protective cap and know when the sprinkler's escutcheon will be flush with the ceiling.
Fire Sprinkler Wrench Helpful Tips:
Tip 1: It is recommended that a qualified professional replace fire sprinklers or in any other way modify a fire sprinkler system.
Tip 2: A fire sprinkler's size describes the inner orifice diameter - either half (1/2 in.) or three-quarter (3/4 in.) inch. The outer diameter of a (1/2 in.) sprinkler's threads measures close to three-quarter inch. The other diameter of a (3/4 in.) sprinkler's threads measures close to one inch. Most offices, small retail locations, etc. have (1/2 in.) sprinklers. This applies to ordering wrenches - make sure to get the wrench that fits your size sprinkler.
Tip 3: Spare fire sprinkler heads and a wrench should be accessible at all times in a facility with a commercial fire sprinkler system installed. Often state regulations apply, too. Check with your local fire department.
Tip 4: Fire sprinkler systems should be visually inspected often and professionally inspected annually.