ASSE 1018|UPC Certified

• Only a three p.s.i. line pressure drop is required to activate the primer, compared to five or ten p.s.i. by others. Lower water voume fixtures and faucets has resulted in lower line pressure drops. A three p.s.i. performance point ensures reliable water delivery to maintain the trap seal. MIFAB’s trap seal primers can be disassembled in the field for easy cleaning and repair, without risk of losing a precharge. Four view holes permit easy inspection of water delivery. The holes are across from each other, enabling light at the opposite end to illuminate the performance of the primer. A replacement stainless steel sediment filter prevents line debris from entering the primer. This can be replaced after wear and build up of debris to ensure maximum life and performance of the primer. The replaceable and repairable cartridge tubes inside of the body are factory engineered to deliver enough water to service three, six or ten floor drain traps without adjustment. This eliminates confusion during field installation. The M-500 Series of trap seal primers are tested and third party listed to the A.S.S.E. 1018 Standard.

The MIFAB® MR-500 Series pressure drop activated brass trap seal primer, with inlet opening of 1/2? male N.P.T. and outlet opening of female 1/2? N.PT. Complete with four view holes and removable filter screen. Requires no adjustments and no air pre-charge. MIFAB’s Series of pressure activated trap seal primers (MR-500, M1-500 and M2-500) can be connected to any cold water line and will be automatically activated when a valve or faucet, that is on the line, is opened.