The MIFAB® MR-500 Series pressure drop activated brass trap seal primer, with inlet opening of 1/2 in male NPT and outlet opening of female 1/2 in NPT. Complete with four-view holes and removable filter screen. Requires no adjustments and no air pre-charge. MIFABs 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.
MIFAB® Pressure Drop Trap Seal Primer, Series: MR-500, 1/2 in Nominal, MNPT x FNPT Connection, 20 to 80 psi, For Use With: Floor Drain Trap, Brass, -40 to 450 deg F, 4-1/8 in H x 1-1/4 in W, Lead-Free
| Lead-Free/Contains Lead | : | Lead-Free |
| Series | : | MR-500 |
| Suitable For Use With | : | Floor Drain Trap |
| Temperature Rating | : | -40 to 450 deg F |
- MIFABs 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
- Only a 3 psi line pressure drop is required to activate the primer, compared to 5 or 10 psi by others, lower water volume fixtures and faucets has resulted in lower line pressure drops, a 3 psi performance point ensures reliable water delivery to maintain the trap seal
Specification Sheet