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Serving all of the USA, Canada, Australia and the Middle East, MIFAB can provide you with the quality, engineered plumbing and drainage solutions you need. Innovative product designs save the installer time and material cost and provides the owner with higher quality cast stainless steel drains and cleanouts for the same cost as the industry standard nickel bronze. Contact us today to learn more.

All Categories  > Trap Seal Primers and Water Hammer Arrestors
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    Specification: MIFAB - MWH Series 1/2" to 2" Size piston operated water hammer arrestor with hard drawn seamless "K" copper body, RYTON PPS piston with double o-rings (Parco # 5778-80) and CDA 360 brass M.P.T. connection. Certified to the A.S.S.E. 1010-1996 and ANSI A112-26.1M Standards. Engineered to limit the system surge pressure to 1,500 P.S.I.G.
    Function: Used in commercial, institutional, and residential applications on water supply lines to reduce water hammer caused by the quick opening and closing of valves within the piping system. To be installed as close as possible to quick closing valves. The resulting hydraulic shock waves can lead to broken pipes and affect valves in appliances if not reduced with the use of a water hammer arrestor. An access door is not required to provide access to MIFAB's water hammer arrestors.

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    Specification: MIFAB® MI-GARD® Series inline floor drain trap seal with UV resistant ABS plastic frame, silicon rubber sealing flapper and four flexible sealing ribs. Tested and certified to the ASSE 1072 Standard and listed with IAPMO and I.C.C. Specify connection size (1 1/2”, 2”, 3”, 3 1/2”, 4” or 6”).

    Not Intended to be used in lieu of a trap seal primer.

    Note: The MI-GARD-6 is designed in accordance with industry standards but is not listed.

     


    Function: Used in the outlet connections of floor drain bodies, or the inside of floor drain strainers to seal the opening to prevent odors, sewer gases, and insects from entering up through the floor drain grate. The MI-GARD®'s four flexible silicone sealing ribs ensure easy installation into openings that have variations in size. The MI-GARD® will open to allow drainage and close when there is no water flow.

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    Specification: MIFAB Series - WHB Series 3/4" to 1" Size nesting type bellows operated water hammer arrestor with male N.P.T. connection. Bellows and body casing made of Type 304 stainless steel. WHB Series is certified to the PDI WH-201 Standard. Engineered to limit line system surge pressure to 150 P.S.I.G. shall be sized and located in accordance with manufacturer's instructions.
    Function: Installed in commercial, institutional and residential applications on water supply lines to reduce water hammer caused by the quick opening and closing of valves within the piping system. The resulting hydraulic shock waves can lead to broken pipes and effect valves in appliances if not reduced with the use of the water hammer arrestor. Stainless steel bellows operated piston ensures long life for performance and maximum operating efficiency.

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    Specification: MIFAB WHS Series (specify size) Type 316L stainless steel bellows type water hammer arrestor enclosed by anouter Type 304 stainless steel body. The bellows shall be of multiple type diaphragms, and heli-arc welded at the inner andouter peripheries. The bellows shall be exposed internally to the line pressure and all material in contact with the line fluid shallbe stainless steel. The arrestor shall be filled with nitrogen gas between the bellows and the body. Pressure rating is 200 psi.Temperature range is -325 (degree sign) F to +1200 (degree sign) F.
    Function: The WHS Series is a heavy duty water hammer arrestor used to protect plumbing lines from the destructive effectsof water hammer produced by solenoid or other quick closing valves, pulsations from reciprocating pumps, and absorption offluid line expansion, heavy equipment such as commercial laundry machines, dishwashers, etc . . . It is a pressure vesselcontaining an inner, expandable and collapsible stainless steel bellows assembly. A M.I.P. connection is provided to permit liquiddisplaced from the plumbing lines to enter the inside of the bellows assembly. Inside the pressure vessel and surrounding theoutside of the bellows assembly, nitrogen gas is sealed at a pressure equal to the line pressure so that under normal flowingconditions, the internal and external pressures on the bellows unit are equal. The housing is designed to allow for the expansionof the bellows within the shell as it absorbs surges from the main line flow, thus preventing excessive pressure and shock. AllWHS Series water hammer arrestors are welded to meet ASME unfired pressure vessel codes.

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    • Thick walled one piece, hard drawn "K" copper seamless body. Unique design eliminates separate end cap connection to ensure maximum integrity of the body and guarantees free movement of the piston for maximum performance.
    • Ryton PPS piston with two Parco #5778-80 O-rings and Dow Corning #111 FDA approved silicone lubricant. Ribbed piston - design reduces secondary shock, and flared piston skirt prevents hard particles suspended in the water supply from contacting the O-rings to provide increased product life.
    • Large volume air chamber provides better dampening for superior water hammer arrestor performance.
    • Temperature range: Maximum working temperature is 250º F.
    • Operating pressure: Up to 350 P.S.I.G.
    • Surge pressure: Up to 1,500 P.S.I.G.
      Tested and certified to the A.S.S.E. 1010 and A.N.S.I. A112.26.1M Standards and listed with I.A.P.M.O.
      Patent # 6,539,976
    • No access door is required to service MIFAB's water hammer arrestors.
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    MIFAB® MR-500, M1-500 & M2-500 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.

    A pressure drop of three p.s.i. will activate all of the trap seal primers. MIFAB's Series of trap seal primers can be disassembled in the field. Their unique design permits filter replacement without affecting the performance of the primer. The "O" ring seals are tested for reliability at a temperature range of -40 degrees to 450 degrees F. The M-500 Series of trap seal primers do not require adjustment. The operating range for all of MIFAB's Series of trap seal primers is 20 to 80 p.s.i.²

    All three models are listed with I.A.P.M.O. and C.S.A. and are tested and certified to the A.S.S.E. Standard 1018 and are so marked. U.S. Patent # 6,152,164.

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    MIFAB's MI-DU trap seal primer distribution unit is engineered to receive a metered amount of water from a trap seal primer and distribute the water equally to either two, three or four floor drain traps. Choose from either 1/2" or 5/8" compression connections by indicating suffix (-500) for 1/2" or suffix (-625) for 5/8". The lid of the distribution unit has the numbers "2", "3" and "4" marked on it. The body of the distribution unit has a guide marker on the top of the body.
    The numbers and the guide marker are positioned by removing the three screws in the lid of the unit and rotating the lid to match the appropriate numbers with the guide marker to provide priming for the desired number of drains. Do not over torque the three lid screws when securing the lid back to the body. It is not necessary to install MIFAB's distribution unit perfectly level. The unique design will distribute water uniformly when out of level.

    Trap Seal Primer Distribution unit that serves two, three or four floor drain traps.

    Model MI-DU is listed with I.A.P.M.O. U.S. Patent # 6,142,178.

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    MIFAB's MI-700 Series trap seal primers are engineered to prime one floor drain trap that is no further than twenty feet from the fixture supplying the prime. A 1/2" (13) O.D. copper make-up water line connecting the trap seal primer to the floor drain trap is recommended for the M700 & MI-701.

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    Specification: MIFAB® Series MI-730 P-Trap shall be made from 17 gauge polished chrome plated brass and shall have a removable clean out plug at the lowest gavitational point of the J-Bend. Shall be designed with slip joints for ease of connection and lock nuts to tighten and hold in place after installation.
    Function: Designed to collect and hold water at the bottom of the J-Bend to stop the back flow of sewer gas. The device shall come equipped with a wall tube and decorative escutcheon to cover up the entrance of the wall tube through the wall.

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    Specification: MIFAB® Series MI-750 tailpiece trap seal primer, polished chrome plated cast brass body with bottom cleanout, gasketed ground joint elbow with 1 1/2" tailpiece, 1 1/2" slip nuts and washers, 1 1/4" slip nut and washer for 1 1/4" sink tail piece installation, escutcheons, braided hose primer tubing, and compression fitting.
    Function: Used to collect condensate from air conditioning and refrigeration equipment. The condensate drains by gravity through the piping to the tapped inlet on the fixture side of the MI-750. The braided hose drains the condensate from the trap to a line connected to the trap seal primer tapping in floor drain bodies to maintain the trap seal and to prevent harmful sewer gases from entering the building area.

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    MIFAB Series MI-6 2-4 ABS or PVC (specify) schedule #40 D.W.V. P-Trap trap seal primer connector, with 2" (51) 3" (76), or 4" (102) (specify) pipe connections, and a 1/2" (13) or 5/8" (16) (specify) brass compression fitting connection to attach to a trap seal primer water supply line. The MIFAB MI-600 Series of P-Trap trap seal primer connectors meet the ASTM D-2661 and ASTM D-2665 Standards.

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    The MI-TEMP holds a selected water temperature to within one degree from any constant hot water supply regardless of pressure changes in the supply lines. It ensures a blend of mixed hot and cold water at the shower head and is fully automatic - only one moving part will equalize the hot and cold supply line pressures. As supply line pressures fluctuate, the brass piston will move enough to compensate for the change in pressure and release water only at the preselected temperature.

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    MI-100 Engineered for Equal Distribution at All Ports
    The MI-100 is engineered for equal distribution of water to all ports. It's the perfect solution to keep sewer gas from entering the building from seldom used floor drains. The MI-100 can be located anywhere in the water supply and is engineered to permit the building owner to adjust the frequency and amount of water delivery through a timer and solenoid valve. A manifold ensures that a minimum of 2 ounces of water are delivered to every port over a twenty-four hour period. The unit must be mounted 12" above the finished floor for every 20' of water supply line. The MI-100 can be installed with a cabinet cover. The system is capable of priming from 1 to 35 floor drain traps. The MI-100 is practical to serve many floor drain traps in infrequently used buildings such as convention centers and sports facilities. The MI-100 is made of lead free materials that touch water.

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    The MI-200 is engineered to connect to the voltage building energy management system used to manage the services in commercial, educational and institutional buildings. It can be located anywhere in the water supply. A manifold is provided as part of the assembly so that up to 5 drains can be served. The MI-200 is practical for infrequently used buildings such as convention centers and sports facilities. The MI-200 is manufactured in accordance with ANSI/ASME A112.1.2 air gap in plumbing systems Standard. UA1818 access door is suggested for access to the MI-200 when installed into the wall.

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    MI-300 Electronic Trap Seal Primer
    The MI-300 is manufactured with a solenoid valve, air gap manifold and electronic controller. The water discharge frequency can be adjusted to meet the building's needs. The MI-300 can be located anywhere in the water supply. A manifold is connected to the bottom of the MI-300 to serve up to 5 drains. The MI-300 is practical for infrequently used buildings such as convention centers and sports facilities. The MI-300 is manufactured in accordance with ANSI/ASME A112.1.2 air gap in plumbing systems Standard. UA1818 access door is suggested for access to the MI-300 when installed in the wall.

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    Specification: MIFAB® Series MI-300-BP, electronic trap seal primer system with copper air gap, electrical brass body ½" Stainless steel solenoid valve, and plastic manifold with distribution ports. A battery pack provides power. Also included is a manual override switch, 5 amp breaker, 24 hour timer with relay and adjustable delay. The entire assembly is tested and certified to the ASSE 1044 Standard. 100 p.s.i. operating pressure.
    Function: The MI-300-BP is ideal for facilities in remote areas that do not have access to power. The battery pack included with the MI-300-BP provides the necessary power to operate. The water discharge frequency can be adjusted to meet the building's needs. It can be located anywhere in the water supply. The MI-300-BP is manufactured in accordance to the ANSI/ASME A112.1.2 air gap in plumbing systems Standard. The -ENC 12" X 12" enclosure is suggested when the MI-300-BP is installed into the wall. The life of the battery pack is six months.

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    Specification: MIFAB® Series MI-300-ENC, enclosed electronic trap seal primer system with copper air gap, electrical stainless steel body ½" solenoid valve, plastic manifold with distribution ports and fabricated steel, white powder epoxy coated enclosure box. Electronic components to include single point power connection at 120VAC, 220 VAC or 24VDC, manual override switch, 5 amp breaker, 24 hour timer with relay and adjustable delay. The entire assembly is tested and certified to the ASSE 1044 Standard. 100 p.s.i. operating pressure.
    Function: MI-300-ENC is practical for infrequently used buildings such as convention centers and sports facilities. It is engineered to connect to the low-voltage building energy management system used to control the services in commercial, educational and institutional buildings. The water discharge frequency can be adjusted to meet the building's needs. It can be located anywhere in the water supply. The MI-300-ENC ismanufactured in accordance to the ANSI/ASME A112.1.2 air gap in plumbing systems Standard.

    The MI-300-ENC is the some product as the MI-300 except that it is assembled within an enclosure for easy installation.

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    Specification: MIFAB's MI-TSP01, MI-TSP-2, and MI-TSP-3 Trap Seal Primers are listed with I.A.P.M.O. and C.S.A. and are tested and certified to the A.S.S.E. Standards 1018.

    MIFAB Model MI-TSP-1 brass trap seal primer with removable poppet, integral vacuum breaker, gasketed access cover, 1/2" (13) N.P.T. inlet and outlet connections, complete with 1/2" (13) sweat connection adaptors, and 1/2" (13) drip line connection.

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    Specification: MIFAB Series MI-600-50 lacquered cast iron trap seal primer adaptor with primer tapping boss with 1/2” (13) I.P.S. tapping for installation between floor drain and deep seal trap.

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MIFAB, Inc.
1321 West 119th Street Chicago, IL 60643
Toll Free: 800.465.2736
Tel: 773.341.3030
Fax: 773.341.3047
E-mail: sales@mifab.com