Where conditioning chemicals are introduced into the system, the potable water connection shall be protected by an air gap or a reduced pressure principle backflow preventer, complying with ASSE 1013, CSA B64.4 or AWWA C511. But in each case no matter what size buy a rubber kit to repair the back flow preventer this kit comes with first and second check as well as relief section rubber orings and . For pro-tection against water hammer shock install Watts Model Flow Fountain Water Heater Tank Vat *12" Minimum (305mm) Degreaser IS-800 . (978) 688-1811 Fax: (978) 794-1848 www.watts.com Canada: Tel. Series LFN9 and LFN9C are designed for non-health hazard, continuous pressure applications. Backflow Accessories. Maximum Working Pressure: 125psi (8.6 bar) Features Variety of sizes available Disassembly Instructions 1. This valve is designed for continuous pressure non-health hazard applications in smaller supply lines, such as . Upon finding the main valve, you should turn the ball valve lever to the left in a clockwise direction. I discovered a leak coming from the vent in my Watts 009 backflow preventer when the system was off. Line was leaking badly and was the third thing I replaced that stopped the leaking. Only 6 left in stock - order soon. Features: Compact for easy installation. All turned out well, with the exception of the existing backflow preventer's vent is now dripping water at all times. Unit) is the king of the backflow preventers, made for high-hazard uses. Backflow Preventers Backflow Preventers The risks to drinking water quality from backflow contamination incidents pose a constant threatwhether they're nuisance, non-health hazards, or serious public health events. The options are endless. This is nec-essary to avoid dislodging O-rings or causing damage to internal components. Bleed air at each test cock. I got a call this morning from my cleanup guy. Location: Madison, United States. Fire sprinkler lines where additives or foaming agents are used. Fernox Leak Sealer; Glycol Freeze Protection; Parts & Supplies. Backflow Prevention. Sounds like debris might still be inside somewhere. Watts Backflow Preventer, Series: 9D Series, 1/2 in Nominal, Union FNPT x Union Joint, 175 psi, 250 deg F, Dual Check Backflow, Media: Water, Forged Brass Body, 4-15/16 in W x 2-9/16 in H, Domestic/Import: Domestic . Watts 9D-M3 Backflow Preventer Valve: Failure & Aggravation This Watts 9D-M3 Backflow Preventer Valve feeds water into our furnace, provides an overpressure relief, and prevents heating loop water from re-entering the potable water supply. They have a Lead Free* brass body construction with an atmospheric vent, and NPT female inlet and outlet connections. It is the standard for commercial irrigation installations. Maybe throttle the valve down before the backflow preventer just to add some restriction, might help with the water hammer. Nickname. The following backflow preventer types are available in all sizes: Dual Check Valve - Model GF8080, GF8080E - The Dual Check Valve or double backflow prevention valve is basically a stripped down Double Check Valve without shut off valves and test cocks. There should be a small amount of leaking from the backflow preventer valve at the start but it will seal inside the pipe after a few minutes and provide 100% protection for your plumbing system. How long does a boiler backflow preventer last? However, when I turned the water back on, water continuously sprays out of the water outlet. 1 star 2 stars 3 stars 4 stars 5 stars. Pressure Vacuum Breaker Vent Float Kit. This is nec-essary to avoid dislodging O-rings or causing damage to internal components. Product Overview. A backflow preventer leaking is a serious problem that must be controlled right away. The second check within the backflow is fouled for some reason or the sensing line if this a large one back flow preventer is got corrosion on the inline of sensing line. SharkBite 1 in. 514.335.8413 | 1.855.858.0644 . This Watts 9DM2-CAN-34, 0061888 3/4" Bronze Dual Check Valve Backflow Preventer with Intermediate Atmospheric Vent prevents the reverse flow of hot or cold polluted water from entering into the potable water supply. 100%. There is no one reason for backflow preventer leaks. 1 Test Cock No. With this information, your local irrigation parts supplier can give you the correct repair kits and parts to rebuild your backflow preventer. Dielectric Unions. Valve drips continually from the vent B.1 Fouled first check. SKU: WA0887710 . 2. for pricing and availability. . PVC Leak Stopper Rings; Drip Fittings. On-Sale $13.95 List Price $19.95. Find My Store. B.3 Relief valve piston o-ring not free to move. | WA0887710 . This is not a favorable situation and backflow can be dangerous because it can lead to drinking water from a plumbing system becoming contaminated and unsuitable to use. Plumbing. When the direction of the flow of water reverses on its own in a pipeline or plumbing system, it is called backflow. All parts are genuine and original to the valve. He said backflow preventer leaking was caused by water supply closing. Count on great prices, fast shipping and friendly service every time you order a watts 800m2 1/2-1 vent kit from Zoro. Watts 1 in. Does not matter if the cirulator is on, or off. B.5 Electrolysis of relief valve seat or first. IS-TK-9A Watts TK-9A Backflow Preventer Test Kit SPECIFICATIONS Maximum working pressure - 175 psi. Honeywell FM911 Backflow Preventer and Fill Valve Assembly, 1/2 Inch Union Inlet, 1/2 Inch NPT Outlet, Set at 12 PSI, Adjustable 4-60 PSI Range, Max150 psi, Brass Body, Max 212 deg F. Out of Stock but Available To Order! You must know the make and model of your backflow preventer. BP701 1 in. Fire protection system supply main. Series 911 combination fill valve and backflow preventer consists of a model 9D backflow preventer and model 1156F feed water pressure regulator in one pre-assembled unit. B.4 Excessive back pressure, freezing or water hammer has distorted the second check. Try turning off the water feed so the maximum pressure falls and less water leaks from the heating system. A backflow prevention valve uses a vacuum and ball valve to prevent water from contaminating your drinking water. Gauge - 412" diameter face dual scale 0-15 psid and 0-1 kg/cm2, 2% accuracy full scale. Water Hammer Arrestors. I would remove both check valves as well as the relief valve guts, then replace all {3} covers. Oct 4, 2009. (905) 332-4090 Fax: (905) 332-7068 www.watts.ca When backflow preventer is filled, slowly open the downstream shutoff and fill the water supply system. B.2 Damaged or fouled relief valve seat. When I got there sure enough water was pouring out of the vent. Zurn. flow preventers. vision should be made to always vent above flood level or for a pit drain to ensure an adequate air gap below the relief port. Kit contains bonnet, bonnet O-ring, vent spring, hood and hood screws. When backflow preventer is filled, slowly open the downstream shutoff and fill the water supply system. Proper installation of a device must take into account the presence of a nearby drain, as the relief valve could leak for a variety of reasons. for a drip, watts says; B. Why is water backing up from the boiler supply feed and leaking out of the dual check valve vent. With this information, your local irrigation parts supplier can give you the correct repair kits and parts to rebuild your backflow preventer. Thermostatic Mixing Valves. hammer has distorted the second check. Series: LF909 Small. Additionally, "Apollo "'s backflow preventers process superior pressure drop ratings, boast an industry leading five-year warranty, and are domestic bronze and stainless steel constructed and assembled in the U.S.A. Backflow Preventer Bonnet Repair Kit 0888012. Pressure Vacuum Breaker Bonnet Assembly Kit. WHY THE INSTALLATION OF PROTECT YOUR A BACKFLOW PREVENTER IS . the check valve closes and the breather vent opens, allowing air to enter downstream. Y-type strainers are filters that protect backflow devices by filtering sediment from the system. This is very typical in fire installations. We turned the water back on without incident. Condition: Used. due to pipe scale, dirt or build up of. Shut Off Valves. Shop All Backflow Preventers; Pressure Vacuum Breakers (PVB) Double Check Assemblies (DCA) . These are so expensive that they are valuable in all conditions. Repair Parts. Watts 0061935 - 1/2" 9D-M3 Dual Check Valve w/ Intermediate Atmospheric Vent - "Do not use this item for any installation or repair of potable water applications. not drip continuously from vent. Once you have the correct parts, you are ready to proceed. If your backflow preventer is leaking, just call a reliable Plumbers 911 plumbing contractor to fix it for you. Return Doc. I turned the power off to the bays and turned off the water to the car wash. Fits Watts model 800 series valves. Compact dimensions and easy-to-access designs can speed up your maintenance and repair tasks. in the event of failure for whatever reason, the water can be safely discharged Unknown January 2008 Thanks Mike F. It is important that Series 009 backflow preventers be inspected periodically for any discharge from the relief valve which will provide a visual indication of need for cleaning or repair of check valves. It is also an expensive piece of equipment. Adaptors - (3) 14" threaded coupling adaptors For one, you can try the backflow preventer repair kit. Aug 19, 2014 That's odd that a brand new one would do that. $19.38 . Pex. 9D M3 Backflow Preventer With Atmospheric Vent , 1/2 in Nominal , Union FNPT x Union Joint End Style . . We can even have a situation where the backflow preventer's #1 shut off valve is Outside Stem & Yoke (OSY) while the #2 shut off valve might be a UL butterfly. 2" across poppet FITS BACKFLOWS WITH SHUT OFF VALVES ON IT Fits Conbraco 40-500 series 3/4" or 1" PVB also fits Rainbird 100 1" pvb and Watts 800 3/4"-1" PVB. 197 products. . NEW Watts 3/4 LF909-QT 3/4" Reduced Pressure Zone Backflow Preventer RPZ. from the vent. Sounds to me like you need an expansion tank/hammer arrestor. 10. est:T The 909 and LF909 Series backflow preventer must be Learn how to install correctly a backflow preventer and how to avoid committing the 5 most common mistakes. My question is, how do I know which kind to replace? I usually put shut 2 off valves-1 before the backflow preventer and 1 after the water feed. Backflow preventers designed to be installed with a residential sprinkler/irrigation or sewer system are larger and more complex than those for hoses, and typically cost $100-$600 or more. Summary. Sprinkler Warehouse also supplies backflow prevention repair parts compatible with double check assemblies, pressure vacuum breakers, and reduced pressure assemblies, from a variety of manufacturers. and allow the backflow preventer to fill slowly. Maximum working temperature - 210F. why vented? 10. est:T The 909 and LF909 Series backflow preventer must be B.3 Relief valve piston o-ring not free to move due to pipe scale, dirt or build up of mineral deposits. All that said, how can leaks be fixed? Used, but I think it has one new check valve rebuild kit. This will satisfy the bureaucrat that is preventing you from making a beverage. List Price: $49.99. Model # 1-720AU. Buy It Now. Series 9D Backflow Preventer with Intermediate Atmospheric Vent EQUIPMENT REQUIRED: Valve must be installed per drawing and one (1) flexible hose with adapters furnished for testing. They are non-testable and are typically used by water companies and installed after a water . For instance, it may freeze during the winter and be damaged when it's turned on afterwards. Watts 0063190 - BBFP, 1/2" IPS Backflow Preventer - BBFP Dual Check Valves with Intermediate Atmospheric Vent prevent the reverse flow of hot or cold polluted water from entering into the potable water supply. A persistent slow leaking from the back flow preventer is most commonly caused by debris such as dirt or sand from the domestic water source getting into the seat of the relief valve and keeping it from shutting all the way. Probably true. I see online there are now M2 or M3 versions, mine just says 9D on it. No A.1 Install a spring-loaded, soft seated check . A little over 30 hours later, the backflow preventer is now leaking, probably releasing a full bucket of water and still . These . If water drips continuously from vent, second check is leaking. Combined with the cheapo air vent it will do very little. $15.98. For addi- . Another cause for leaking might be damage to certain parts, which can happen no matter how old the device is. To avoid major water damage, the . I ordered the relief valve service kit, and replaced all of the parts. Meaning Water Will Leak From The Vent Port! There was a backflow situation (supply side pressure is less than the boiler pressure). Ships in 2-3 days. This is the type of backflow preventer that I use on most of my designs. Featured Product WATTS . 1. Use a wrench to remove the nut from the bell cover. They are used in industrial settings where chemicals are connected to water lines, and in municipal water systems to keep undesirable liquids and solids from contaminating plumbing. $21.96 Vacuum Breaker Repair Kit, For Use With Watts Series 800 M2, 1/2 to 1 in , Includes Bonnet O-ring, Float Vent Disc Assembly (Vent Float, Seal and Spring) . Contact or Log In for Pricing; Pressure Vacuum Breaker Vent Float Repair Kit RK800M4V34. Size 0886010 RK 9DM2 T 12", 34" 0886011 RK 9DM3T 12" Kit includes: Primary & Secondary checks, seat and two union seals. Lead free construction. Detects leaks and unauthorized use of water. Backflow preventers prevent contamination of potable water by keeping water from flowing backwards into a water supply line. Turning the Main Water Supply Off. Some leak more than others. Shop All Drip Fittings; Universal Fittings; . 9DS-M3 1/2 Watts Backflow Preventer 1/2" Swt Valve w/ Intermediate Atmospheric Vent Backflow Preventer - 0061952 Your Rating. Kit No. Wye Strainers. BP700 Backflow Preventer SPECIFICATIONS Size: BP700 3/4 in. 1 Test Cock No. It consists of a brass body with stainless steel internal parts, integral strainer, and two durable, tight-sealing, rubber check valves. Series 9DM2, 9DM3 Dual Check with Atmospheric Vent Sizes: 12", 34" (15, 20mm) Note: Model 9DS - Remove union connections before sweating The 9D Dual Check with Atmospheric Vent is designed for use on non-health hazard, Join the experts at Watts as they walk you through the inspection and repair of the 909, 009, 990 and 992 backflow prevention assemblies.watts.com This valve is designed for use on boiler feed lines to provide make up water to the boiler and prevent backflow when supply pressure fails below system pressure. for pricing and availability. Tradename: None. Common repair parts for 009M2 / LF009M2 3/4" - 2". Watts PVB Vent Float Kit 1 in. home to perform a plumbing repair. B.2 Damaged or fouled relief valve seat. The Watts Series 3/8 SD3-MF, SD3-LS-MFxMF atmospheric vent provides a visual indication of failure in the event that the downstream check fails and system back-pressure exceeds the supply pressure.