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Watts Valves laid its foundation in 1874 to provide high-quality worldwide water solution technologies. Hence, for more than 150 years, Watts has been offering water control and safety products intended for application in the water drainage, irrigation, HVAC and rainwater harvesting systems. Read More

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Pressure and Temperature Control ValvesView all

  • Relief Valves

    ASME complaint safety, vacuum relief and steam safety relief valves featuring a stainless-steel spring to control the opening / closing of the seal whenever the spring force exceeds a preset value, and then discharging fluid at the outlet

  • Pressure Regulators

    Used to reduce the inlet pressure of the fluid to a predetermined value, protect the downstream plumbing components and reduce water consumption. Steam and water pressure regulators also available in different connection types and body materials

  • Temperature and Pressure Relief Valves

    ASME and ANSI approved relief valves to protect water heaters and hot-water storage tanks from high temperature (max. 250 degrees F) and pressure (max. 150 psi) levels. Available in bronze, lead-free brass & lead-free copper silicon alloy material

  • Mixing Valves

    Used with water heaters to mix hot and cold water for a safer outlet temperature and to prevent scalding & thermal shock. Follow ASSE and CSA standards and have a maximum flow rate of 23 gpm

  • Bypass Valves

    Poppet-type relief valves used to protect plumbing equipment by allowing excess fluid to be by-passed back to the source. Feature a tee handle to facilitate pressure change and Teflon disc for maintaining positive shut-off. Can handle a maximum pressure of 250 psi

  • Water Pressure Reducing Valves

    ANSI approved valves used to maintain a preset inlet pressure to prevent damage to the piping systems from excessive water / steam pressure. Intended for both domestic and industrial applications in oil lines, autoclaves and single radiators

  • Boiler Drain Valves

    Quarter-turn boiler drains featuring a forged-brass body with adjustable Teflon stem packing and an aluminium tee handle with positive shut-off. Can be used with 1/2- or 3/4-inch pipes in hydronic heating systems

  • Boiler Feed Valves

    Water pressure regulators designed to fill boilers and piping systems with water and maintain continuous pressure. Available in dual-FNPT and FNPT-union ports, with selected models equipped with in-built backflow preventers.

  • Vent Valves

    Provide automatic air venting in cold / hot water distribution and steam systems. Feature brass construction to provide excellent finishing and corrosion resistance. Can withstand pressures up to 150 psi and offered in 1/8, 1/4 & 3/4 inlet size options

FiltrationView all

Check Valves and Backflow PreventersView all

  • Backflow Preventers

    Designed to prevent potable water contamination from the reverse flow of polluted water. Capable of bearing up to 180 psi pressures and have a maximum operating temperature of 180 degrees F

  • Flow Control Check Valves

    Hydronic, universal flow check valves used to provide positive shutoff when circulator is not running and prevent the flow of water to radiation units. Can be easily opened for gravity circulation

  • Backflow Preventer Accessories

    Includes adapters, cap tethers, caps, air gaps and test cocks for easy installation and maintenance of backflow preventer valves. Available in MNPT, NPT and SAE connection ports

  • Backflow Preventer Repair Kits

    Includes repair kits for backflow preventer valves, first and second check valves, relief valves and test cocks. Used for repair and maintenance of backflow prevention systems

  • Backflow Preventer Test Kits

    3- / 5-valve test kits designed to check reduced-pressure-zone backflow prevention assemblies and pressure- / spill-resistant vacuum breakers. Can measure pressures up to 200 psi

  • Check and Foot Valves

    Includes single- and dual-check valves used for preventing the reverse flow of hot or cold polluted water from entering into the potable water supply. Available in 316 stainless steel / brass / bronze / polysulfone material options

  • Vacuum Breakers

    Designed for use with irrigation systems, firelines and industrial process water systems to prevent backsiphonage of contaminants into potable water supply. Can bear pressures up to 150 psi and are offered in GHT, NPT, FIP and FNPT connection types

Pipe Fittings and CouplingsView all

  • Pipe Manifolds

    Easy-to-assemble flowmeter manifolds featuring a modular, singular & flexible design ideal for heating fan coils and hydronic floors, as well as controlling baseboard temperatures. Can connect without the need for additional sealants. Offered in 2, 3 and 4 branch options

  • Water Hammer Arrestors

    Stainless steel / copper / low-lead copper hammer arrestors used with piping systems to absorb shocks caused by a sudden change in flow velocity. Feature a permanent pre-charged sealed air chamber and capable of bearing pressures up to 60 psi

  • Brass Pipe Fittings
  • Dielectric Unions

    Used with water heaters for separating two metal pipes of different materials and to prevent galvanic corrosion. Available in different connection types

  • Pipe Fittings
  • Polyvinylidene Pipe Fittings

Float Valves and AccessoriesView all

  • Float Valves

    Heavy-duty mechanical valves for controlling high capacity water flow in refrigeration and air-conditioning applications. Can be tank- or wall-mounted and are available in bulkhead / FNPT / MNPT connection types

  • Float Balls

    Round- / oblong-shaped float balls used to activate water transfer pumps in open-water tanks or sump pits. Made of plastic / polyethylene / copper and available in float diameters up to 12 inches

  • Float Rods Adapters and Nuzzle Assemblies

    Installation and replacement accessories, such as float rods, adaptors and stem & chain assemblies for use with valves in plumbing systems

  • Float Valve Accessories

    Includes brass / plastic garden hose adapters, nozzle & arm assemblies and universal tank adapters for use with float valves. Available in FNPT x MNPT and GHT x MNPT connection types

  • Float Valves With Float

    Heavy-duty float valves suitable for use with evaporative coolers, refrigerators & automatic livestock watering kits. Can handle a maximum pressure of 100 psi

Tube FittingsView all

Shut-Off ValvesView all

  • Instrumentation Manifold Valves

    Stainless-steel manifold accessory kits comprising a vent & purge assembly, a manifold end cap and isolation ball valves with temperature gauges (32 - 167 deg F). Ideal for balancing flows, detecting air-locked circuits and measuring zone temperature drops

  • Ball Valves
  • Cable Controlled Gas Shut-Off Valves
  • Stop and Waste Valves
  • Water Supply Stops

    Used to shut off the water supply to toilets, faucets, washing machines, ice makers and dishwashers. Capable of withstanding pressures and temperatures up to 250 psi and 180 degrees F, respectively. Offered in 3/8, 3/4 & 1/2 inch inlet size options

Flow Control ValvesView all

Tub/FaucetsView all

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About Watts

The brand's catalogue includes water pressure valves, relief valves, backflow preventers, pressure regulators and tube fittings. The company's anti-siphon backflow preventers are widely used in drainage systems to prevent potable water contamination from the reverse flow of polluted water. These backflow preventers have a lead-free brass / bronze body which provides excellent machinability and fatigue resistance. They are capable of withstanding temperatures and pressures up to 180 degrees F and 180 psi, respectively. Watts pressure reducing valves maintain a reduced outlet pressure to prevent the plumbing units from high-pressure damage, irrespective of the increased inlet pressure demand. These Watts valves feature an adjustment spring to obtain the desired pressure and are suitable for use with sterilisers, single radiators and oil lines. Choose from a broad range of these valves and Watts prv repair kits suitable for pressure reducing valves, such as adapters and air cocks on Raptor Supplies.

Things To Consider

Cross-Reference Alternatives

Watts Valves' MPNs cross individual references to the equivalent Apollo model numbers. So if you are looking for competitor items that are either out of stock or obsolete, chances are Raptor Supplies has the equivalent Watts valves and repair kits available.

Shipping

These Watts valves have pressures ranging from 30 psi to 250 psi. They are heavy or light in weight and therefore require careful packaging as some products might get damaged while shipping. Hence, these Watts valves, prv repair kits, fitting systems, tubing and related accessories are delivered by air freight and courier shipment for minimum downtime.

Major Trade Names

Watts Vision Thermostats

These Watts Vision room temperature controls are designed to control different heating systems up to 50 zones. They come with a colour capacitive touch screen, offering the choice of languages and ena...Read more 

Watts Powerseat Echo Valves

Vestil PRAIL carts are designed to safely and efficiently transport & store Vestil crowd control interlocking barriers. These units feature a removable hitch that can be mounted to either end of the c...Read more 

Watts Competitive Advantages

Watts SmartStream Series UV Systems

These UV disinfection systems protect against parasites, bacteria and other disease-causing microorganisms. They remove dissolved substances, such as iron, hardness minerals, tannin and manganese while eliminating colour and turbidity to improve UV disinfection performance and ensure the production of safe, high-quality water. These water treatment systems come with auto lamp dimming features that minimise energy consumption by up to 46% during no-flow conditions. The automatic lamp identification (wireless RFID) assures replacement of parts with correct fragments and an intuitive touchscreen display enhances usability.

Watts OneFlow Scale Prevention Solutions

These scale prevention solutions use template-assisted crystallisation (TAC) technology to protect plumbing components, pipes and appliances from the negative effects of hard water. The system requires very little maintenance, no backwashing, no salt and no electricity. They are an environmental-friendly and economical alternative to water scale sequestering devices or water softening, having maximum flow rates up to 75 gpm.

Frequently Asked Questions

How does OneFlow work?

OneFlow scale prevention solution improves water quality by neutralising limescale. The TAC media present in the cartridge attract magnesium and calcium minerals in hard water and convert these into microscopic crystals. After formation, these microcrystals break down rapidly and release as inert limescale particles. Thus, the stubborn limescale is reduced in heating elements, pipes and taps.

Does OneFlow remove minerals from water?

OneFlow technology does not remove any minerals from drinking water with an integrated 20-micron carbon filter and the TAC cartridge.

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