Hydronic Heating Specialties watts.
Watts Quality Sets the Standard in Hydronics With Watts hydronic products, you get longer valve life, economical control of heating and cooling zones, energy savings for your customers and fewer callbacks. Watts products control and protect hydronic systems and your reputation. No one else offers Watts quality and design.
Watts Hydronic Heating Specialties 7 9 16 17 18 7 14 19 1 13 20 15 2 6 4 *10 11 11 12 22 22 15 22 8 4a 5 21 22 3 1 AS, AS-T, AS-B or AS-MB Air Separators - - - 10, 11 12 3L, 53L Pressure Relief Valve - - - - - - - - - - - - - - 8 2 9D Backflow Preventer- - - - - - - - - - - - - - - - - - - 5 3 BD, BD-QT, SW, SS Boiler Drain Valve- - - - - - - - 28 13 374A, 174A, 740 Hot Water Boiler Safety Relief Valve - - - - - - - - - - - - -
Feed Water Regulators & Dual Controls Used to fill the boiler and system piping with water and to maintain water pressure in the system at all times. Feed water pressure regulators are also used to provide make up water to the system in the event of system leaks. The fast fill feature is used for speed filling and purging of air from the piping on the initial fill. Dual control units combine the fill valve with a safety pressure relief valve.
Feed Water Regulators & Dual Controls Series 1156F Feed Water Pressure Regulators Iron or Bronze Body B Size: 1⁄2" (15mm) Model S1156F features highest purging capacity furnished with union solder inlet connection performance as well as simplified servicing. A Pressure - Temperature S1156F Maximum working pressure: 100psi (6.9 bar) Maximum temperature: 212°F (100°C) Adjustment range: 10 – 25psi (68.7 – 172.4 kPa) Set at 15psi (103.
Feed Water Regulators & Dual Controls B Series 1450F Iron Body Dual Control A Size: 1⁄2" (15 mm) C Combines construction features of Model 1156F and rugged iron body diaphragm relief valve, set at 30psi (206.9 kPa). 1450F B Pressure - Temperature Maximum Working Pressure: 100psi (6.9 bar) Maximum Temperature: 212°F (100°C) A Models C T1450F – Identical to above except furnished with union threaded inlet connection.
Backflow Preventers Used on boiler feed lines to prevent boiler water from returning to the potable water system. Boiler water may contain chemicals and bacteria that could contaminate the potable water system. Series 9D Dual Check Valve with Intermediate Atmospheric Vent Sizes: 1⁄2" and 3⁄4" (15 and 20mm) 9D Especially made for smaller supply lines. It is typically installed on boiler feed lines to prevent backflow caused by backsiphonage or backpressure.
Backflow Preventers Series 909 Reduced Pressure Zone Assemblies Sizes: 3⁄4" – 2" (20 – 50mm) Provides protection against backpressure or backsiphonage backflow in larger systems or those with chemical additives. Unique design of “air-in/ water-out” principle provides high capacity relief valve discharge perfor mance during the emergency conditions of combined backsiphonage and backpressure with both checks fouled.
Backflow Preventers Series 919 Reduced Pressure Zone Assemblies Sizes: 1⁄4" – 2" (5 – 50mm) Series 919 Reduced Pressure Zone Backflow Assemblies are de signed to protect potable water supplies in accordance with national plumbing codes and water authority requirements. This series can be used in a variety of installations, including the prevention of health hazard cross-connections or for containment at the service line entrance.
Safety Relief Valves The safety relief valve is mounted directly to the boiler to prevent excess pressure buildup in the boiler. The capacity of the relief valve must be greater than the BTU input of the boiler. Series 174A, 374A ASME Water Pressure Relief Valves Sizes: 3⁄4" – 2" (20 – 50mm) Bronze body safety relief valves for pressure p rotection only of all types of hot water heating boiler equipment. Pressure range 30 – 150psi (206.9 kPa – 10.3 bar) with corresponding high BTU/Hr.
Safety Relief Valves Model 3L Poppet Type Pressure Relief Valve Size: 3⁄4" (20mm) Provides protection against excessive pressure. Used on domestic storage tanks or tankless water heaters. Pressure range 75 – 150psi (517.1 kPa – 10.3 bar). Standard settings 75, 100, 125 and 150psi (2.1, 6.9, 8.6 and 10.3 bar). B Model 3L has ASME construction and is tested, listed and certified by the National Board of Boiler and Pressure Vessel Inspectors.
Safety Relief Valves Series 315-M1, 415-M1 Steam Safety Valves B ASME rated steam safety relief valves up to 643 lbs./hr. (292 kg./hr). Also available with lower settings, such as 8 lbs. (3.6 kg.) for pressure cooker and steam cleaning requirements, which are not ASME rated. Consult factory for rating and quotation.
Automatic Air Vent Valves DuoVent High Capacity Air Vents with Manual Vent Feature Sizes 1⁄8" and 1⁄4" (3 and 8mm) NPTF Provides automatic air venting for hot or cold water distribution systems. The manual vent fea ture provides tremendous air elimination capability for lightning fast venting of residential and commercial systems. It utilizes a float to actuate the valve plug, which is located at the top of the valve.
Air Separators Used on hydronic system piping to separate air from water. Series AS, AS-T Heavy Duty Cast Iron Air Separators Sizes: 1" – 3" (25 – 80mm) Series AS air separators are designed for efficient separation of air from water in hydronic heat ing systems. All the Series AS air separators have tappings for the installation of an expansion tank and air vent.
Air Separator Used on hydronic system piping to separate air from water. Series AS-MB Microbubble Air Separator Sizes: 3 ⁄4" – 11⁄4" (20 –32mm) Solder 3⁄4" – 2" (20 –50mm) Threaded and 11⁄4" (32mm) Flanged Series AS-MB Microbubble Air Separator is designed for efficient separation and elimination of entrained air in hydronic heating systems. No minimum inlet/outlet piping length is required for proper operation.
Service Check Valve Used between boiler piping and system components to facilitate the servicing of components such as thermal expansion tanks and float vents without draining the piping. Series SCV Sizes: 1⁄8" – 3⁄4" (3 – 20mm) Service Check Valves facilitate the servicing of components in systems under pressure. They install between the system and the component.
Expansion Tanks Series HPX Boiler Trim Packages Model HPX boiler trim packages contain all the essential trim components of a quality boiler installa tion in a single easy to carry package.
Expansion Tanks Expansion Tanks Series ETA 15 — ETA 240 ASME Pressurized Expansion Tanks for Heating and Cooling Systems Model ETA Tanks are ASME fixed bladder type pre-charged expansion tanks. They are designed to absorb the expansion forces and control the pressure in heating and cooling systems. The water is contained in the heavy duty bladder preventing tank corrosion and waterlogging problems. Features • ASME Section VIII Construction • Heavy Duty Butyl Bladder • Precharged to 12psi (82.
Expansion Tanks Series ET-RA 35 — ET-RA 2000 ASME Pressurized Expansion Tanks for Heating and Cooling Systems Model ET-RA Tanks are ASME removable bladder type pre-charged expansion tanks. They are designed to absorb the expansion forces and control the pressure in heating and cooling systems. The water is contained in the heavy duty bladder preventing tank corrosion and wa terlogging problems. ET-RA expansion tanks reduce tank sizes up to 80%.
Expansion Tanks Series ETX, ETSX Pressurized Expansion Tanks for Heating and Cooling Systems* Series ETX and ETSX Pressurized Expansion Tanks for Heating and Cooling Systems are designed to absorb the increased volume of water created when water is heated. These tanks maintain system pressure below the relief setting of the relief valve. The Series ETX and ETSX’s pre-pressurized steel tank features a durable expan sion membrane that prevents contact of the water with the air in the tank.
Expansion Tanks Quick Sizing Chart Boiler Output Net BTU/H Finned Tube Baseboard Convectors or Unit Heaters 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 125,000 150,000 175,000 200,000 250,000 300,000 350,000 400,000 500,000 600,000 700,000 800,000 900,000 1,000,000 1,200,000 1,400,000 1,500,000 Cast Iron Radiators Cast Iron Baseboard ETX-15 ETX-15 ETX-30 ETX-30 ETX-60 ETX-60 ETX-60 ETX-60 ETX-60 ETX-60 ETX-90 ETX-90 ETX-90 ETSX-40 ETSX-40 ETSX-60 ETSX-90 ETSX-90 ETSX-90 ETSX-90
Purge and Balancing Valves Used on boiler return piping to facilitate removal of air from heating zones on initial fill and to control water flow through circulation loop. A purge and balancing valve also serves as a shutoff valve and a drain valve for each zone or loop.
Isolation Pump Flanges Expansion Tanks Designed to isolate circulator pumps to facilitate circulator pump replacement or repairs. Series IPF Isolation Pump Flanges for Circulator Pumps Sizes: 3⁄4" – 2" (20 – 50mm) Series IPF Isolation Pump Flanges are designed to isolate circulator pumps to facilitate circulator pump replacement or repairs.
Isolation Pump Flanges Series PIPF Isolation Pump Flanges with Purge Port & Swivel Flange Sizes: 3⁄4" – 11⁄4" (20 – 32mm) Series PIPF Isolation Pump Flanges with Purge Port & Swivel Flange are designed to provide circulator pump isolation to facilitate the circulator pump replacement or repair while the integral purge port facilitates system purging.
Isolation Pump Flanges Expansion Tanks Series PIPFM1 Isolation Pump Flanges with Purge Port and Swivel Flange Sizes: 3⁄4" – 11⁄4" (20-32mm) Series PIPFM1 Isolation Pump Flanges with Purge Port and Swivel Flange are designed to provide circulator pump isolation to facilitate circulator pump replacement or repair while the integral 1/2" purge port provides fast system purging.
Thermostatic Mixing Valves Expansion Tanks Used on boiler supply lines to control the temperature of supply water to heating zones by mixing hot boiler water with cooler return water. They are used to provide control of tempered water to the domestic hot water system. They are also used to prevent re-circulation of cold return water to the boiler to prevent condensation in the boiler.
Thermostatic Expansion Tanks Master Mixing Valve Used to provide control of tempered water to the domestic hot water system. Series N170-M3 ASSE 1017* Hot Water Master Tempering Valves Sizes: 3⁄4" – 2" (20 – 50mm) For use on large hot water supply system for mixing hot & cold water for Variety of applica tions to extend the hot water supply. This series uses paraffin-based thermostat to sense and adjust outlet temperature.
Flow Measurement / Balancing Expansion Valves Tanks Used to measure and control the flow of water to individual heating units, assuring proper heat transfer. They are used on pipe risers and headers and at pumps to measure and control flow. Series CSM-61 Sizes: 1⁄2" – 3" (15 – 80mm) Series CSM-61 valves are specifically designed for application on low or medium flow rate HVAC units. Its compact size allows for easy installation and use on crowded piping compart ments.
Flow Measurement / Balancing Valves Series CSM-81-F Sizes: 21⁄2" – 8" (65 – 200mm) Series CSM-81-F valves are designed for application on medium to high volume flow rate HVAC units. The valve construction allows the flow measurement valve to function reliably both as a balancing valve and bubble-tight service valve, in closed hot or cold water service.
Flow Measurement / Balancing Valves Series CSM-91 Sizes: 21⁄2" – 10" (65 – 250mm) For medium or large flow rate HVAC systems, pump packages, and cooling towers. They feature a multi-turn adjustment range for maximum control, pressure differential readout ports on both sides of the valve to allow for easier installation and positive shutoff for servicing equipment.
Low Water Cut-Offs Protect boilers against emergency low water conditions. Series N50 Low Water Cut-offs Size: 1" (25mm) • Protects hot water heating boilers against emergency low water conditions • Used on low pressure process boilers Specifications Models • Float chamber has 1" (25mm) NPT female top and bottom connections.
Hydronic Specialties Series CVY, CVYS Wye Pattern Bronze Check Valves for Water and Steam Service CVY Sizes: 3⁄8" – 2" (10 – 50mm) For industrial and commercial lines to prevent reverse flow. Rating: 125 WSP/200 WOG model Features • Bronze body • Metal to metal seating • Wye type pattern Pressure - Temperature Models CVY – Sizes ⁄ " – 2" (10 – 50mm), IPS threaded connections 38 CVYS – Sizes 1⁄2" – 2" (15 – 50 mm), CxC solder connections, Dimensions — Weights Maximum Steam: 15psi (103.
Expansion Tanks Hydronic Specialties Series OTV-M1 Oil Tank Valves OTV-M1 B Features • 1⁄4-Turn ball valve design • Heavy duty brass • Adjustable packing nut • PTFE seat and packing C A Pressure Working Pressure Non-Shock: 125psi WOG Dimensions — Weights MODEL SIZE DIMENSIONS A in. mm ⁄ M x ⁄ FL ⁄ M x 3⁄8 M OTV-FL-M1 12 OTV-M-M1 12 38 WEIGHT B C in. mm in. mm in. mm lbs. kgs 15 x 10 15 16 4 ⁄ 125 9 16 2⁄ 65 15 16 1 ⁄ 49 .76 .
Hydronic Specialties Series BD-QT Quarter-Turn Boiler Drains Sizes: 1⁄2" and 3⁄4" (15 and 20mm) Provide speed and convenience of quarter-turn ball valve performance for boiler drain or sill cock applications. Uses rugged forged brass body, adjustable Teflon® stem packing, and aluminum tee handle. The 1⁄2" (15mm) model has a dual-pattern combination threaded and solder end by 3⁄4" (20mm) hose connection. The 3⁄4" (20mm) model is available in either solder or threaded ends.
Hydronic Specialties Series GBV 2-Piece, Brass Gas Ball Valves Sizes: 3⁄8" – 1" (10 – 25mm) • Brass two-piece body construction • Available with tee handle or square handle GBV Models GBV – Sizes: 3⁄8" – 1" (10 – 25mm), NPT female connections and tee handle. GBV-FL – Sizes: 1⁄2" x 3⁄8", 1⁄2" x 1⁄2", 3⁄4" x 15⁄16" (15 x 10, 15 x 15, 20 x 24mm), Female NPT x Flare connections and tee handle. K GBV and GBV-FL – rated 20°F – 125°F (-29° – 52°C). CSA approved @ 1⁄2, 2 and 5psi (3.4, 13.8, 34.5 kPa).
Hydronic Specialties Series B6000, B6001† 2-Piece, Bronze, Standard Port for residential, commercial and industrial use Ball Valves Sizes: 1⁄4" – 4" (8 – 100mm) • Glass reinforced Durafill 1⁄2" – 3" (15 – 80mm) or Virgin PTFE 4" (100mm) seats standard • Hard chrome plated brass ball • Sizes 1⁄4" – 2" (8 – 50mm) pressure rated at 150 WSP/600 WOG, 21⁄2" – 4" (50 – 100mm) 400 WOG (non-shock) and 125psi (8.
Expansion Tanks Hydronic Specialties Series FBV 2–Piece, Full Port Bronze Ball Valves Sizes: 1⁄2" – 2" (15 – 50mm) FBV Features • Excellent for throttling and balancing applications • For non-abrasive liquids or gases • Two-piece construction Pressure – Temperature Temperature Range: 0°F – 350°F ( -18°C – 177°C) @ 50psi (3.4 bar) Maximum Working Pressure: 600psi (41 bar) WOG non-shock @ 100°F (38°C) and 125psi (8.
Hydronic Specialties Series FBV-3C, FBVS-3C 2-Piece Full Port Brass Ball Valves Sizes: 1⁄4" – 4" (8 – 100mm) Features FBV-3C • Certified to NSF to NSF/ANSI standard 61/8 • CSA approved threaded valves only 1⁄4" – 3" (15 – 80mm) • Metal to metal adapter body seal to eliminate adapter leaks after soldering • Bottom loaded, blow-out proof stem • Adjustable stem packing gland and stem O-ring • Virgin PTFE stem packing seal, thrust washer, and seats • Complies with MSS-SP-110 FBV-3C – Sizes: 1⁄4" – 4" (8 –
Hydronic Specialties Series FBV-4, FBVS-4 2-Piece, Full Port, Brass Ball Valves FBV-4 Sizes: 1⁄4" – 3" (8 – 80mm) FBVS-4 Features • Certified to NSF/ANSI standard 61/8 • CSA approved threaded valves only 1⁄4" – 3" (15 – 80mm) • Metal-to-metal adapter body seal to eliminate adapter leaks after soldering • Fluorocarbon elastomer stem O-ring prevents stem leaks • Adjustable stem packing gland • PTFE stem packing seal, thrust washer, and seats • Bottom loaded blowout proof stem • Machined chrome plate
Hydronic Specialties K Series GV, GVS , GLV Bronze Gate and Globe Valves † Sizes: 1⁄4" – 4" (8 – 100mm) C open Series GV - bronze gate valves - threaded IPS connections Dimensions — Weights Size (DN) Dimensions in. 1⁄4 3⁄8 1⁄2 3⁄4 1 11⁄4 11⁄2 2 21⁄2 3 4 mm 8 10 15 20 25 32 40 50 65 80 100 in. 15⁄8 15⁄8 13⁄4 115⁄16 21⁄8 23⁄8 21⁄2 27⁄8 31⁄2 315⁄16 43⁄4 A mm 41 41 44 49 54 60 64 73 89 100 121 in.
Hydronic Specialties Series TP Temperature or Pressure Test Plugs TP-T Sizes: 1⁄4" and 1⁄2" NPT (8, 15mm) Take pressure or temperature readings quickly and eliminate the need for leaving costly gauges or temperature recorders on the line. Can be used on various applications of gas, air, water or chemicals to 500psi (34.5 bar). The pressure gauge adapter has a .076 diameter probe of 300 Series stainless steel with brass union nut. The probe operates in either 1⁄4" or 1⁄2" (8 or 15mm) NPT test plugs.
Hydronic Specialties Series DPG1 Pressure Gauges Size: 2", 21⁄2", 3", 4" (50, 65, 80, 100) Bottom Entry Pressure Gauges DPG1 Type: Bottom Entry Case: ABS polymer Window: Kostil polymer A C Connection: 1⁄4" NPT Accuracy: ASME Type "B" Sensing Element: Copper Alloy Bourdon Tube B Welding: Tin Alloy Temperature Working Temperature: -4°F to 176°F (-20°C to 80°C) Dimensions — Weights Model Scale Size (DN) Dimensions A in.
Hydronic Specialties Series DPG3 Pressure Gauges Dial Sizes: 11⁄2", 2", 21⁄2", 3" (40, 50, 65, 80mm) Center Back-Entry Pressure Gauge Type: Center Back-Entry Case: ABS polymer DPG3 Window: Kostil polymer Connection: 1⁄8", 1⁄4" NPT Accuracy: ASME Type "B" A Sensing Element: Copper Alloy Bourdon Tube B Welding: Tin Alloy Temperature Working Temperature: -4°F to 176°F (-20°C to 80°C) Dimensions — Weights Model Scale Size (DN) Dimensions Weight A DPG3-11⁄2 DPG3-11⁄2 DPG3-2 DPG3-2 DPG3-2 DPG3-
Hydronic Specialties Series DPG5 Pressure Gauges Dial Sizes: 2", 21⁄2", 3" (50, 65, 80mm) Top Entry Pressure Gauges Type: Top Entry Case: ABS polymer Window: Kostil polymer Connection: 1⁄8", 1⁄4" NPT DPG5 Accuracy: ASME Type "B" Sensing Element: Copper Alloy Bourdon Tube A Welding: Tin Alloy C Temperature Working Temperature: -4°F to 176°F (-20°C to 80°C) B Dimensions — Weights Model Scale Size (DN) Dimensions A DPG5-2 DPG5-2 DPG5-2 DPG5-2 DPG5-2 DPG5-2 DPG5-2 DPG5-2 DPG5-21⁄2" DPG5-21⁄2" D
Hydronic Specialties Series DPTG1, DPTG3, DPTG3A, DPTG3L Combination Pressure/Temperature Gauges Dial Size: 21⁄2" and 3" (65, 80mm) Type: DPTG1 – Bottom Entry DPTG3 – Center Back Entry DPTG3A – Center Back Entry with Extended Temperature Element DPTG3L – Center Back Entry with Extended Mounting Nut 3" Dial Case: Steel – Black Enamel Window: Kostil Polymer 21⁄2" Dial DPTG3 Connection: 1⁄2" NPT Accuracy: ASME Type "B" Pressure Element: Copper Alloy Bourdon Tube Temperature Element: Bimetal Spiral Spring
Hydronic Specialties Series TBR Bimetal Thermometers A D Dial Size: 3" (80mm) Bottom Entry Type: Bottom Entry B Case: Chromed Steel Window: Kostil Polymer C Stem: Brass Sensing Element: Bimetal Spiral Spring E Bottom Entry TBR Amplifyng Movement: Brass TBR Thermowell: 1⁄2" NPT Brass - snap-in Dimensions — Weights Model Size Scale Probe Size Dimensions weight A TBR-3-2 TBR-3-2 TBR-3-3 TBR-3-3 TBR-3-4 TBR-3-4 TBR-3-4 B C D E in. mm ˚F in. mm in. mm in. mm in. mm in.
Hydronic Specialties Series TBP Pipe-Mount Bimetal Thermometers Dial Size: 21⁄2" (65mm) Type: Pipe Mount TBP Case: Steel, Black Enamel Ring: Chromed Steel Window: Kostil Polymer C Sensing Element: Bimetal Spiral Spring A B Dimensions — Weights Model Size (dn) Scale fixing part Dimensions A TBP-M-21⁄2 TBP-F-21⁄2 in. mm ⁄ 1⁄2 15 15 12 ˚F 32 – 248 32 – 248 spring strip Weight B C in. mm in. mm in. mm lbs. kgs. 21⁄2 21⁄2 63 63 – 11 – 279 78 ⁄ 7⁄8 22 22 .4 .4 .18 .
Hydronic Specialties Series TA Liquid Fill Thermometers A Adjustable Angle Thermometer Scale Size: 9" D Type: Sealed Glass Tube Case: Valox® Lens: Glass B Sensing Fluid: Organic Fill Accuracy: ±1% of Full Scale TA Thermowell: Brass C Dimensions — Weights Model Temp. Range Size Stem Dimensions A TA-9-31⁄2 TA-9-31⁄2 TA-9-31⁄2 TA-9-31⁄2 TA-9-31⁄2 TA-9-6 TA-9-6 TA-9-6 TA-9-6 TA-9-6 Weight B C D °F in. mm in. mm in. mm in. mm in. mm in. mm lbs.
Hydronic Specialties 31⁄16" (78mm) Series FS10-C Paddle-Type Flow Switch Actuated by Liquid Flow for Automatic Control or Safety Devices Used to monitor liquid flow in pipelines servicing water systems, heating systems, air conditioning and processing installations. An automatic control or safety device will start/stop a motor when a flow or no flow condition exists or actuate an alarm when flow is inadequate.
Hydronic Specialties Series 77SM1 Cast Iron Wye Type Strainers with Threaded End Connections Sizes 1⁄4" – 3" (8 – 80mm) For liquid or steam service. Furnished with 250psi (114 kg.) extra heavy iron body. Install strainers up stream to protect valves, regula tors, solenoids and meters from dirt, rust and pipe scale. Self-clean ing can be accomplished by opening the valve or plug connected to the blow-off outlet. Iron retainer cap and gasket, straight threads and tapped for closure plug.
A Watts Water Technologies Company A PG-HHS 1234 USA: Tel. (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com Canada: Tel. (905) 332-4090 • Fax: (905) 332-7068 • www.watts.
