Watts Regulators series 174A boiler pressure relief valves are used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment. It consists of a bronze body construction with NPT threaded female inlet and NPT threaded female outlet (drain) connections, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series 174A resists corrosive water conditions, sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief and shall not be used as an operating control.

• Safety relief valves for pressure protection only of all types of hot water heating boiler equipment
• Seat located above drain, water can't be trapped and sediment can't foul seat
• Non-mechanical seat-to-disc alignment will not stick or freeze
• Water seal of high temperature resisting material isolates spring working parts from water during relief

Sid Harvey Item #:B145-2: Replaces Part #:'s : 24572
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Watts Water B145

Watts BBFP Forged Brass Dual Check Backflow Preventer with Intermediate Atmospheric Vent, 1/2", Union Thread

• Dual check valves with intermediate atmospheric vent prevent the reverse flow of hot or cold polluted water from entering into the potable water supply
• It consists of a brass body with stainless steel internal parts, integral strainer, and two durable, tight-sealing, rubber check valves
• Designed for continuous pressure, non-health hazard applications in smaller supply lines

Sid Harvey Item #:B146-70A: Replaces Part #:'s : 2K558,
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Watts Water B146-70

Watts Water B911S Bronze Combination Fill Valve Feeder and Backflow Preventer, 1/2" Sweat

• Pre-assembled for ease of installation
• Easy service accessibility
• High capacity fill valve for quick system filling and purging
• All bronze body construction union solder x NPT connections
• Installed on the boiler feed line to provide make-up water to the boiler
• The valve shall contain a watts regulator model 9D backflow preventer and model 1156 feed water pressure regulator

Sid Harvey Item #:B911S: Replaces Part #:'s : 2K412,
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Watts Water B49-20

Watts Water B911 Bronze Combination Fill Valve Feeder and Backflow Preventer, 1/2" Threaded

• Pre-assembled for ease of installation
• Easy service accessibility
• High capacity fill valve for quick system filling and purging
• All bronze body construction union NPT x NPT connections
• Installed on the boiler feed line to provide make-up water to the boiler
• The valve shall contain a watts regulator model 9D backflow preventer and model 1156 feed water pressure regulator

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Watts Water B911S

Watts Regulator ETX-30 Steel Residential Closed Hot Water Heating Expansion Tank 4.5 Gallon

Thrush B143-3

Watts FBV-3C Forged Brass 2-Piece Full Port Ball Valve, 1/4", Threaded

Bottom-loaded blowout proof stem, virgin PTFE seats, thrust washer, and adjustable stem packing gland, stem packing nut, chrome plated brass ball, brass adapter, and steel handle
• Fluorocarbon elastomer stem O-Ring prevents stem leaks
• Adjustable stem packing gland
• Zinc plated carbon steel handle nut
• Brass packing nut
• Cardboard, mylar coated both sides tag
• Forged lead free copper silicon alloy brass adapter
  
  

  FBV-3C-1/4

Watts LFIS6301 Lead Free Copper Silicon Alloy 2-Piece Full Port Ball Valve with Side Drain, 1", Solder Sweat

Lead free copper silicon alloy ball valves feature a side drain port to drain or vent downstream line when the valve is in the off position
• Full port orifice ensures maximum flow capacity and its ball is wiped clean during each operation of the valve
• Drain port allows draining or venting of downstream line when valve is in the off position
• Virgin PTFE valve seats are standard, suitable for a full range of liquids and gases, consult factory for specific applications
• Ball is wiped clean during each operation of the valve
• Blow-out proof pressure retaining stem
• Vinyl insulator on heavy duty handle
• Fast, quarter-turn open or close operation
• Low operating torque
• Adjustable stem packing gland
• Brass cap, handle and packing nut
• PTFE thrust washer
• Lead free copper silicon alloy adapter
  
  

  Watts Water IS6301

Watts LFIS6301 Lead Free Copper Silicon Alloy 2-Piece Full Port Ball and Waste Valve with Drain Port, 1/2", Solder

Feature a side drain port to drain or vent downstream line when the valve is in the off position
• Full port orifice ensures maximum flow capacity and its ball is wiped clean during each operation of the valve
• Suitable for a full range of liquids and gases, consult factory for specific applications
• Ball is wiped clean during each operation of the valve
• Blowout-proof, pressure retaining stem
• Vinyl insulator on heavy duty handle
• Fast, quarter-turn open or close operation
• Low operating torque
• Adjustable stem packing gland
• Brass handle nut, packing nut and cap, PTFE thrust washer, copper silicon alloy adapter
  
  

  IS630112

Watts LFIS6301 Lead Free Copper Silicon Alloy 2-Piece Full Port Ball and Waste Valve with Drain Port, 3/4", Solder

Feature a side drain port to drain or vent downstream line when the valve is in the off position
• Full port orifice ensures maximum flow capacity and its ball is wiped clean during each operation of the valve
• Suitable for a full range of liquids and gases, consult factory for specific applications
• Ball is wiped clean during each operation of the valve
• Blowout-proof, pressure retaining stem
• Vinyl insulator on heavy duty handle
• Fast, quarter-turn open or close operation
• Low operating torque
• Adjustable stem packing gland
• Brass handle nut, packing nut and cap, PTFE thrust washer, copper silicon alloy adapter
  
  

  IS630134LF

Watts 0559129 Brass Hot Water Extender Tempering Valve, 1/2", Sweat

• Simple maintenance thermostat assembly is easily removed and replaceable as a unit
• Finger tip dial adjustment cap
• Stainless steel springs

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Watts Water LF70A-3/4

Watts Boasts a full line of top-quality ball valves for commercial, residential, and industrial applications, the Watts ball valve product line includes brass, bronze, carbon steel, cast iron, and stainless steel models. If you have a custom project on your hands, we have electric motorized valves to suit your needs. Our portfolio covers a wide span of connection types to  t applications within the Residential, Industrial, and Commercial markets, and thats not all, Watts offers various product accessories and material options such as handle kits or stainless steel ball and stem trims to ful ll a wide range installation requirements.
As of January 4, 2014 Lead Free* ball valves are required in certain applications and/or settings in the United States. Thats why the Watts line includes top quality, fully-tested Lead Free ball valves.

LFFBVS-3C-3/4

Watts Water LF530-C-1/2 Pressure Relief Valve 1/2",
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Watts Water LF3L-100-3/4