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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
Item#:
174A-1-50
Manufacturer Item:
0275054
Manufacturer:
WATTS REGULATOR CO
Watts AS-MB-100 Microbubble Air Separator, 1", IPS, 150 psig, 240 deg F, 15 gpm, Forged Brass, 3-12/16" L x 6-15/16" H
    Features a durable brass body construction, corrosion-resistant polyphenylsulfone cOverall Lengthescing media that withstands petroleum based cleaners, glycol anti-freeze
  • Requires no minimum inlet/outlet piping length for proper operation
  • DuoVent air vent assembly has a high-capacity and high-temperature rating
  • Fully serviceable - can be disassembled for inspection and cleaning
  • Bottom tapping for use with series RBFF residential boiler fill fitting
Item#:
AS-MB100
Manufacturer Item:
0858547
Manufacturer:
WATTS REGULATOR CO
Watts Water ASM1-1-1/4 Are Scoop 1-1/4"
Item#:
ASM1-1-1/4
Manufacturer Item:
0858536
Manufacturer:
WATTS REGULATOR CO
Watts Water ASM1-1 Air Scoop 1" FPT
Watts Water ASM1-1
Item#:
ASM1-1
Manufacturer Item:
0858535
Manufacturer:
WATTS REGULATOR CO
Watts Water BD911S Bronze Combination Fill Valve Feeder and Backflow Preventer, 1/2" NPT
    Pre-assembled for ease of installation
  • Push butTon fast fill with auto-stop to prevent system over-pressurization
  • Dial indicator eliminates need for pressure gauge
  • High capacity fill valve for quick system filling and purging
  • All bronze body construction union solder x NPT connections
  • Dial indicator plus or minus 2 psi
  • Series BD911 combination fill valve and backflow preventer consists of a model 9D backflow preventer and model BD1156F feed water pressure regulator in one pre-assembled unit
  • Combination bronze dial set fill valve
Item#:
BD911S
Manufacturer Item:
0386468
Manufacturer:
WATTS REGULATOR CO
Watts Regulators series LF100xL temperature and pressure relief valves are used in water heater and hot water storage tank applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 105000 BTU. They feature a Lead Free copper alloy body with MNPT and FNPT outlet connections, unique thermostat with special thermo-bonded coating, and a test lever. The combined 2 in 1 temperature and pressure relief valve provides the least expensive and proven means for protection against both excessive temperature and pressure emergency conditions.
    Unique thermostat with special thermo-bonded coating
  • Stainless steel springs
  • Thermostat is accurate and proven and exclusively designed and manufactured by Watts
  • 8" length thermostat
Item#:
B147-3A
Manufacturer Item:
0066110
Manufacturer:
WATTS REGULATOR CO
Watts Regulator series 374A boiler pressure relief valves are used in hot water boiler applications to protect against excessive pressure on all types of hot water heating boiler equipment. It consists of an iron body construction with forged bronze inlet connections, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series 374A 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.
    Iron body with forged brass inlet
  • Seat located above drain, water cant be trapped and sediment cant foul seat
  • Non-mechanical seat-to-disc alignment will not stick or freeze
  • Each hot water space heating boiler shall be equipped with a pressure relief valve set to relieve below the maximum boiler working pressure
  • Non-metallic disc-to-metal seating
  • Bronze inlet wetted parts
Item#:
B145-9A
Manufacturer Item:
0353030
Manufacturer:
WATTS REGULATOR CO
Watts 9DM3 Forged Brass Dual Check Backflow Preventer with Intermediate Atmospheric Vent, 1/2", Female Union
    It 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
  • For continuous pressure, non-health hazard applications in smaller supply lines
  • It features a primary check valve utilizing a rubber disc seating against a mating rubber part to ensure tight closing
  • A secondary check valve utilizes a rubber disc-to-metal seating
  • In the event of fouling of the downstream check valve, leakage would be vented to atmosphere through the vent port thereby safeguarding the potable water system
  • True line-sized construction allows the check modules to open further allowing dirt and debris to pass more freely reducing check fouling
  • Maximum flow at low pressure drop
  • Furnished with union connections to facilitate removal and replacement for maintenance
  • Compact for economy combined with performance
  • Design simplicity for easy maintenance
  • Can be installed vertically or horizontally
Item#:
B146-70
Manufacturer Item:
0061935
Manufacturer:
WATTS REGULATOR CO
Watts Water 9DM2 Forged Brass Dual Check Backflow Preventer with Intermediate Atmospheric Vent, 3/4", Female Union
    It 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
  • For continuous pressure, non-health hazard applications in smaller supply lines
  • It features a primary check valve utilizing a rubber disc seating against a mating rubber part to ensure tight closing
  • A secondary check valve utilizes a rubber disc-to-metal seating
  • In the event of fouling of the downstream check valve, leakage would be vented to atmosphere through the vent port thereby safeguarding the potable water system
  • True line-sized construction allows the check modules to open further allowing dirt and debris to pass more freely reducing check fouling
  • Maximum flow at low pressure drop
  • Furnished with union connections to facilitate removal and replacement for maintenance
  • Compact for economy combined with performance
  • Design simplicity for easy maintenance
  • Can be installed vertically or horizontally
Item#:
B146-71
Manufacturer Item:
0061888
Manufacturer:
WATTS REGULATOR CO
Watts Regulaot series 40L, 40xL automatic reseating temperature and pressure relief valves are used in commercial water heater applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters. They feature a bronze body with NPT male inlet and NPT female outlet connections, unique thermostat with special thermo-bonded coating, tamper-resistant bonnet screws, automatic reseating feature, and test lever. Model 40L has a short thermostat for installation directly in available tank tapings. Model 40xL has an extension thermostat for installation in the hot water outlet within the allowable distance from the top of the tank. Series 40L, 40xL valves are ASME rated and CSA listed.
    The combined 2-in-1 temperature and pressure relief valve provides the least expensive and proven means for protection against both excessive temperature and pressure emergency conditions
  • Fully automatic temperature and pressure relief protection for domestic hot water supply tanks and heaters
  • Includes test lever and extension thermostat for installation in hot water outlet within the allowable distance from the top of the tank
  • Non-mechanical seat-to-disc alignment
  • Thermostat is accurate and proven and exclusively designed and manufactured by Watts
  • Tamper-resistant bonnet screws
Item#:
B147-103
Manufacturer Item:
0156731
Manufacturer:
WATTS REGULATOR CO
Watts Regulators series 1450F dual controls regulator and relief Valve are for use in commercial and residential hydronic heating systems to fill the boiler and piping system with water, and to maintain water pressure in the system at all times. It also provides make-up water to the system in the event of system leaks. It consists of an iron and bronze body construction with NPT threaded inlet and outlet connections, an attached iron body, diaphragm relief valve, a tight seating check valve, purge lever for manual purging, and a stainless steel strainer. Series 1450F has high capacity performance and simplified servicing design. It is suitable for use in the boiler feed lines of hydronic heating systems.
    Combination fill valve and safety pressure relief valve
  • Tight seating check valve
  • Purge lever for manual purging
  • High capacity
  • Stainless steel strainer to protect the valve disc from fouling
  • 15 psi set and 30 psi relief valve setting
Item#:
B144-1
Manufacturer Item:
0388798
Manufacturer:
WATTS REGULATOR CO
Dual Float and Switch Assembly 15 psi
    1-piece unit that facilitates installation and ensures the most up-to-date construction
  • Complete float and dual switch assembly
Item#:
B121-1
Manufacturer Item:
0226060
Manufacturer:
WATTS REGULATOR CO
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