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Watts 0066440 Series LLL100XL 3/4 in. Bronze MNPT x FNPT 210 Relief ValveVendor WATTSSKU: 66440Product DescriptionThe Watts 0066440 Series LLL100XL 3/4 inch Bronze MNPT x FNPT 210 Relief Valve is designed for effective pressure relief in various systems. This valve features a durable bronze body, making it suitable for water, oil, and air applications. Stainless steel spring mechanism...
- $53.06
- $53.06
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Watts 0121346 Series LF100XL 3/4 in. Copper Silicon Alloy MNPT x FNPT 125# 210 Relief ValveVendor WATTSSKU: 121346Product DescriptionThe Watts 0121346 Series LF100XL Relief Valve offers top-grade protection for hot water supply systems. This 3/4 inch relief valve is designed to address both temperature and pressure concerns in water heaters and tanks. It features a lead-free copper alloy body, male NPT...
- $95.36
- $95.36
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Watts 0590722 1/2 FV4 Auto Air VentVendor WATTSSKU: 590722Product DescriptionThe Watts 0590722 1/2 FV4 Auto Air Vent provides reliable automatic air venting for both hot and cold water distribution systems in commercial and residential hydronic heating applications. Constructed with a brass body and cover, this vent valve also features a silicone rubber...
- $55.48
- $55.48
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Watts 0792036 Series LF288A FNPT Brass 1/4 in. 125 psi BFP Vacuum BreakerVendor WATTSSKU: 792036Product DescriptionThe Watts 0792036 Series LF288A FNPT Brass 1/4 in. 125 psi BFP Vacuum Breaker is designed to prevent back-siphonage of contaminated water into a potable water supply. This device ensures the safety of drinking water in various settings, including laboratories and other health...
- $143.47
- $143.47
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Watts 0066606 Expansion Tank 4.5 Gallon 1/2 NPTVendor WATTSSKU: 66606Product DescriptionThe Watts 0066606 Expansion Tank is designed for residential and commercial hydronic heating systems. This 4.5-gallon tank manages thermal expansion and maintains system pressure. Its pre-pressurized steel structure and butyl diaphragm ensure long-lasting performance. 4.5-gallon capacity 1/2-inch MNPT connection Precharged to 12 PSI...
- $88.87
- $88.87
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Watts 0121327 Series LF3L 3/4 in Copper Alloy MNPT x FNPT 100# 210 Relief ValveVendor WATTSSKU: 121327Product DescriptionThe Watts 0121327 Series LF3L 3/4 in. Copper Alloy MNPT x FNPT 100# 210 Relief Valve offers reliable performance in various plumbing applications. Built with high-quality copper alloy and designed to provide effective relief at 100 PSI and 210 degrees Fahrenheit. Flanged end...
- $159.09
- $159.09
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Watts 0555176 Check Valve 3/4 NPT LF600 Cast Copper FNPTVendor WATTSSKU: 555176Product DescriptionThe Watts 0555176 Check Valve features a 3/4-inch NPT connection and is part of the LF600 series. It is constructed from lead-free brass, ensuring durability and compliance with safety standards. Designed for various applications, this valve can be installed in horizontal or vertical...
- $128.41
- $128.41
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Watts 0556050 Series LF4L 3-4 in. Copper Alloy MNPT x FNPT 150# Relief ValveVendor WATTSSKU: 556050Product DescriptionThe Watts 0556050 Series LF4L 3-4 in. Copper Alloy MNPT x FNPT 150# Relief Valve is designed to protect against excessive pressure in plumbing systems. This valve is constructed from lead-free copper alloy and features both male and female NPT threaded connections. It...
- $200.68
- $200.68
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Watts 0856740 1 CSM-61 Flow Monitor ThreadedVendor WATTSSKU: 856740Product DescriptionThe Watts 0856740 1 CSM-61 Flow Monitor Threaded Valve is essential for monitoring system flow in HVAC units. With a compact design and bronze body construction, it ensures accurate flow measurement in low to medium flow rate HVAC units. Accurate flow measurement Bi-directional...
- $277.90
- $277.90
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WATTS 055600000 LF100XL Temperature/Pressure Relief Valve 3/4 Inch 150psi 210FVendor WATTSSKU: 556000Product DescriptionThe Watts LF100XL Temperature/Pressure Relief Valve is engineered for optimal performance in water heater and hot water storage tank applications. This valve ensures automatic temperature and pressure protection, featuring a durable copper alloy body with MNPT x FNPT connections. Lead-free, copper alloy construction...
- $40.97
- $40.97
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Watts 0009128 LFU5B-Z3 3/4 Inch Pressure Reducing ValveVendor WATTSSKU: 9128Product DescriptionEnsure optimal water pressure with the Watts LFU5B-Z3 Pressure Reducing Valve, engineered for reliable performance in residential, commercial, and industrial settings. This valve is crafted from lead-free cast copper silicon alloy, featuring a female union by FNPT connection, suitable for water pressures up...
- $598.42
- $598.42
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WATTS 0556031 LFN36M1 MNPT 15 PSI Brass Vacuum Relief ValveVendor WATTSSKU: 556031Product DescriptionThe Watts 0556031 vacuum relief valve effectively prevents vacuum conditions that could siphon water from systems, thus damaging equipment. Its low profile and lead-free brass body make it a top choice for professional installations. Lead-free brass construction ensures water safety and durability. Easy...
- $30.33
- $30.33
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Watts 0383020 Pressure Relief Valve 30 psi 1-1/4 in Nominal FNPTVendor WATTSSKU: 383020Product DescriptionWatts, 0383020, is a pressure relief valve designed for hot water space heating boilers. This valve protects against excessive pressure while offering reliability and efficiency. It features iron body construction with expanded outlet connections. Ideal for various hot water space heating applications. Automatically...
- $708.31
- $708.31
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Watts 0274836 174A Bronze Water Pressure Relief Valve 3/4 Inch FNPT 150 PSIVendor WATTSSKU: 274836Product DescriptionThe Watts 174A model is a robust bronze water pressure relief valve designed for installation in hot water heating and domestic supply boiler systems. It efficiently manages pressures up to 150 psi, ensuring both safety and performance. This product features a 3/4 inch...
- $157.40
- $157.40
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Watts 0556008 LF40XL-4 Lead Free T&P Relief Valve 150 psiVendor WATTSSKU: 556008Product DescriptionThis Watts 0556008 LF40XL-4 Lead Free T&P Relief Valve provides reliable temperature and pressure protection for commercial water heater applications. Made with a lead-free brass body, it features a male NPT inlet and a female NPT outlet, a unique thermo-bonded coating on the...
- $596.70
- $596.70
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Watts 0067452 Bronze Radiator Angle Valve 1 Inch FIP x Male UnionVendor WATTSSKU: 67452Product DescriptionExplore the robust Watts 0067452 Bronze Radiator Angle Valve designed for professional-grade steam and hydronic heating systems. This durable valve offers efficient shutoff with its rising stem and features a composition disc for long-lasting use. Rising stem operation ensures reliable flow control. Constructed...
- $192.05
- $192.05
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Watts 0061935 Series 9D M3 Dual Check Valve Backflow Preventer with Intermediate Atmospheric Vent, 1/2 Inch, Union FNPT, Forged Brass, DomesticVendor WATTSSKU: 61935Watts 0061935 Dual Check Valve Backflow Preventer with Intermediate Atmospheric VentEnsure the safety and functionality of your water systems with the Watts 0061935 Dual Check Valve Backflow Preventer. Particularly crafted for smaller supply lines, this unit is ideal for laboratory equipment, processing tanks, sterilizers,...
- $100.16
- $100.16
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Watts 0121479 LF174A-125 Pressure Relief Valve 3/4 Inch 125 PSIVendor WATTSSKU: 121479Product DescriptionThe Watts 0121479 LF174A-125 is a 3/4 inch pressure relief valve designed to protect hot water heating systems from excessive pressure. Suitable for both domestic and commercial applications, this valve is crafted with robust materials to ensure reliability and longevity. Lead-free bronze body...
- $334.76
- $334.76
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WATTS 0274934 Water Pressure Relief Valve 1 inch 30 PSIVendor WATTSSKU: 274934Product DescriptionThe Watts 0274934 Water Pressure Relief Valve offers reliable performance in regulating water pressure within boiler systems. Suitable for both hot water heating and domestic supply boiler applications, it is crafted for ensuring safety by managing excessive pressures. This valve exhibits a robust...
- $195.07
- $195.07
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Watts 0009154 Series LFU5B-Z3 1 Inch Copper Silicon Alloy Union FNPT x FNPT Pressure Reducing ValveVendor WATTSSKU: 9154Product DescriptionThe Watts Series LFU5B-Z3 Pressure Reducing Valve, MPN 0009154, is essential for managing water pressure in both residential and commercial plumbing systems. This 1-inch copper silicon alloy valve helps reduce incoming water pressure to protect system components and decrease water consumption. Lead-free construction...
- $494.30
- $494.30
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About Watts
Joseph Watts founded our company in 1874 on the belief that water boilers in textile mills shouldn’t explode. What started with a pressure relief valve in a tiny New England machine shop, has paved the way for today’s high-quality, worldwide water solution technologies. From melting ice on entire city blocks from the ground up, to filtering safe drinking water in isolated, weather disaster zones, you need water and water needs Watts.
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