Watts Datasheets for Check Valves
Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves.
Check Valves: Learn more
| Product Name | Notes |
|---|---|
| Complete brine tank assembly including: overflow, grid, safety valve w/ float, air check and well; Available in blue, black, and almond; up to 1,400 lbs salt capacity. | |
| Complete brine tank assembly including: overflow, safety valve w/ float, and air check; Available in blue, black, and almond; 250 lbs salt capacity. | |
| Designed to automatically limit flow rate to a constant, adjustable, maximum by sensing differential pressure across a remote mounted orifice plate (field installed), and close drip-tight when downstream pressure becomes... | |
| Designed to automatically reduce a fluctuating higher upstream pressure to a constant lower downstream pressure regardless of varying flow rates, and close drip-tight when downstream pressure becomes greater than upstream... | |
| Designed to automatically reduce a fluctuating higher upstream pressure to a constant lower downstream pressure regardless of varying flow rates, throttle to sustain a minimum upstream pressure, and close drip-tight... | |
| Designed to control pipeline surges caused by flow reversal by slowly opening and closing at separate adjustable rates. | |
| Designed to minimize pressure surges associated with the starting and stopping of pumps. The valve opens at an adjustable rate upon pump start-up, and closes at an adjustable rate upon... | |
| Designed to open fully or close drip-tight as commanded by the 3-Way Solenoid Pilot, and close drip-tight when downstream pressure becomes greater than upstream pressure. The solenoid may be activated... | |
| Designed to permit flow when upstream pressure is above the adjustable setpoint of the control pilot, and throttle when upstream pressure falls below the adjustable setpoint. The valve also acts... | |
| Designed to permit flow when upstream pressure is above the adjustable setpoint of the control pilot, and throttle when upstream pressure falls below the adjustable setpoint. The valve closes drip-tight... | |
| Lead Free* Brass Maxi-Flo Check Valves feature a Lead Free* cast copper silicon alloy body with NPT female threaded connections. These silent check valves have a low pressure drop and... | |
| Model LFCS check stop valves are designed for use at the hot and cold water inlet supplies for mixing and temper ing valves. Model LFCS valves perform triple duty as:... | |
| Models 600GD-16 (Globe) and 600AD-16 (Angle) are Ductile Iron, reduced port, dual chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. When pressure is applied to the... | |
| Models 600GS-16 (Globe) and 600AS-16 (Angle) are Stainless Steel, reduced port, dual chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. When pressure is applied to the... | |
| Models 605GD-16 (Globe) and 605AD-16 (Angle) are Ductile Iron, reduced port, single chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. This assembly is the only moving... | |
| Models 605GS-16 (Globe) and 605AS-16 (Angle) are Stainless Steel, reduced port, single chamber basic valves that incorporate a two-piece disc and diaphragm assembly. This assembly is the only moving part... | |
| Models 900GD-16 (Globe) and 900AD-16 (Angle) are Ductile Iron, full port, dual chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. When pressure is applied to the... | |
| Models 900GS-16 (Globe) and 900AS-16 (Angle) are Stainless Steel, full port, dual chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. When pressure is applied to the... | |
| Models 905GD-16 (Globe) and 905AD-16 (Angle) are Ductile Iron, full port, single chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. This assembly is the only moving... | |
| Models 905GS-16 (Globe) and 905AS-16 (Angle) are Stainless Steel, full port, single chamber basic valves that incorporate a two-piece disc and diaphragm assembly. This assembly is the only moving part... | |
| Our check valves are made in New Zealand from high grade glass fiber reinforced nylon. Springloaded non-return check valves allow fluid to flow in one direction only, ideal for many... | |
| Quick-Connect union check valves - polysulfone. 3540B-10 - 1/2 in. CTS | |
| Series 007 Double Check Valve Assemblies prevent the backflow of contaminated water into the potable water supply. It consists of a bronze (1/2 to 2 in) body construction that is... | |
| Series 007DCDA Double Check Detector Assemblies prevent the backflow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply. It incorporates a meter... | |
| Series 1000DCV Detector Check Valves are used in fire protection applications to detect leakage or unauthorized use of water in fire or automatic sprinkler systems. It consists of a cast... | |
| Series 1000DCV Detector Check Valves are used in fire protection applications to detect leakage or unauthorized use of water in fire sprinkler systems. This Series features a fabricated steel body... | |
| Series 1000SS Detector Check Valves are used in fire protection applications to detect leakage or unauthorized use of water in fire sprinkler systems. It consists of a stainless steel body... | |
| Series 2000-M5, 2000S-M5 Hydronic, Two-Way, Universal Flow Check Valves are for use in commercial and residential hydronic heating systems to provide positive shutoff when circulator is not running, preventing flow... | |
| Series 2000B Double Check Valve Assemblies prevent the backflow of contaminated water into the potable water supply. It consists of a bronze body construction that is easy to maintain and... | |
| Series 2000BM1-FP / 2000BM2-FP Double Check Valve Assemblies with Gear Operated Slow Close Isolation Valves prevent the backflow of contaminated water into the potable water supply. It consists of a... | |
| Series 2000SS Double Check Valve Assemblies prevent the backflow of polluted water from entering into the potable water supply. It consists of a compact construction and short lay length, ideal... | |
| Series 3000SE Double Check Detector Assembly is ideal for space restricted retrofit installations. It's long life 300 Series stainless steel housing, along with the cartridge check assembly substantially reduces the... | |
| Series 3000SS Double Check Detector Assemblies prevent the backflow of fire protection system substances from being pumped or siphoned into the potable water supply. It consists of a compact construction... | |
| Series 6 Brass Midi Check Valves are used in general industrial and plumbing applications. They feature a brass body with NPT female threaded end connections and positive back stop. Series... | |
| Series 600-Z3 Steam Check Valves are used in high cycle steam applications. They feature a bronze body heavy internal construction for longer life, conical 316 stainless steel disc for full... | |
| Series 601, 601S Bronze Maxi-Flo Check Valves are used to prevent the effects of water hammer in the piping system. They feature a bronze body, Viton disc and integral brass... | |
| Series 709DCDA Double Check Detector Assemblies prevent backflow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply. It incorporates a meter to... | |
| Series 719 Double Check Valve Assemblies are designed to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements. It consists of a... | |
| Series 757, 757N Double Check Valve Assemblies prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. Its compact housing consists of... | |
| Series 757DCDA, 757NDCDA Double Check Detector Assemblies prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. Its compact housing consists of... | |
| Series 774 Double Check Valve Assemblies prevent the backflow of polluted water from entering into the potable water supply. It consists of a compact construction and short lay length, ideal... | |
| Series 774DCDA Double Check Detector Assemblies prevent the backflow of fire protection system substances from being pumped or siphoned into the potable water supply. It consists of a compact construction... | |
| Series 912HP High Pressure Hose Drop Dual Check Vacuum Breakers prevent the reverse flow of polluted water from processing and rendering areas from entering into the potable water supply. It... | |
| Series 9BD Dual Check Vacuum Breakers for Vending Machine Water Supply Lines prevent the reverse flow of contaminates, such as carbon dioxide gas and carbonated water, from entering the potable... | |
| Series 9D 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... | |
| Series ACVW-125 Cast Iron Silent Check Valves are designed to prevent water hammer effect. The conical spring design allows the closure disc to travel more distance than other valves of... | |
| Series ASCV Anti-Siphon/Chemigat ion Check Valves are used to prevent backflow of mixtures of water and chemicals into the water supply. The spring swing silent check valve is extremely efficient. | |
| Series C200, C200N Double Check Valve Assemblies prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. Its compact housing consists of... | |
| Series C300, C300N Double Check Valve Assemblies prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. Its compact housing consists of... | |
| Series FPP (Plain) and FFF (Flanged) Check Valves are designed to permit free flow in one direction and to prevent return flow in the opposite direction. The unique design of... | |
| Series ICV-125-2-2-T Cast Iron Wafer Check Valves are used in commercial and industrial HVAC applications to prevent water hammer and reverse fluid flow in water lines. They feature a cast... | |
| Series ICVF-125 Cast Iron Silent Check Valves are used in commercial and industrial HVAC applications to prevent water hammer and reverse fluid flow in water lines. Their conical spring design... | |
| Series LF007 Lead Free* Double Check Valve Assemblies prevent the backflow of contaminated water into the potable water supply. It consists of a Lead Free* cast copper silicon alloy (1/2... | |
| Series LF2000B Double Check Valve Assemblies prevent the backflow of contaminated water into the potable water supply. It consists of a Lead Free* cast silicon copper alloy body construction that... | |
| Series LF6 will operate efficiently in silence all of the functions of a swing check or vertical lift check valve. These are not suggested for installation in sewage ejector piping. | |
| Series LF601, LF601S Lead Free* cast copper silicon alloy Maxi-Flo Check Valves are used to prevent the effects of water hammer in the piping system. They feature a Lead Free*... | |
| Series LF709 Lead Free* Double Check Valve Assemblies prevent the reverse flow of polluted water from entering into the potable water supply. It has a modular check design for easy... | |
| Series LF719 Double Check Valve Assemblies are designed to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements. It consists of a... | |
| Series LFH7C Lead Free* Dual Check Valve with Hose Connection prevent the reverse flow of polluted water from entering into the drinking water supply at individual outlets. It consists of... | |
| Series LFWCV, LFWCVS Lead Free* Brass Swing Check Valves are used to prevent reverse fluid flow in water and steam applications. This series features metal-to-metal seal, either threaded NPT or... | |
| Series M200, M200N Double Check Valve Assemblies are specifically designed for high flow fire systems to prevent the backflow of pollutants that are objectionable but not toxic, from entering into... | |
| Series M200Na Double Check Valve Assemblies are specifically designed for high flow fire systems to prevent the backflow of pollutants that are objectionable but not toxic, from entering into the... | |
| Series M300, M300N Double Check Valve Assemblies are specifically designed for high flow fire systems to prevent the backflow of pollutants that are objectionable but not toxic, from entering into... | |
| Series M300Na Double Check Valve Assemblies are specifically designed for high flow fire systems to prevent the backflow of pollutants that are objectionable but not toxic, from entering into the... | |
| Series SCV Service Check Valves are used in heating applications between boiler piping and system components to facilitate the servicing of components under pressure, such as thermal expansion tanks and... | |
| Series SD-2 Dual Check Valves for Carbonated Beverage Machines prevent the reverse flow of contaminated water, such as carbon dioxide gas and carbonated water, from entering into the potable water... | |
| Series SD-3 Dual Check Valves with Atmospheric Port & Strainer for Carbonated Beverage Machines prevent the reverse flow of polluted water, such as carbon dioxide gas and carbonated water, from... | |
| Series SS007 Stainless Steel Double Check Valve Assemblies provide protection to the potable water supply at non-health hazard cross-connections. Series SS007 is ideal in applications where the downstream liquid is... | |
| Series SS07F Stainless Steel, Single-Detector Check Valves for Fire Sprinkler Systems are used in fire protection applications to detect leakage or unauthorized use of water in fire sprinkler systems. It... | |
| The Colt LFC300, LFC300N Double Check Detector Assemblies are used to prevent backflow of pollutants, that are objectionable but not toxic, from entering the potable water supply system. The Colt... | |
| The LFN170 CSUT Lead Free* Master Tempering Valve Series is designed for use in commercial and institutional applications, to mix hot and cold water to reduce high service water temperature... | |
| The Maxim LFM300, LFM300N Double Check Detector Assemblies are used to prevent backflow of pollutants, that are objectionable but not toxic, from entering the potable water supply system. The Maxim... | |
| The N170 CSUT Master Tempering Valve Series is designed for use in commercial and institutional applications, to mix hot and cold water to reduce high service water temperature to the... | |
| The Series 3000BM1 Double Check Detector Assembly (DCDA) is specifically designed to protect against possible backpressure and backsiphonage conditions for non-health hazard (i.e., pollutant) application in accordance with Local Governing... | |
| The WATTS ACV Backpressure or Sustaining Control Valve with Hydraulic Check Feature is designed to permit flow when upstream pressure is above the adjustable setpoint of the control pilot, and... | |
| The Watts ACV Combination Pressure Reducing and Check Valve is designed to automatically reduce a fluctuating higher upstream pressure to a constant lower downstream pressure, and close drip-tight when downstream... | |
| The Watts ACV Models M400 and M1400 are full port, single chamber basic valves that incorporate a two-piece disc and diaphragm assembly. This assembly is the only moving part within... | |
| The Watts ACV Models M518 and M1518 are full port, dual chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. This assembly is the only moving part... | |
| The WATTS ACV Models M6400 and M61400 are reduced port, single chamber basic valves that incorporate a two-piece disc and diaphragm assembly. This assembly is the only moving part within... | |
| The Watts ACV Models M6518 and M61518 are reduced port, dual chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. This assembly is the only moving part... | |
| The Watts ACV Models S400 and S1400 are full port, single chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. This assembly is the only moving part... | |
| The Watts ACV Models S518 and S1518 are full port, dual chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. This assembly is the only moving part... | |
| The Watts ACV Models S6400 and S64000 are reduced port, single chamber basic valves that incorporate a two-piece disc and diaphragm assembly. This assembly is the only moving part within... | |
| The Watts ACV Models S6518 and S61518 are reduced port, dual chamber basic valves that incorporate a two-piece telescoping disc and diaphragm assembly. This assembly is the only moving part... | |
| The WATTS ACV Pressure Reducing and Check Valve is designed to automatically reduce a fluctuating higher upstream pressure to a constant lower downstream pressure regardless of varying flow rates, and... | |
| The WATTS ACV Pressure Reducing and Sustaining Control Valve with Hydraulic Check Feature is designed to automatically reduce a fluctuating higher upstream pressure to a constant lower downstream pressure regardless... | |
| The Watts ACV Pressure Sustaining and Solenoid (On-Off) Control Valve with Hydraulic Check Feature is designed to permit flow when upstream pressure is above the adjustable setpoint of the control... | |
| The WATTS ACV Pump Control Valve is designed to minimize the surges associated with the starting and stopping of pumps. The valve opens at an adjustable rate upon pump start-up,... | |
| The WATTS ACV Rate of Flow Control Valve with Hydraulic Check Feature is designed to automatically limit flow rate to a constant, adjustable, maximum, and close drip-tight when downstream pressure... | |
| The WATTS ACV Solenoid Control Valve with High Capacity Pilot System and Hydraulic Check Feature is designed to open fully or close drip-tight as commanded by a 3-Way Solenoid Pilot,... | |
| The WATTS ACV Solenoid Control Valve with Hydraulic Check Feature is designed to open fully or close drip-tight as commanded by a 3-Way Solenoid Pilot, and close drip-tight when downstream... |