Reviews Double Check Valves

Lisle 22920 8 mm Low Profile Jiffy-Tite Disconnect Tool

  • Disconnects quick connect push-in connectors found on heavy-duty truck air systems and more.
  • Smallest size also works on automatic adjusting air suspension systems for automobiles.
  • Disconnects air systems on brakes, suspension, steering, engine, transmission and other auxiliary equipment.
  • Also disconnects other quick connect push-in fittings, including: flow control valves, check valves, shuttle valves, quick exhaust valves and other function control fittings in compressed air systems.
  • Each tool is double-ended to disconnect air lines even in hard-to-reach areas, angled end allows maximum leverage, smaller end fits in tight spots.
  • Set comes with five popular sizes: 1/8"-5/32.
Check Stock

Wilkins 115-975XL2 1.5-Inch Lead Free Reduced Pressure Backflow Preventer

  • Reduced pressure principle backflow preventer consisting of a pressure differential relief valve located between twoindependently operated spring-loaded center guided check valves, “Y” pattern body.
  • Complete with two full port resilient seated ball valves for shut-off and four resilient seated ball valve test cocks.
  • Pre-plumbed backflow station. Assembly can be of the reduced pressure principle or of the double check type.
Check Stock

KUNTEC Victor Style Cutting Torch CA1350 & 100FC Acetylene Oxygen Welding Cutting Torch Set

  • 90 degree head For use with multiple gas types: Oxy-Acetylene, Propane, Butane, Natural and LP Gases, and Propane.
  • Brass coupling nut & double o-ring tapered seal gives quick gas-tight seal without a tightening wrench..
  • Connection: B fitting (9/16" - 18), 1pc 3#101 cutting nozzle,built in reverse flow check valves no need for accessory check valves.
  • Constructed with high strength alloy, heavy duty stainless steel and durable brass.
  • Package includes: 1 set of torch handle, 1 set of cutting attachment, 1 piece cutting tip.
Check Stock

Victor 0382-0093 315FC 300 Series \VanGuard\ Heavy Duty Torch Handle, 9\ Length

  • Gas Service: Works with all fuel gases (pressure restrictions for different gases).
  • Built in flashback arrestors with no need for accessory flash arrestors.
  • Built in reverse flow check valves with no need for accessory check valves.
  • Features Victor traditional threaded assemblies for economical repair if service is necessary.
Check Stock

Cozyel 12 GPM Air-Operated Air Diaphragm Double Diaphragm Pump Cast Iron 115 PSI Dual Diaphragm Air Pump Petroleum Fluids 1/2 inch Inlet/Outlet QBK-15

  • Air-Operated Double Diaphragm Pump 12GPM 1/2Inch Inlet And Outlet. The diaphragm pump features an externally serviceable air distribution system and all-bolted construction, with convenient operating, are widely used in various industries, such as petroleum, metallurgy, mining, coating material, printing, paper making, water treatment, automotive etc.
  • A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve, butterfly valves, flap valves, or any other form of shut-off valves) to pump a fluid..
  • Rugged construction - resists corrosion for reliable performance and long life.Bolted construction is designed for leak-free fluid handling..
  • Good abrasion resistance and heat resistance..
  • Easy access to ball checks and fluid caps for maintenance and repairs..
Check Stock

uxcell Nickel-Plated Copper One Way Air Check Valve G 1/4 Female Threaded Full Port Check Valve 2Pcs

  • Function: the check valves are applicable for fluid systems to prevent countercurrent liquids, or for pneumatic systems to prevent reverse flow of compressed air.
  • Material and size: the one way check valves are made of PVDF, sturdy, wear-resistant and durable for long-term use.
  • Each check valve measures 6.3 mm/ 1/4 inches, the total length is 38 mm/ 1.50 inches.
  • Features: the pipe port of the check valve is designed with a pagoda-shaped card slot, non-slip and non-toxic, with good airtightness and good adsorption performance.
  • Easy to install: the non-return check valve is easy to install, convenient for you to unscrew and replace.
  • Application: the non-return check valves are widely applied for automotive parts, machinery industry, household appliances, agriculture, etc..
Check Stock

PVC True Union Check Valve 1’’ Slip Swing Full Port Utility Check Valve Sch80 Socket Pool Ball Check Valve for Backflow Prevention

  • 【PVC Ball Check Valve】Schedule 80 PVC ball check valves have a spherical ball inside the valve body which works as a check to allow flow in one direction and close off to prevent back-flow..
  • 【INSTALLATION TIP】PVC union check valves are designed for VERTICAL installations, MUST be used in an upflow position to work properly. Check valves MUST be installed with the valve's flow arrow pointing in the direction of the flow. Do not install valve upside down.（NOTE: NO SPRING).
  • 【PVC Union Check Valve】True union check valve, can be taken apart for cleaning, allows for easy removal without breaking down the piping connection..
  • 【Material】1'' Slip check valve made of PVC material, O-ring with EPDM material, low-temperature-resistant, impact-resistance, ultraviolet-resistance, rust-resistance. Fits for Schedule 80 1 Inch Pipe..
  • 【Application】PVC Swing Check Valve 1’’(DN25) - Non-return or "one way" valve is ideal for flow control, such as commercial plumbing, aquariums, irrigation, swimming pools, water parks and OEM applications..
Check Stock

Cozyel Air-Operated Diaphragm Pump Double Diaphragm Pump 1-1/2 inch Inlet & Outlet Air Diaphragm Pump Dual Diaphragm Air Pump Aluminum Alloy 44 GPM Max 115PSI QBK_40L

  • Air-Operated Double Diaphragm Pump 12GPM 1-1/2Inch Inlet And Outlet. The diaphragm pump features an externally serviceable air distribution system and all-bolted construction, with convenient operating, are widely used in various industries, such as petroleum, metallurgy, mining, coating material, printing, paper making, water treatment, automotive etc..
  • A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve, butterfly valves, flap valves, or any other form of shut-off valves) to pump a fluid..
  • Good abrasion resistance and heat resistance..
  • Rugged construction - resists corrosion for reliable performance and long life.Bolted construction is designed for leak-free fluid handling..
  • Easy access to ball checks and fluid caps for maintenance and repairs..
Check Stock

Air-Operated Double Diaphragm Pump QBK-25L Heavy Duty Dual Diaphragm Air Pump 1 Inlet & Outlet Cast Iron 24 GPM 29-115 PSI for Chemical Industrial Use

  • 【HIGH QUALITY】A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve, butterfly valves, flap valves, or any other form of shut-off valves) to pump a fluid..
  • 【FUNCTION】Our Diaphragm Pumps are compact, light weight, with good abrasion resistance, heat resistance and long service life. Motor design delivers optimum air efficiency..
  • 【NOTE】Not suitable for acid, alkali and other corrosive liquids..
  • 【WIDELY USED】This powerful and efficient Double Diaphragm Pump is perfect for all your needs in every industry,such as petroleum, metallurgy, coating material, mining, printing, paper making, water treatment and automotive, etc..
  • 【BEST SERVICE】100% Refund Guarantee, please be assured the purchase. Our products are sent from the US and can be delivered quickly. If you have any questions or quality issue,please feel free to contact us. NICE CHOOSE will do our best to help you solve the problem..
Check Stock

Ultimate Washer Replacement for General Pump Check Valves KIT001 Kit 1 New Valves + O-Rings

  • Replacement for General Pump Check Valves Kit - Kit 1, Valves and O-Rings (K01).
  • Complete Valve Kit Includes Six O-rings and Six Check Valves Complete.
  • High Quality Material for Best Performance.
Check Stock

Stainless Steel SS316 NPT 2 Swing Check Valve WOG 200 PSI PN16 CF8M

  • Body Material:Stainless Steel 316,200PSI/PN16,ANSI B1.20.1.
  • Working Pressure 200 WOG,Port Types:Female x Female threaded.
  • Temperature range: -60 to 450 degree Fahrenheit,Suitable for full range of liquids and gas.
  • Check valves are used to help direct flow in one direction. The stainless steel bodies and PTFE seals are highly corrosion resistant allowing these check valves to be used with a wide variety of fluids including, but not limited to water, oil, gas, air, light alkali's, acids, biodiesel, fuels and alcohols..
  • Swing check valves are for horizontal use only. When fluid pushes on the stopper in the correct direction, it will "swing" open to allow flow. If flow moves in the opposite direction, it will swing shut. The check valve cannot be used in vertical applications as gravity may affect the function of the swinging motion..
Check Stock

Watts Premier WP560039 Pure UF-3 Ultra Filtration Replacement Water Filter Kit, 5 Count (Pack of 1), Multi

  • Replacement filters for the Pure UF-3 system sediment pre-filter reduces dirt, silt and rust.
  • the carbon pre-filter reduces chlorine taste.
  • the UF membrane reduces unwanted chemicals and the VOC Carbon Block Filter reduces lead and chemicals like MTBE's, atrazine, and benzene.
  • Kit includes two Sediment Filters, two Carbon Block Filters, and one Hollow-Fiber Membrane.
  • This space-saving, compact design allows this system to fit comfortably under your sink, requires fewer tube connections, includes back-flow prevention valves installed between the elements and cartridges have double O-rings so they won't leak.
  • The easy, quick-change push release filter system allows for easy filter change with no need to shut off the water source, is installed with check valves in the filter lid between cartridges to prevent back-flow and shut off valves in each filter head that shuts off the water flow when cartridges are removed.
  • Maximum operating pressure is 80 psi and to maintain top performance replace sediment and carbon block filters every 6 months, UF membrane filter every 12 months.
Check Stock

AQUANEAT Aquarium Airline Tubing, Standard 3/16\ Tubing, Air Pump Accessories,with Air Stones, Air Pump Valves, Suction Cups and Connectors (Clear, 14Feet)

  • Package Includes：14feet clear tubing,2pcs 1" air stones,2pcs check valves,2pcs clear T connectors,6pcs clear suction cups.
  • Airline tubing: standard 3/16" diameter common to most airline accessories.
  • Air stones: durable and can produce fine bubbles continuously to diffuse oxygen efficiently in your fish tank.
  • Check valves: place these air pump check valves in your airline tubing between your air pump and aquarium water to prevent water returning down the air line.
  • Suction cups and T connectors: fit 3/16 inch ID standard airline tubing.
Check Stock