Top 10 Best Double Check Valve

Package length 2.0. Package width 1.0 . Package height 4.0. Package dimensions 2.0 L x 1.0 W x 4.0 H.

Flush Tool FLUSH provides easy line flushing, saving up to 15 minutes per installation. EZSwap removable pressure vessel reduces repair time and costs, and is serviceable off-line. Design ensures water savings. Stainless steel and durable, UV-resistant reinforced nylon construction offers corrosion-resistance and quick winterization. Reduced labor and repair kit costs save 75 or more during backflow lifecycle ASSE Listed 1015 IAPMO Listed CSA Certified B64.5 AWWA Compliant C510.

Lead free.

Several configuration options ease installation and repairs. Horizontal or vertical installation reduces installation time and associated costs. Comes standard with a union inlet connection and integral body outlet connection. Quality stainless steel springs and low-lead bronze body resist corrosion. ASSE Listed 1024 CSA Certified Meets the requirements of NSFANSI 61 Lead-Free Several configuration options ease installation and repairs Horizontal or vertical installation reduces installation time and associated costs.

The febco series 850 double check valve assemblies are designed for non-health hazard applications. End connections NPT ANSIasme B1.20.3. Max working pressure 175Psi, hydrostatic test pressure 350Psi, temperature range 32-140 degrees. Valve body - Bronze, elastomers - silicone, springs - stainless Steel.

HYDRO MASTER Brass Dual Check Valve, 12 FNPT, Solid Brass, Max 150PSI-180F.

Lead Free bronze construction for durability and compliance. The check seats and discs are replaceable so repairs are economical. Modular compact construction is easy to install and maintain and no special tools are required. One cover design for ease of maintenance. Test cocks are top mounted for easy access.

Protects potable water supplies from being contaminated due to back-siphonage andor backpressure. Ideal for non-health hazard applications in continuous-pressure piping systems, at cross-connections and for contaminants at service line entrances. Compact modular design features a lead-free bronze body NPT end connections silicone elastomers quarter-turn ball valve shutoffs top-mounted test cocks two in-line independent positive seating check modules captured stainless steel springs and replaceable check discs and seats. Top-entry access and single access cover facilitates in-line repairs. Size is 3 x 5 x 10.75 inches.

UPVC Non-return ValveSchedule 80 UPVC 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 TIP12inch UPVC slip check valves have NO SPRING, 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. Please do NOT install valve upside down.. UPVC Union Check ValveIt is a full bore UPVC check valve with a union on each side, can be taken apart for cleaning, allows for easy removal without breaking down the piping connection, which is convenient for future cleaning and maintenance.. Material12 double true union check valve made by clear UPVC, the body is all transparent with a little bit blue color, EPDM O-Ring, PTFE Seat , can be used for acid and alkali, smooth inner wall, small loss of fluid fluidity, dirt is not easy to adhere to the smooth pipe wall, excellent weather resistance, and can not be corrupted by bacteria and fungi.. UPVC Full Port Check ValveThis 12in UPVC union check valve has a full port for maximum water flow. Max Pressure is 235 PSI 16 Bar, Max Temperature is 7021. Fits to pipe measures 12 inch socket end connection.. ApplicationUPVC Swing Check Valve 12DN15 - Non-return or one way valve is ideal for flow control, such as commercial plumbing, aquariums, irrigation, swimming pools, water parks and OEM applications. transparent and visible can see the work situation directly..

PREVENTS backflow and back-siphonage of water. INSTALLATION ideal for a tight space, and can be installed horizontally or vertically. COMPATIBLE WITH PEX, copper, CPVC and PE-RT pipe. DESIGNED TO prevent polluted water from entering the potable water supply system by stopping the reverse flow of water into supply lines.

This double pilot operated check valve is designed to hold hydraulic cylinders and prevent them from drifting down while your directional control valve is in the neutral position.. At rest the check valves remain seated, blocking flow from entering and exiting the cylinder and locking the cylinder in place.. Flow Rating 11 GPM, Pressure Rating 5000 PSI, Pilot Ratio 41, Port Size 6 SAE O-Ring Boss 916-18 Thread. Prevents a load from falling if a hose ever fails. Carbon Steel body with black oxide finish.