Size:1"  |  Number of Items:1 The Smith-Cooper International CV30 series check valve is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability. Brass can be connected to copper, brass, plastic, aluminum, and welded steel. It has ethylene propylene diene monomer (EPDM) seat and seal, stainless steel spring, spring-loaded poppet, and female National Pipe Taper (NPT) connections on both ends. Female NPT threads connect to male threaded pipes, creating a tighter seal than straight threads. The cracking pressure is 2 pounds per square inch (psi), and the maximum pressure rating is 200 psi.Check valves have two ports and restrict the flow of fluids and other loose materials through a pipe or passageway to one direction. Flow enters through one port and exits through the other, closing when flow reverses or stops. Two common types of check valves are ball cone valves and swing check valves. A ball cone valve utilizes a spring-loaded ball seated against a cone-shaped interior surface to stop the flow of fluid in a forward direction, and a swing check valve has a movable disc on a hinge to block reverse flow. Check valves are rated by their cracking pressure (the minimum upstream pressure required for the valve to operate), and they are used in various water, gas, air, and steam lines.Smith-Cooper manufactures a wide variety of pipe fittings and valves. The company is headquartered in Commerce, California, and meets relevant ANSI, ASTM, and International Organization for Standardization (ISO) 9002 standards.
J**S
Chinese copy of Taiwanese copy of USA LOL !!
This is an exact copy of a Merrill brand check valve that was a Chinese copy from a USA built valve and was part of my home water system and in service for 12 years. That valve began to fail within the last 6 months along with the well point, the pump, and pressure tank. As of today all four items have now been replaced within the last 3 weeks, along with every fitting and connector from the well point to the pump to the tank. So I guess you could say the water system in my house is now completely new with the exception of the water heater which should be bursting and spewing water all over the floor any day now. The Merrill valve was marked "Made in Taiwan" this one "China". I give it 5 stars because it appears to be the same exact valve and from what I gather 12 years of service from any component in a hard water well system is remarkable in this day in age. The casting is good, threads are cut nicely and threaded easily and sealed well, but only after finding quality stainless steel 2" connectors. Don't even try to use steel ones from the Big Box stores. JUNK !! Won't work. And forget about plastic check valves !! LOL What a joke there !! That pretty much goes for all the plastic threaded fittings these days. The Chinese just can't seem to figure out how to cut threads decently. The poppet valve operates smoothly and holds pressure up to 85 PSI for sure. That was all I to put to it. It says 200 PSI. If it holds that much then good for it. I don't really care being I only need it to hold just over 60 PSI. Vacuum is what I am more concerned with in a well application and I don't have any way of bench testing for vacuum, so I will have to hope it holds. If it gives me any trouble I will update my review.
B**N
Don't buy.
I have used this check valve on about 40-50 jet pumps. The valve has failed on over 10 units.The pump as set to run at 30 to 50 PSI. This should never have happened. The problem is the nuton the works loose and fails off, poor quality control.
L**Z
A quality product, works well at a a great price.
This is a quality product, very well made. Installed on a 2hp sprinkler system that pumps from a canal about 35ft. from the pump. The last valve I had was sticking and the pump would keep losing it's prime but the system has been working great for the last two weeks after installing this backflow valve.
M**.
Pump tunnel relief valve
Nice price. Quality piece. Used for pump tunnel pressure relief on watercraft jet systems.Pump tunnel relief valve. If you know what this means, then this is the one.
N**N
Five Stars
Solid check valve works without issue
P**N
Five Stars
Works great on our sand point well.
S**T
Chinese made but as good as expensive US valve
To replace a failed check valve I had to buy a U.S. made check valve from a local hardware @ $102, then saw this Chinese made for <$40. It is just as good as the $100 valve and shipped to my house in less than a week.
J**R
Great valve
Great product, clean and well made.
Trustpilot
1 day ago
4 days ago
