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SYWUWV NPT STAINLESS STEEL VERTICAL CHECK VALVE
SYWUWV NPT STAINLESS STEEL VERTICAL CHECK VALVE is a safety valve used to control the flow of fluids in pipelines to prevent backflow and leakage. It is commonly used in wastewater treatment, chemical, food processing, petrochemical and other industries. It is used with a wide variety of fluids including, but notlimited to water, oil, gas, air, light alkali'sacids, biodiesel, fuels and alcohols.
The products are widely used in industries.
- HOUSE WATER AND HEATING SYSTEM
- PETROLEUM INDUSTRY
- NATURAL GAS INDUSTRY
- FOOD INDUSTRY
- PAPERMAKING INDUSTRY
- PHARMACEUTICALS INDUSTRY
- CHEMICAL INDUSTRY
- SHIPBUILDING INDUSTRY
SYWUWV
Our company is an enterprise that integrates scientific research, manufacturing, and sales of various valves.
Main products: quick connectors, vent valves, ball valves, pneumatic angle seat valves, pneumatic valves, gate valves, globe valves, check valves, three-way ball valves, butterfly valves, high-pressure pipe fittings, fluorine lined valves, and so on.
The product materials include brass, carbon steel, stainless steel, and alloy steel.
NPT THREAD
Standard NPT threads, clear threads, no water leakage.
THICKENED VALVE BODY
The valve body is stainless steel, which is anti-pressure, anti-explosion, uniform wall thickness, abrasion resistance, high strength, high temperature resistance and durability.
SMOOTH INNER WALL
The check valve is polished and smooth inside, which is not easily scaled and not clogged.
PRINCIPLE OF VERTICAL CHECK VALVE
When the fluid in the forward movement process, the valve flap by the fluid pressure will be pushed open, the fluid will be smooth through the pipeline into the next process. However, when the fluid flows in the reverse direction, the valve flap and the valve seat closely fit, preventing the reverse flow of the medium and leakage.
VERTICAL CHECK VALVE WORKFLOW
When the vertical check valve is in normal working condition, the valve flap is in the open state, and the fluid can flow through unhindered. When the fluid flows in the reverse direction, the valve flap closes quickly, avoiding the backflow of fluid and preventing the leakage of the medium in the pipeline, which ensures the safety and stability of the pipeline to the environment.
1. Difference material
(1) The brass spring check valve is mainly made of brass.
(2) The stainless steel spring check valve is made of stainless steel.
2. Different application scenarios
(1) Application Scenarios of brass spring check valve -- Because brass has good thermal and electrical conductivity, the brass spring check valve is widely used in hot and cold water piping, water supply piping, and fire protection systems and so on.
(1) Application Scenarios of stainless steel spring check valve -- The stainless steel spring check valve is widely used in the chemical, petroleum and food industries because stainless steel has good corrosion resistance and high strength properties. At the same time, because stainless steel will not be worn out by repeated use, making it widely used in the aviation and marine fields.
Sotoariel
Reviewed in the United States on March 16, 2025
Works good ,easy installation
fred
Reviewed in the United States on February 14, 2025
well made and structurally sound. HOWEVER, there is no rubber seal. The seat is stainless steel against stainless steel. It does not hold pressure using water. Slowly leaks about 1 psi / minute. If it had a rubber seal (internal o-ring) I would highly recommend it as it is sturdy and well built.
WRH
Reviewed in the United States on July 5, 2024
Great for use with a water pump.Ever have to pump water from a basement or something similar from the floor up thtough a window that is nearly 10' high and then farther up a hill that is ablot 30 feet higher before it goes over the hill and starts downhill?Ever shut off the pump and have all the water in the hose drain right back into the basement? It's not just annoying, it's a lot more work.This check valve solves that problem.It's very well made. Fit, finish and construction are good. Can't find a single thing wrong with it.I like that it's 304 stainless steel. That virtually eliminates corrosion issues.Don't forget to use teflon tape on the threads unless you like leaks.While the operating temperature range is excellent, they make no mention of operating pressure. I find that unusual but since the pump I'm using only goes as high as 150psi, I should be good to go.Very good deal for a quality product. Easy to recommend.
Customer
Reviewed in the United States on July 21, 2024
This works exactly as designed prevent whatever liquid you're pumping from backflowing back to wherever you are pumping from. This has applications in pumping water or transferring fuel where contamination is a concern. It's a very simple device that works well, and is priced well.
Leroy C Yocum
Reviewed in the United States on December 7, 2024
Working great
Dan
Reviewed in the United States on December 22, 2024
Use it to replace an old ball and spring check valve on a ancient Frankensteined built compressor. It was easy to install, it's solid material, function's perfectly and was a great price, and no leaks!UPDATE! After installiing this and taking notice of my compressor I noticed I was losing around 20lbs of pressure overnight. I checked for leaks at every connection/fitting on my compressor, no leaks. Once I disconnected my copper line at the compression fitting before this item I discovered with leak detector solution it has a very small leak. So yeah not 100% leak free.
A Puzzled Tinkerer
Reviewed in the United States on November 28, 2024
Bought this to install in my motorhome. The water pump builds pressure, and delivers great water, and the 'accumulator' holds a reserve of water under pressure. But the pump allowed water to slowly seep back, dropping the pressure, and causing the pump to cycle every few minutes. So, I imagined adding a one-way valve to prevent this backflow would be the fix. Due to space limitations, I need to add this on the 'suction' side of the pump.When the unit arrived, I tried blowing air through it -- in the free flow direction -- and believed the spring might be too forceful. After all, this was going on the low-pressure side of the pump. So I thought I could separate the two halves of the valve, and shorten the spring a bit to reduce its pressure.Long story short, because the valve had been assembled so tight, my wrench deformed the hexagonal lands, compressing two sides of the threaded opening a pipe fitting must thread into.OK, so I ruined that one. But the unit impressed me enough that I ordered an exact replacement.≈======================================EDIT: Well, I thought it would work . . . .Turns out, the check-valve works by seating a stainless steel piston against a circular rim around the inlet opening. Except that because the two stainless pieces were never "lapped" together with polishing compound, and the machining left significant uneveness on both surfaces, the check valve function is no better than my aging pump. Water still seeps back through the pump to the low pressure side, causing the pump to cycle every few seconds. Nice idea, just not executed carefully enough.
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