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These springs are used in our ACV and ICV brass check valves and are directly proportional to the height of the above ground fuel storage tank. It is best practice to fit an angle check valve in the suction line on an above ground storage tank with a top outlet. But they only work when the ACV and ICV is fitted with the correctly weighted spring.
Weight
N/A
Manufacturer
Hytek Engineered
Fuel Type
Biodiesel B30, Diesel, HVO, Petrol
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This product is covered by a 1 year manufacturer warranty.
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These Hytek Engineered pressure springs for our brass 1.5", 2" angle check valves are made locally to Hytek. It is best practice to fit an angle check valve in the suction line on an above ground storage tank with a top outlet. These check valves prevent the suction line from draining back into the tank and causing the connected pump to lose prime and also to prevent a syphon in the event of damage to the suction line, but this only works when the ACV and ICV is fitted with the correctly weighted spring.
The spring weight used in the ACV/ICV is directly proportional to the height of the tank. It should also consider any pipework buried below ground as this effectively increases the height of the tank in the event of a syphon.
For example, if you have a pump fitted to the side of a tank and the suction line comes out of the top of a six foot tall tank, drops two feet down to the inlet of the pump and the tank is sitting on level ground, then you can use a 3psi spring. This will hold back a possible syphon effect if the pipe cracks or the pump is vandalised.
If the pump is mounted on an island and the pipework is routed below ground between the pump and the tank, then the tank height measurement needs to be taken from the lowest point in the suction line to the top of the tank.
Therefore, if you have a six foot tall tank but your pipework is buried two feet below ground before coming back up to the pump, you need to use a 4psi spring in the ACV as this will hold back eight feet of head.
Get in touch with our knowledgeable experts in fluid transfer solutions for personalised advice and solutions, always tailored to meet your specific fluid transfer needs.
These Hytek Engineered pressure springs for our brass 1.5″, 2″ angle check valves are made locally to Hytek. It is best practice to fit an angle check valve in the suction line on an above ground storage tank with a top outlet. These check valves prevent the suction line from draining back into the tank and causing the connected pump to lose prime and also to prevent a syphon in the event of damage to the suction line, but this only works when the ACV and ICV is fitted with the correctly weighted spring.
