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Depens on the brand some last well over 308 years
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∙ 15y ago
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How long does a pig heart valve last?
about as long as a regular valve
After close main water valve in front yard.. If I do air pressure test from a cold water tab.. could it detect any water leak on hot water pipe.?
yes, as long as the cold water inlet valve to your water heater is open.
What is the lifespan of a car's tire valve?
The valve stem should last at least as long as the tire.
How long do waterspouts last?
how long does a water spout last
Why does a 12 valve cummins last so long?
because the dont rev very high and the were built very good to last long
How long do penguins last in water?
they can last up to 3 days in the water.
How long can an astronaut last in outer space?
He/she requires heat, water, food, oxygen, a way of disposing of waste, and pressure. If all of those are present, indefinitely.
Will the water cycle last for ever?
Water cycle is a continuous process. It will last long.
How long does distilled water last in a bottle?
It will last as long as the bottle holds up.
How boiler safety valve works?
most common type, the section VIII Safety-relief valve operates on force-balance. One standard orifice is 0.196 square inches. Standard orifice designations are D through T, with D being .110, and T being 26.0 square inches if memory serves. If you need to set the valve to pop at 500 psi, first the manufacturer or a certified repair facility would select the proper spring for the application. Then they crank the spring adjuster down so that the preload is 0.196 x 500 = 98 lbf. Now, when the pressure under the disc gets to 500 psi, the disc will begin to lift. Outside of the disc there is a ring, which may or may not be adjustable. As the disc begins to lift, the flow starts, and it hits the ring and is deflected downward, increasing the lifting force on the disc assembly. The disc then POPS open to its full allowable travel. As long as the pressure remains above setpoint, the valve remains fully open. The rated flow for the valve is measured at the cracking (set) pressure, +10 percent overpressure. Once the pressure goes below the set pressure, the valve is no longer held open by the inlet pressure and it closes. Code valves must close within 10% of the set pressure. Non-code valves sometimes blow-down considerably more than that. It is a bad idea to operate normally at higher than 90% of set pressure because if you get an upset and burp the valve it will stay open until it blows down to its reseat pressure. It's possible for the valve to stay continuously open if the system can supply enough flow at over 91% of the set pressure to keep it open. Safety-relief valves are like fuses....they are never really expected to operate, but are there to protect life and property in case of another malfunction.
How long do water lillies last and how do you take care of them?
Water lilies can last a long time and require little maintenance. They live in the water and pond. As long as the water does not get too cold and ice it will be fine.
How long does a flower lilly last with out water?
it can last for ever
