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This is possibly referring to a double check valve or back flow preventer on your potable water system. The valve prevents potable water from traveling backwards in your water line. Lets say that you are filling a sprayer can with weed killer and your hose is submerged in the sprayer while you are filling it. If your water system was to lose pressure it would be possible for the water in the hose to start traveling backwards and actually suck up the weed killer into the potable water supply. When pressure was restored the contaminated water would now flow through to your sink faucets and possibly to your neighbors faucet also. The back flow valve is usually located in a box below grade next to your water meter. In some states the back flow valve needs to be tested every year. When the back flow valve is tested they actually test the backseat valve to insure it lets no water pass backwards
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What does don't be a backseat driver mean?
A "backseat driver" is someone who's not driving, but keeps telling the driver what to do, like they're trying to drive.
What is the correct procedure to pumpdown unit'?
Backseat the liquid line service valve all the way, then turn the compressor on and check the pressure on gauges until the low side gets to vacuum mode. Once the low and high side are at or below 0 PSI, backseat the suction line service valve and turn compressor off.
What the orgin from backseat driver?
it mean telling some one how to drive
What you mean by cold differential set pressure of a safety valve?
cold differential test pressure -The inlet static pressure at which a pressure relief valve is adjusted to open on the test stand. This test pressure includes corrections for service conditions of superimposed back pressure and/or temperature.
How do you know if you have burnt a valve?
A compression test will show you if you have a burned valve.
How do you know if you have a burnt valve?
A compression test will show you if you have a burned valve.
When was Backseat - album - created?
Backseat - album - was created in 1986.
Show the Diagram of manifold for hydrotest test?
1" manifold ( socket welded is preferred) test pressure range : 450-3000 psi: from test pump hose: union-1st block valve-check valve flow--> - first tee down-drain valve for depressurization and drain-second tee up-block valve--lock open for relief valve-relief valve-back to header----third tee up block valve-reducer-pressure gauge--back to header- second block valve-union-adapter to test piece.
When was Backseat - song - created?
Backseat - song - was created on 2011-02-15.
When was Backseat Baby created?
Backseat Baby was created on 2005-11-30.
When was Backseat Betty created?
Backseat Betty was created on 2009-11-13.
What does take a backseat mean?
Take a back seat- It means to be inferior to something/someone in an organisation / situation
