quetion on liquid metering ststion
quetion on liquid metering ststion
(OP)
my question is this:
i have two liquid metering stations both are very similar in configuration, except that one has the outlet and the inlet to/from the Prover at the very end of the station, with a block valve in between outlet and inlet branches who also has block valves. The other configuration has the outlet and inlet pipe to/form Prover after the valve for maintenance of the meter but before the pressure control valve.
i would like to know if both are correct and will work properly or if there are any code rule concerning theposition of pipe connection to Prover, Thanks in advance for any comment or sugestion
i have two liquid metering stations both are very similar in configuration, except that one has the outlet and the inlet to/from the Prover at the very end of the station, with a block valve in between outlet and inlet branches who also has block valves. The other configuration has the outlet and inlet pipe to/form Prover after the valve for maintenance of the meter but before the pressure control valve.
i would like to know if both are correct and will work properly or if there are any code rule concerning theposition of pipe connection to Prover, Thanks in advance for any comment or sugestion





RE: quetion on liquid metering ststion
RE: quetion on liquid metering ststion
The prover should be connected as directly as possible to the meter (it can have fully open or fully closed block valves between them) and the pressure control valve should be downstream of a common point to both meter and prover outlets.
This is the conventional configuration,
+----prover---+
meter X X |backpressure control Valve
->=====||=====+====X========+====V====>
X = block valves
BigInch
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http://virtualpipeline.spaces.msn.com
RE: quetion on liquid metering ststion
Just to clarify my poor description, yes, there is a pressure control valve after the block valve of the meter on the first configuration.
What i have clear now is that the second configuration is best due to less pressure losses between meter and prover.