Can 2 transmitters be connected to Integral orifice meter taps? Does an integral orifice comes with 2 set of taps?
Integral orifice plate assemblies are either designed to install as part of the process piping with flange mounts for a manifold valve, or for direct mounting to the process heads of a DP transmitter so that no transmitter piping is required. They're designed primarily for low flows.
Although intended for direct mounting to a manifold valve or process heads, optional fittings are available for high temperature applications that move the transmitter away from the integral orifice assembly. Presumably, fittings for dual transmitters could be fabricated as well.
Commercial orifice flange unions have a single tap on each flange. It would be possible to tap a 2nd DP transmitter into the piping for those taps.
Dual or even triple transmitters on a single flow element and set of taps are sometimes referred to as 'stacked' transmitters. There are commercial adapters for close coupling dual DPs with a special manifold valve from vendors like Century Valve. This has a long history of useage to cover a wide flow range with multiple DP transmitters, each of has a relatively low or limited turndown.
An SIS safety calculation has to account for a single-point-of-failure with a single set of taps.
There's always the possibility of a corporate engineering policy discouraging or forbidding dual DP transmitters on a single flow element and set of taps.
Carl Ellis
Measure First
Is This Answer Correct ? | 3 Yes | 1 No |
What are different types of control valves?
why use 50% lel methane gas concentration for gas detector calibration instead of 60% lel gas concentration whereas the hi alarm set at 60% lel.
what is working principle of vibration prob
open tank and close tank leavel transmiter about range and calibration
Why trim span ? How?
Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?
what is the formula for changing Range of Transmitter from X mmwc to some Y mmwc with respect to DCS NCMH flow range from x NCMH to y NCMH?
how far the two wire transmission (loop power) maximum distance suitable?
I have flow transmiter DP range is 0 to 5000mmwc,(convert) Display to be show in m3/Hr.
this site is owned by an nonsense
Control valve question what is the meaning of cauge.?what is the use of cauge?
pls send me the 10 years technical question papers of NTPC AND BHEL
15 Answers Bhel, NTPC, ONGC, UCE,