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 |
Why the Air Tank Accumulators required for the single acting actuators SDV's or BDV's as I see in some Schematic diagrams of ROTORK ??
how to convert transmitter milliamps output to like temp,pressure etc.....
WHAT DO WE MEANT BY INSTRUMENT MAINTENANCE IN SOFTWARE SIDE.
Can anyone explain about ELectropneumatics principle?
1 Answers Forbes Marshall, Step,
what is your eligibility criteria for freashers?
what is weighfeeder
In close vessel/ drum why we use d.p. transmitter of -ve range i.e. (-)500 to 0 mmwc.
what is the difference between RS 232,RS 485,RS 422, how they different from each other
Basic working principle of control valves
Convert a pressure, level, flow, or temperature process variable value into the appropriate pneumatic or electrical value given different types of instruments.
6 Answers Jindal, MCL, Thermax,
What should be the main consideration while starting the Rotating compressor when we dont know the cut in and the cut off pressure setting of the pressure switch
What is DCS?
4 Answers GAIL, Sabic, Trident, Yokogawa,