Explain , how timer based pneumatic control valve will work ?
Answer / carl_ellis
The timer forces the on-off pneumatic control to drive open
or closed based on the timer's output state.
The timer's output relay activates or deactivates a 3 way
solenoid valve that supplies air to the valve's actuator.
In one timer state, the solenoid valve passes supply air to
the actuator driving the valve to its 'not-failed' state.
In the other timer state, the solenoid stops the air supply
and dumps the existing actuator pressure to atmosphere, letting
the valve assume its 'failed' state, whether open or closed.
Carl Ellis
Measure First
Is This Answer Correct ? | 0 Yes | 0 No |
there is one orifice plate already installed on 3" line, but my previous engineer(who is not working here) removed that tx, but now i want to take it in to the process, so now what i have to do now? flow fluid is hytherm oil of temp. 260deg & pressure is 3bar.
what do you mean by CJC (cold junction compensation).?
what is the zero and span trim?
what is the process for double acting cylinder pneumatic for 32' v/v
Can any body help me,The GE Mark V control system is windows based or Dos based?
what would be the minimum flow rate that we can measure on rotameter..?
where proximity sensor installed on tank in loading arm application
what is instrument philosophy
Which softwere is required to communicate the S7-300 processor
Why shield is not connected at both end.
In s7-200 we use HMI TD-200C , what that C stands for........ plz reply
dear friends, i have seen flow as the selection critriea in presure guage (bourdon tube) and i would like to know what is the relation between flow and performance of pressure guage other parameters i found in the data sheet are pressure max. 1ksc temperature max. - 50 deg c line size - 80NB operating range - 1ksc pr. guage range - 0-2 ksc thank u,