Answer / carl_ellis

A seal pot has had two major uses:

a) a seal pot is intended to protect primary instruments
like pressure gauges, pressure or differential pressure
transmitters from the attack by the chemically agressive
medium being measured.

b) Seal pots have been used for differential pressure flow
measurement of low viscosity oils at high temperature where
cooling in the impulse tubing causes the liquid medium to
cool, become more viscous and to make the meter response
sluggish. By using a lighter, less viscous oil on the top
of the heavier, more viscous measured medium, all contained
in a seal pot that transmits the impulse tubing pressure to
the top of the seal pot, measurement response can be improved.

A test cock installed in a horizontal port tap is used to
establish the level of the heavier fluid (fill until it runs
out the cock) because the seal pot levels of the heavier
fluids must be at a known elevations in order to maintain
the transmitter's zero. A fill cock on the top of the seal
pot allows the light top fluid to be filled over the heavier
fluid.

High and low side sealing pots are generally connected very
close to the pipe.

The challenge is finding media that are compatible yet will
not mix and dilute one another.

Carl Ellis
Measure First

any body tell me ,contol valve has how many cheractristic? explain it.

6 Answers   L&T,

---

what are the diff. in servo and regulatory control?

0 Answers  

---

why orfice is not used for main steam flow calculation

0 Answers   OEG,

---

i/p converter always for supply pessure from 3~15 psi only !! And from where this converter bleed the air.

2 Answers  

---

HOW WE MEASURE A DRUM LEVEL BY DP TRANSMITTER ? WHAT IS ITS FORMULA ?

2 Answers   Thermax,

---

What is an SCR?

4 Answers   GAIL,

---

1.what is the power consumption of three element drum level control in sugar industries? 2.how to reduce that?

0 Answers  

---

HOW TO SOLVE PROBLEM WITH ENRAF LEVEL TRANSMITTER 854 ATG THAT PASSWARD DO NOT Exist INTO TRANSMITTER TO ADJUST LEVEL WITH PORTABLE PET 847, WRITTEN WRONG PASSWORD , I AM SURE THAT DEFAULT PASSWARD (W2=ENRAF2) IS THIS TRANSMITTER NEED TO REPLACE SOFTWARE AND HOW?

0 Answers   Lerco,

---

How can we loop powered for a transmitter.How we can do wiring

1 Answers  

---

What is the difference between pneumatic and electro pnematic positioner?

3 Answers   TCS,

---

where are following valves are applicable to install. can any valve be installed any line. globe valve butterfly valve boll valve gate valve

0 Answers  

---

why we are maintain the gap voltage in vibration probe when installing time can explain me?

1 Answers   CIL,

---