Answer / rajesh

the fluid medium to be used

the fluid physical properties ( viscosity , density ,
temperature etc )

the frequency of application of valve i.e the no of times
opened or closed in a hour

the flow rate , pressure desired c time , volume to be
transferred in specific time for flowing media etc

the operation to control valve
manual , automatic , pneumatic , hydraulic etc

How RAL(Rotary air lock)works in cement industry?

0 Answers   Jaypee,

---

how to measure draft pressure in transmitter pl. give its single line digram

0 Answers  

---

What is shriking and swell effect for a boiler ?

1 Answers  

---

what is the function of a zener diode ?

2 Answers   Honeywell,

---

I want to take temp. data from recorder to computer. Which communication system is best from this option(Rs 232- 485/ethernet/USB)?

3 Answers  

---

---

how can check the loopchecking for valves?

3 Answers  

---

How to Calibrate Penumatic Transmitter.LRV= -60 URV= -20.Can u give me Answer.

9 Answers   ABB,

---

What is the right procedure for adjusting the gap voltage of bently nevada vibration sensor?

2 Answers  

---

You wish to SINK all my digital inputs to a PLC digital input card. Would you common out the leads to a positive or a negative connection?

1 Answers  

---

How to calibrate the control valve.

1 Answers  

---

What is the difference between HMI and MMI?

16 Answers  

---

what are the different types of Protocols? & their applications.

6 Answers   Infosys, Sitara Chemical Industries, Syntel, VSNL,

---