Answer / sheik muhammed

flow coefficient of control valve.its calculated by the
given below formula:
CV = Q/(P/SG)^1/2
where:
CV -flow coefficient
Q -flow of liquid
P-pressure drop across the flow
SG-specific gravity of the liquid

CV=1.17KV => KV=.86CV

KV is metric unit of CV

the flow of water through a valve at 60 oF in US
gallon/minute at a pressure drop of 1 lb/in2.

Answer / naveed anwer

coefficient valve
one cv equal the flow of one u.s galleon(3.8 litter)per minutes of water at 60 F under a pressure drop of value of 1psi.

Answer / waqas

The Cv is actualy the Flow Coefficient of control valves.
It actually measures the friction experienced by a fluid as
it moves through some pipe / valve. The standard definition
of Cv is:
"the flow of water through a valve at 60 oF in US
gallon/minute at a pressure drop of 1 lb/in2."

Answer / faiyaz ahmad

Cv of control valve means co efficient of valve
Cv capacity of valve

What happens if the Displacer has fallen or has a hole in it?

1 Answers   CCIE,

---

Is that Speed Probe and Vibration Probe sensors are same,if yes what is the diff b/w them?

2 Answers  

---

what will be the pressure in tank which has the total level of 2 meters and is filled 1.2 meters ?

4 Answers   Engro,

---

what is solenoid valve?

6 Answers   Hindustan Zinc,

---

What is input and output of vaiberation transmitter and what is its unit.

4 Answers   SMH,

---

If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

0 Answers   QAFCO,

---

What is three element in drum level?

0 Answers  

---

what is XV and KV valves?

4 Answers  

---

How to interfacing microcontroller with a DC motor

0 Answers   JJ Tech,

---

what is the diffrence between LCN and UCN

2 Answers  

---

whats diffeence between dcs & scada operation.

3 Answers   Orchid, Reliance,

---

selection of the zener barrier for the hazardeous area zone 0

0 Answers   Siemens,

---