Answer / raja

flow inlet of the primary element called upstream,flow outlet of the primary element called down stream.

Answer / naveed iqbal butt

inlet of the primary flow element is called upstream where
pressure increase and volicity decrease,outlet of the
primary flow element is called down stream where volicity
increase and pressure decrease.

Answer / ahmed helmy

upstream means high pressure
downstream means low pressure
in liquid flow, the flow is directed in pipe from high pressure to low pressure

Answer / carl_ellis

Upstream is a higher pressure than downstream and
downstream is lower pressure than upstream, because it is a
difference in pressure that causes a liquid to flow.

Carl Ellis
Measure First

Answer / seshu

consider one orifice its inlet is upstream and its out let is call downstream.upstream have high pressure loe stream have low pressure.

Answer / mugil

flow level is going full ( high) in pipe line means that is
called upstream.
flow level is going low level in pipe line means that is
called down stream.

how do i tune dearator pr control valve using PID. we set the set point is 0.6kg/cm2 now i want 0.5 to 0.7kg/cm2 limits so what should i give p,i,d values. then pls explain how do set pid values for control valve tuning?

0 Answers   SEWA, Sharjah Electricity and Water Authority SEWA,

Instrumentation engineer please reply me,I am electrical engineer ,what is the future in instrumentation dept {presently working (P&ID) Design} for me,whether good future for me as instrumentation department.what side can i get job in future

3 Answers  

In control valve , Failure position : Close If it is Fail close(FC) during failure of AIR.. what will be the initial/ normal position of control valve is it normally open or close? please some one explain soon..

2 Answers  

It is desired to reduce effect of 50Hz pick up in a thermocouple measurement. If a third order LP filter is used for this, what should be its cut off frequency, if gain should be 0.001 at 50Hz.

1 Answers   Honeywell,

Specify for Cables - Flame Retardant and Fire Resistant?

0 Answers  

how is hazardous and non hazardous area classified?

2 Answers   Bhel, Power Plant, Samsung,

how far the two wire transmission (loop power) maximum distance suitable?

2 Answers   PCIL,

i want formula for flow control.am doing project in flow control using orifice . i know value of the flow level(Q) . upstream(p1) pressure, orifice diameter(Do) , pipe diameter(Di) and oil viscosity(Vi) how can i calculate downstream pressure

0 Answers  

What is seeback effect?

3 Answers  

IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?

0 Answers  

why we use cascade control and feed foreword control in 3 element control of boiler drum ?what is feed forward and cascade control system ?

0 Answers   Visa Steel,

if we mount flow tube in arrow direction then flow comes in negative & if we mount it another direction then flow comes positive,So what will be the problem

2 Answers