Answer / abhishekk

pressure safety valve is automatic relieves the static
pressure on a gas..usually it opens completelly ..while
relief valve relieve the static pressure in a liquid filled
,its opens proportionally with increasing pressure...
PSV is used in case of gas and PRV is used in liquid.

Answer / manish dhamani

Relief valve (RV) - A pressure relief valve is a safety
device that relieves overpressure in a vessel or piping.
an automatic system that relieves liquid pressure above a
pre-set limit and opens propotionally to yhe liquid
pressure.
Safety valve (SV) - an automatic system that relieves gas
pressure above a pre-set limit (e.g., safety valves on
pressure cookers) usually it opens completelly
The difference being that PSVs have a manual lever to
activate the valve in case of emergency.

what is the principale of vortex flow meter.

7 Answers   Ambuja, India Glycols,

---

What is the Working principle of Dozing valve?

0 Answers   Shree Cement,

---

what is cascade loop and how it work and why it used instead of PID single loop? In cascade, Which loop is faster and slower? Please explain with loop drawing and example...

2 Answers   Honeywell,

---

hiii.... can any one provide me previous years question paper of hindustan petroleum for instrumentation engineering???

0 Answers  

---

.==PL..PL.. FORWARD TO MANAGER PURCHASE./ / Q.ASSU. DEPT.. =FROM==AJAY ENTERPRISES ===============PUNECITY..INDIA. DEAR SIRS,............. ======================================================== =NEW SUPPLY/ REPAIRING AND CALIBRATION =OF=MECHANICAL /DIGITAL / ELECTRONIC=PRECISION MEASURING INSTRUMENTS=FROM == 22YEARS. ============================================================ = 1.==NAME OF THE COMPANY= AJAY ENTERPRISES 2.=ADDRESS OF THE COMPANY= OFFICE NO 08, DALAL CHAMBERS, MKTYARD PUNE= 411037. ===== TEL- 020 242601! 09. MOB- 0 98900 98941. 3.=EMAIL= ajaygujar1@gmail.com.-- AND-- ajayenterprises1@yahoo.com--- =========================================================== 4.=ACTIVITY OF THE COMPANY= SUPPLIER OF PRECISION MEASURING INST RUMENTS AND MAGNETIC TOOLS IN PUNE== [ MITUTOYO / TESA / KUMAUN / MAHR / BRITOOL / TOHNICHY / DIATEST-GERMANY / IMADA / TECKLOK / SYLVAC /ADITYA=ACCURATE / BAKER/ CRYSTAL / FLUKE-RAYTEK ETC. 5.=SUPPLY= VERNIER CALIPERS / MICROMETERS / HEIGHTGAUGES / SLIPGAGE / BORE DIAL GAUGES / MEASURING PINS / TORQUE WRENCHES / GAUGES.. PLUGGAUGES / RINGGAUGES / SHORE A / D HARDNESS TESTERS / DIAL THICKNESS GAUGE / FEELER GAUGES / ELECTRONIC COMPARATORS WITH PROBES / DFTMETERS / SURFACE ROUGHNESS TESTERS / DIGITAL= COATING THICKNESS METERS / PROFILE PROJECTORS /.. WE ARE ALSO DEAL IN == DIGITAL TACHOMETERS / =MULTIMETERS! / VIBRATION METERS / MEGERS- INSULATION METERS / =TE! MPRATURE INDICATORS / SOUND-LEVEL METERS / ETC... =AGENCY- FLUKE- RAYTEK.. MECO....LUTRON...KYORITSU....RION... ..................KELIEWS......AND MANY MORE ===AJAY GUJAR ...AJAY ENTERPRISES =08 DALAL CHAMBERS MKTYARD ROAD NEAR NISARG KARYALAYA =MARKETYARD PUNE= 411037.. =TEL= 020 2426 0109. =MOB=09890098941. =EMAIL=AJAY.MITUTOYO@GMAIL.COM =WEB--WWW.GUJARWORLD.COM

1 Answers  

---

what's the criteria of using over range protector when installing Pressure Gauge

1 Answers  

---

Where can i take training in intools software for Instrumentation design??

9 Answers  

---

what is sinking and sourcing....

2 Answers  

---

Dear friends, I have a question: We work on a project which has some boilers to provide steam for desalination unit. The boiler area is safe and the only hazard source is the fuel lines of boilers. I want to know according to NFPA standard which type of instrument should be selected on the fuel line: Eex Type or Non-Eex type? Thanks in advance

2 Answers  

---

How to convert ma to mv? Resistance 250 ohm is connected in series or Parallel?

3 Answers   ISRO,

---

what is consistency transmitter and describe its working?

1 Answers   Emami,

---

what is diffrence between cascade & three element system.

3 Answers  

---