Answer / krishnakamesh @ j.e.

sdv means shutdown valve
bdv means blow down valve
Both are used in ESD (emergency shutdown) condition.

SDV: ( closed valve)
it was used in plant inlet & outlet places.whenever plant
was partially OR total shutdown condition, at that time
plant was not disturbed from/to another process,closed the
disturbed process through SDV".

BDV : (opened valve)
It was used in sudden flare OR pressurized
condition,relief that pressure( to avoid dangerous
condition) used this valve.

Both are operated with solenoid valve, with electrical supply.

any thing want more refer google

all questions related to instrument technician in any offshore oil and gas company.

0 Answers  

---

how to do loop checking pls email to shanavaska2000@yahoo.com

2 Answers   Kentz,

---

Tr. Wiring for calibration.

0 Answers   CCIE,

---

what is the difference b/w wet leg & dry leg level method

2 Answers  

---

Explain about 4 wire instrument concept & tell about its wiring fron sensor in Field to PLC panel.Explain with an example?

3 Answers   IOCL,

---

---

How to Calibrate Level Switch in field

0 Answers  

---

how to given power supply of any type two wire transmitter in field?

4 Answers   Dr Reddys,

---

What are the types of valves?

0 Answers  

---

Describe how to use megger to measure the earth resistance and insulation resistance

0 Answers  

---

why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.

0 Answers  

---

what is weighfeeder

2 Answers  

---

How to fix back the valve actuator stem

0 Answers   SAFCO, Tarpon,

---