Answer / anindya

Both high and low pH can cause corrosion in boiler. In
acidic range the protective layer of
magnetite is not able to form and it cause corrosion. In
very high pH range the protective layer of
magnetite breaks down and this leads to caustic corrosion.
For corrosion prevention maintaining
proper pH and alkalinity is very important.

Answer / friend

magnetite layer is formed in carbon steel at higher
temp.starts at180deg c but rx become fast at >230 deg c.how
much ph is to be maintained, depends upon metal used for
equipment and environment of equipment.

What is meant by running clearance?

0 Answers  

---

What is the difference between safety valve and relief valve?

10 Answers  

---

Dear sir, I am student of mechanical engg.Please,send me reliance energy placement papers.

0 Answers   Reliance,

---

The amount of radiation emitted per scm per sec is called …. ?

0 Answers  

---

what company need you

1 Answers  

---

---

Which elements increase the corrosion resistance of steel ?

0 Answers  

---

Why the electric motor of a fan with backward curved blades is never got overloaded under any condition ?

0 Answers  

---

What is elasticity?

0 Answers  

---

In which industrial process you will use centrifugal separator?

2 Answers   Reliance,

---

what is the responsibility of assistant manager in welding in goa shipyrad company?

0 Answers  

---

how control valve works? process line pressure is 50kg/cm2g and instrument air pressure is about 4 kg/cm2g.

0 Answers  

---

what is punching force required for embossing of depth 3.5mm and diameter 58mm

0 Answers   Omkar Solar System,

---