Pressure Control Valves & Rod Gearing

Question 1

What do pressure control valves do?

Answer 1

Maintain system pressure at designated set levels. They open and close as required to maintain pressure.

Question 2

What does a pressure relief valve do?

Answer 2

Protects a system against over pressurisation. Excess pressure is pushed into valve and normally put back into the pump suction.

Question 3

What does rod gearing do?

Answer 3

Allows a valve to be shut manually from another location. Used if machinery space cannot be reached due to fire flood etc. Maintained to highest standards and used in an emergency.