Why we use air valves, Civil Engineering

Assignment Help:

Q. Why we use Air Valves?

Air Valves - Air valves of proper size and pressure rating at summits. Air valves ensure the safety of the pipe line against collapse when at points of low pressure. When it is placed below the gate valve, it protects the pipe against the negative which may develop because when the gate valve is suddenly closed, water continues to flow and vacuum gets created on the down stream side of gate valve. Air valve opens out automatically when the pressure falls below the limit.


Related Discussions:- Why we use air valves

Factors determining the stability of a single armour unit, Q. Factors deter...

Q. Factors determining the stability of a single armour unit There are mostly three major factors that govern the stability of an armour unit, viz gravity, intertangling and s

Application of embankment condition for drainage design, Q. Application of ...

Q. Application of embankment condition for drainage design? In considering loads on buried pipeline, there are generally two scenarios: narrow trench condition and embankment (

Find the normal stress, Find the normal stress: Figure 1 shows the pro...

Find the normal stress: Figure 1 shows the projection of a rectangular prism ABCD, formed by adhesive bonding of two triangular prisms ABC and ACD. The state of stress in the

Do you mean by accelerated aging, Q. Do you mean by Accelerated Aging? ...

Q. Do you mean by Accelerated Aging? Accelerated ageing tests are conducted at elevated temperature of 100 o C to know the variation in hardness, UTS and elongation at break.

Joints in concrete carriageway, Question Is it necessary joints of conc...

Question Is it necessary joints of concrete kerbs be in line with joints in concrete carriageway ? Answer In regular practice, joints are provided in road kerbs to ca

Mild steel and high yield steel in water-retaining structure, Q. Mild steel...

Q. Mild steel and high yield steel in water-retaining structure? In designing water-retaining structures, movement joints may be installed in parallel with steel reinforcement

Defect of timber, due to defectiveseasoning and conversion

due to defectiveseasoning and conversion

Verify the net allowable bearing pressure, A 1.8 m square column is founded...

A 1.8 m square column is founded at a depth of 1.8 m in sand, for which the accurate N-value is 24. The water table is at a detph of 2.7 m. Verify the net allowable bearing pres

Chemistry, What is the difference between scale and sludge

What is the difference between scale and sludge

Explain the kinematic viscosity, Explain the Kinematic Viscosity Ratio ...

Explain the Kinematic Viscosity Ratio of a fluid's Viscosity to the same fluid's Density.  Greek symbol: ν nu    ν = μ/ρ = Absolute Viscosity/Mass Density    Units: ft

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd