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

Choosing between trailer suction hopper and grab dredgers, Question In ...

Question In search reclamation, what are considerations in choosing between trailer suction hopper dredgers and grab dredgers ? Answer Trailer suction hopper dred

#title.cement factor, Aplease provide tables for each design mix and also t...

Aplease provide tables for each design mix and also the, high early strengh.l thanks

Structural analysis, explain the steps to analyse a portal frame with sway ...

explain the steps to analyse a portal frame with sway condition

Explain brake and electrical horsepower, Explain Brake and Electrical Horse...

Explain Brake and Electrical Horsepower Brake horsepower (bhp) = whp/pump efficiency Electrical or motor horsepower (ehp) or (mhp) = bhp/motor efficiency Friction of heat

How to determine the water content and bulk density, The wet weight of a sa...

The wet weight of a sample is missing in a Proctor test. The oven-dry weight of this sample is 189 N. The volume of the mould used is 1000 cm 3 . If the degree of saturation of

Characteristic strength of concrete, In addition to its own weight, the bea...

In addition to its own weight, the beam in Figure is to carry a uniformly distributed live load of 12 kN/m. Figure 1 also shows the cross-sectional details of the beam. Design a

Vectors application, how does vectors apply mathamatical in civil engineeri...

how does vectors apply mathamatical in civil engineering

Arches, construction of arches

construction of arches

Construction - concrete pavement, Construction: Construction is usual...

Construction: Construction is usually done by one of the three methods: (a) Manual method, providing steel or wooden forms, pouring concrete and compacting by means of nee

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