Major compensation of using hdpe as compared with cast iron, Civil Engineering

Assignment Help:

Question

Now, mainly flap valves are ended of HDPE. What is the major compensation of using HDPE as compared with cast iron?

Answer

(i) It has no response with sewage and seawater and does not undergo from corrosion trouble connected with cast iron.

(ii) No defensive coating is necessary and it is about protection free.

(iii) HDPE flap valves need low opening pressure in operation like 5mm water level difference. Fore cast iron flap valves, due to its own heavy self-weight, required opening pressure of cast iron flap valves is upper than that of HDPE flap valves. This criterion is necessary for dry climate flow conditions.

Though, pressure confrontation of HDPE flap valves is not as high-quality as cast iron flap valves. For example, a typical 450mm wide HDPE flap valve can only withstand about 5m water column.

 

 


Related Discussions:- Major compensation of using hdpe as compared with cast iron

Urban transport systems, Urban Transport Systems: Urban Transport P...

Urban Transport Systems: Urban Transport Problem Rapid urbanisation is taking place in India. The current urban population proportion of 28 per cent may reach 40 per

State the procedure of prestressing, State the procedure of prestressing ...

State the procedure of prestressing When these wires cool down, concrete is poured in the moulds in which these tendons are provided in a stretched condition. Using this proces

Highway Engg, what are lab and field test carried on soil subgrade

what are lab and field test carried on soil subgrade?

Explain working of ultrasonic system for concrete elements, Explain the wor...

Explain the working of Ultrasonic System for Concrete Elements? Ultrasonic methods can be used underwater for overall assessment of the strength of concrete based on sound velo

Dense bituminous macadam, Dense Bituminous Macadam: A Dense Bituminou...

Dense Bituminous Macadam: A Dense Bituminous Macadam (DBM) is a close-graded premix material having a voids content of 5-10 per cent. Two gradings are normally adopted :

Flemish bond, what is the advantages of Flemish bond

what is the advantages of Flemish bond

Building classification, Why I is the missing after h and J is written in t...

Why I is the missing after h and J is written in the classification of building

Introduction to engineering mechanics, Deternim the angle A for which the m...

Deternim the angle A for which the moment of the 500N force is maximum about a point o. also find the maximum momentum

Define role of diver in underwater inspection of bridge, Define Role of Div...

Define Role of Diver in Underwater Inspection of Bridge? Diver's role is primarily to point out a potential scour problem. The diver can use one of the following equipment to m

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