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Q: Can a diaphragm valve be used for positive isolation?
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What is an isolation valve?

yes, a gate valve is designed to operate in the fully opened or fully closed positions,globe and ball valves can be used to throttle flow. Isolation valves are used for diverting process media, facilitating maintenance, equipment removal and shutdown. The operation, application and construction of gate, globe, piston and diaphragm valves are studied in this tutorial.


What is water system isolation device?

Any type of valve used to stop flow


Why is a throttling valve called an expansion valve?

It is not.. A globe , needle , ball valve are used for throttling For expansion either a shock absorber , diaphragm tank or air chamber are used to allow for expansion


What is isolator valve?

An isolation valve is a piece of equipment used to restrict flow to a certain area. It may be used to divert gas to a specific tank while preventing it from escaping.


What is the function of gate valve?

A gate valve is positive shut off and used for on of off . A globe valve is for throttling


What type of valve is used in a peanut butter factory ball or gate or globe or gate?

gate valve. globes are used for throttling and have far too many turns. ball valves are not made for thick stuff. this question was on the inter-provincal exam they had globe valve, gate valve, diaphragm valve and piston valve. for answers too choose from.


What is the difference between reflux valve and check valve?

A check valve allows for flow in one direction and a gate valve is used for positive shut off and a globe valve is used for throttling


What is the function of capillary tube in air conditioning?

Its a tube used to transmit internal refrigerant pressure from a remote sensing bulb to an expansion valve diaphragm............................


What is the application of boiler stop valve?

Stop Boiler Valve (or Crown Valve) is installed on an outlet line of a boiler. It's purpose is isolation of a boiler from a downstream steam line. Its position may be either open or close, it cannot be used for throttling of steam.


What is the difference between a knife gate valve a gate valve?

A Knife Gate Valve is used to slice through sludge /sewerage and a gate is used fro normal positive shut off If you want to find the photo of Knife Gate Valve,you can enter to the link:http://www.kolinkcn.com/


How does a diaphragm work?

The diaphragm is used to change the aperture diameter,same as shade.


When should the diaphragm be used?

In order to be effective, the diaphragm must be used for every act of intercourse. The diaphragm is not a particuarly effective method in real life due to lack of insertion.