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What is the difference between lean and blind concrete?

Blind Concrete


What is a spectacle blind flange?

"A spectacle blind - also known as a figure-8 blind - is generally a piece of metal that is cut to fit between two pipe flanges and usually sandwiched between two gaskets. A spectacle blind is often made from two metal discs that are attached to each other by a small section of steel. The shape is similar to a pair of glasses or "spectacles" - hence the name spectacle blind. One end of the blind will have an opening to allow flow through the pipe during operation and the other end is solid to block flow during maintenance. They are generally installed as a permanent device to separate process piping systems."[1]The whole idea of a spectacle blind is so that one can be absolutely sure that an item of equipment is properly and securely blanked off with no possibility of any flow or leakage through a valve during maintenance. The flow can be diverted to other items of equipment but not just bypassed around the blank as this would compromise the safety function of the spectacle blind. The flow has to valved off and pressure relieved prior to loosening flange bolts and swinging the blind.References1. Steinmans, LLC, "What is the difference between a spectacle blind and a paddle blind or spade blind?", Online News Article, Web Link: http://spadeblinds.com/ournews/entry?id=6


What is the difference between a pop rivet and a rivet?

The main one being that pop rivets can be attached with a blind spot.


How do you install blind flange?

To install a blind flange, first ensure that the pipe ends are clean and free from debris. Align the blind flange with the pipe, ensuring the gasket is placed correctly between the flange and the pipe. Use appropriate bolts to secure the flange, tightening them in a crisscross pattern to ensure even pressure. Finally, check for any leaks by testing the system under pressure.


What is the difference in blank and blind flanges?

Blind flange is put at the end of pipe or at the junction that would possibly be a future expansion into that direction. Piping is easier to drill or weld at the construction stage. Once it was in use, drilling or welding will need prolong cleaning especially when the fluid transferred is combustible. For the mean of future extension, either the blind or valve would be used to seal the end.

Related Questions

On which sides of a venetian blind is the cord that adjusts the opening between the slats?

On the front side of the blinds - the side facing into the room.


On which side of a venetian blind mini blind is the cord adjusts the opening between the slats?

To be honest it could be on either side of the blind, look here http://www.theblindfactory.co.uk/VenetianBlinds/Page1.aspx and you can see that you can select to have the controls on either side


On which side of a Levolor-type blind is the cord or wand that adjusts the opening between the slates?

The cord should be on the right and the wand on the left


On which side of the venetian blind is the cord that adjusts the opening between the slats?

They can be on either the right or the left. However, it should always be on the side that is facing the room, not the side that's facing the window.


What is another name for a slatted blind?

a venetian blind


What is a blind with horizontal slats?

Venetian is a blind with horizontal slats.


What is venetian approach to reporting?

Blind.


Is venetian blind a lever?

yes


What kind of simple machine is a venetian blind?

Venetian blinds are made with pulleys.


Is it true that the venetian blinds were invented in Japan?

No. the term "Venetian" blind refers to a specific type of blind which was not used historically in japan.


Why are Venetian blinds called Venetian blinds?

The early history of the venetian blind is conjectural. The early Venetians, who were great traders, are thought to have brought the idea of the blind from Persia to Venice. The venetian blind proved to be more popular in commercial and institutional markets, where technical supremacy overshadows charm. Superblindsmart.com.au


What is the name for venetian blind strips?

slats