Sage-Tips

What is the reducers in pipe installation that placed in the suction line of a pump to helps prevent air pockets in the suction line?

Eccentric reducer is recommended for horizontal flow to the pump. This configuration prevents air pocket accumulation at the upstream end of the reducer. Concentric reducer is recommended for vertical inlet (suction) piping or horizontal installations where there is no potential for air vapor accumulation.

What is the purpose of a pipe reducer?

First, let’s keep it simple: A pipe reducer is a pipe fitting that connects a larger pipe to a smaller pipe. Thus, it reduces the size of the pipe in the pipe system, from one size to another. Pipe reducers may frequently be used to connect pipes of different sizes.

Where is reducer used?

A reducer is a kind of pipe fitting used in process piping that reduces the pipe size from a larger bore to a smaller bore (inner diameter). A reducer allows for a change in pipe size to meet hydraulic flow requirements of the system, or to adapt to existing piping of a different size.

Why suction pipe is larger than discharge pipe?

The discharge pipe may be larger than the suction pipe. This is done to make sure there is enough Net Positive Suction Head available to meet the requirements of the pump.

Which reducer is used in pump discharge?

Eccentric reducers
Concentric reducers are used where the pipework is vertically installed and at the discharge side of pumps. Eccentric reducers are more often used when the pipework lays on a pipe rack.

Where concentric reducer is used in pipeline?

A concentric reducer is used to join pipe sections or tube sections on the same axis. The concentric reducer is cone-shaped, and is used when there is a shift in diameter between pipes. For example, when a 1″ pipe transitions into a 3/4″ pipe and the top or bottom of the pipe doesn’t need to remain level.

What is a pipe reducer in plumbing?

Reducer Pipe Fittings Reducer is a pipe fitting component which reduces the flow size from larger to smaller by reducing size of pipe.

What is a reducing tee?

Reducing tee is another type of pipe tee used in pipe and tube fittings. Reducing tee, like all pipe tees, is in the shape of T with two ends of equal size and the third one slightly smaller. In other words, reducing tee is a type of pipe fitting in which the branch port size is smaller than the ports of the run.

What is suction piping?

Paul Reed. Paul Reed. Used drilling fluid is pumped back up to the surface, where it is cleaned and purified using special machines such as the shale shaker. A suction line is a pipe, hose, or tube that delivers a fluid to the suction or inlet side of a pump or compressor.

How do you install eccentric reducer?

When the source of supply is above the pump, then the eccentric reducers must be placed with the flat side at the bottom. In case of long horizontal pipe runs, air pockets are avoided by installing the eccentric reducer with the flat side up.

How long should the pipe be between the reducer and pump suction?

In such cases, straight horizontal pipe between reducer and pump suction should be kept to a minimum. In such installations, the reducer flange is often directly connected at the pump’s suction nozzle. There is no straight length of piping between the reducer outlet and the pump nozzle.

How is a pump reducer connected to the pump?

In such installations, the reducer flange is often directly connected at the pump’s suction nozzle. There is no straight length of piping between the reducer outlet and the pump nozzle. Straight pipe lengths are however connected to the inlet flange of an eccentric reducer.

What are the disadvantages of using concentric reducers in vacuum pumps?

If concentric reducers are used, their upper part can allow accumulation of trace amounts of air or vapors at the pump suction. This can lead to creation of bigger gas bubbles near the pump suction. If these gas bubbles manage to escape from the reducer and get into the pump suction, resulting cavitation is damaging for the pump.

How can I reduce the amount of vapor inside the pump?

However you can minimize this by installing a sufficient length of straight run pipe before the pump suction. Whenever a low point exists at the pump’s suction line and a concentric reducer is used at pump suction nozzle, it is possible to have vapor accumulation close to the pump suction nozzle (Picture-2).