Common faults and elimination of butterfly valve

1, the butterfly valve before installation to confirm product performance and flow direction of the arrow is consistent with the movement conditions, and the valve cavity clean, does not allow the seals and disc with foreign particles attached, not clean before the butterfly Plate, so as not to damage the ring. 2, the flange plate supporting the installation of special disc flange recommended, that is HGJ54-91 socket welded steel flange. 3, installed in the pipeline location, the best position for the legislation, but can not flip. 4, the need to regulate the use of traffic, a worm gearbox control. 5, open, close the number of disc valve, in about two months time, open the worm gear box cover, check the butter is normal, should maintain the right amount of butter. 6, check the connection parts require compression, that is, to ensure that the filler bees sex, but also to ensure flexible stem rotation. 7, metal seal butterfly valve products are not suitable for installation at the end of the pipeline, such as must be installed at the end of the pipeline, the need to take the export flange, to prevent the backlog seal, over. 8, the valve stem to install the use of regular inspection of the valve to check the effectiveness of the use, found that the failure to be ruled out in time.

Telescopic Pipe

A telescopic pipe is made of cylindrical sections that fit or slide into each other,so taht it can be made longer and shorter,for example to save space when it is not being used.

Telescopic pipe is made up of several single structural pipes,and is connected through a slider and flange with each other.It can be used for transportation of oil and gas,which of its characteristic is it can adapt to the tideway and any other requirement for space change.

Structural pipe is available in a variety of sizes and grades so that it can be used for a number of different structural uses and applications. Common uses for structural pipe include for columns, bollards, sign poles, structural supports, and piling. At Unisite, you can choose from a complete selection of prime, surplus, secondary, and used structural pipe. Our pipe can be cut and spliced to your exact length in order to ensure easy application and reduce waste.

Procedure

- cutting material

- Welding seam preparation

- Pre roll bending of plate tip

- Rolling

- Pre heating

- Welding the vertical seam inside

- outside gas gauging(gas explosion) and cleaning root, then welding outside

- rolling to correct ovality

- Respecting tollerance

- assembly and welding neck flanges, welding 100% full penetration, make sure the straightness, perpendicularity

- assemble and welding hoisting eyes and other plates on the pipe

- do blasing and painting.

Assembly

Installation fitting is the root of a separate straight pipes also the corresponding valve member is connected to the ship together, and with a fixed support, and devices connected to the system and finally to form a complete pipe system.

Our service

Besides above the general specifications, we can also supply some specific Dredger Structural Pipes and other similar steel structure as clients' requirements.

Package and shipping

bulk package and bulk vessel transportation

container package and container transportation

High Strength Telescopic Pipe,Big Telescopic Pipe,Steel Made Telescopic Fall Pipe

Unisite Group Ltd. , https://www.shipsparts.nl