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02
2023-01

元旦▏新年伊始 遇见美好

Time of issue: : 2023-01--02
2022年 又是极其不平凡的一年 我们一起奋斗着、幸福着、收获着 威特尔人在惊心动魄的拼搏奋斗中创造了辉煌业绩 展望2023 全体威特尔人 已经踏上新的征程 拼搏再出发... ... 一元复始 万物生春
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26
2021-01

Mine double-resistant plastic-coated steel pipe Mine composite steel pipe Double-resistant plastic-coated steel pipe for remote (long-distance, long-distance) liquid supply Coal safety certificate manufacturer

Time of issue: : 2021-01--26
Weifang Weitel Pipe Industry Co., Ltd. Long-distance (long-distance, long-distance) centralized liquid supply mine with double-resistant plastic-coated steel pipe Performance characteristics:
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01
2021-01

New Year's Message: Join hands to share youth, pursue dreams and start again

Time of issue: : 2021-01--01
When the dawn of the new year illuminates the sky, history begins to write a new page! On the occasion of saying goodbye to the old and welcoming the new, I would like to express my sincere thanks and condolences to the vast number of new and old customers who have chosen and trusted Wittel, and to friends from all walks of life who have always cared and supported the development of Wittel's business! I wish you good health, smooth work, a happy family and all the best in the new year!
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25
2020-12

What are the types of flanges commonly used in the market?

Time of issue: : 2020-12--25
Flange is the abbreviation of flange plate. The name is the transliteration of flange. It was first proposed by an Englishman named Elchart in 1809, and he also proposed the casting method of flange at the same time, but later It was not widely used for quite a while, until the beginning of the twentieth century, flanges were widely used in various mechanical equipment and pipeline connections.
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25
2020-12

Briefly describe the correct maintenance method of the flange

Time of issue: : 2020-12--25
Gaskets will leak after long-term use of the pipeline. When replacing the gasket, it is difficult to open the connecting flange. The simple self-made tool shown in Figure 8-6 can be used to force the two flanges apart. The number and diameter of the bolt holes on the adapter flange and the specifications of the connecting bolts are specified in the relevant adapter flange standards. The flange bolt holes are generally 2 to 3mm larger than the diameter of the bolt or stud.
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25
2020-12

How to connect the adapter flange correctly?

Time of issue: : 2020-12--25
1. The connection of the connecting flange should maintain the same axis, the center deviation of the bolt hole should not exceed 5% of the diameter of the hole, and the bolt should be free to penetrate. The connecting bolts of the flange should be of the same specification, the installation direction should be the same, and the bolts should be tightened symmetrically and evenly.
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25
2020-12

What is the correct way to assemble an adapter flange?

Time of issue: : 2020-12--25
Adapter flange fasteners refer to the bolts, nuts and washers used to connect adapter flanges. Hex head bolts are usually used for low pressure pipes, and studs (studs) should be used for medium and high pressure pipes. The nuts matched with the bolts are divided into A-type and B-type. The A-type nut is rounded on the hexagon on one side, and the other side is flat, while the B-type nut has rounded corners on both sides.
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25
2020-12

How should the mechanical tee be installed correctly?

Time of issue: : 2020-12--25
First, the steel pipe is opened with a hole punching machine, and then the mechanical tee is inserted into the hole, and the hole is sealed along the pipe wall by a sealing ring. Mechanical tee is divided into two types: wire connection and groove type. When the mechanical tee is connected, the clearance between the mechanical tee and the hole should be checked, all parts should be uniform, and then tightened in place; the distance between the mechanical tee and the hole should not be less than 1m.
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02
2020-12

What are the technical requirements for elbow sellers to produce elbows?

Time of issue: : 2020-12--02
Under normal circumstances, the elbows sold by elbow sellers can be divided into 45°, 90°, 180°, etc. according to the angle. These three elbows are more commonly used, and according to The engineering needs also include other abnormal angle elbows such as 60°. The materials for producing elbows mainly include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics.
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