Maintenance of stainless steel valve elbow

In the pipeline system, elbow is a pipe fitting that changes the direction of the pipeline. According to the angle, there are three most commonly used elbows: 45 ° and 90 ° 180 °, and other abnormal angle elbows such as 60 ° are also included according to the needs of the project. Elbow materials include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics. The connection methods with pipes include: direct welding (the most commonly used method) flange connection, hot-melt connection, electric fusion connection, threaded connection and socket connection. According to the production process, it can be divided into: welding elbow, stamping elbow, hot pressing elbow, pushing elbow, casting elbow, forging elbow, clamp elbow, etc. Other names: 90 ° elbow, right angle bend, aierbend, white steel elbow, etc.

Characteristics of stainless steel: the strength and toughness indexes are the best among all kinds of steels. Its most prominent advantage is corrosion resistance. Stainless steel must be used in chemical and papermaking and other corrosive occasions. Of course, the cost is also high.

Mold room

There are many things to pay attention to when using and maintaining stainless steel elbow. Users need to use it according to certain methods and use and maintain it according to accurate and fair methods. Precautions are as follows:

1. Stainless steel elbows stored for a long time shall be inspected regularly. The exposed processing surface shall be kept clean, dirt shall be removed, and stored neatly in a ventilated and dry place indoors. Stacking or outdoor storage is strictly prohibited. Always keep the stainless steel elbow dry and ventilated, keep the cleaner clean and tidy, and store it according to the accurate storage method.

2. During installation, the stainless steel elbow can be directly installed on the pipeline according to the connection mode and installed according to the position of use. In general, it can be installed at any position of the pipeline, but it needs to be easy to operate. Note that the medium flow direction of the stop stainless steel elbow should be upward under the longitudinal valve disc, and the stainless steel elbow can only be installed horizontally. Pay attention to the tightness of stainless steel elbow during installation to prevent leakage and affect the normal operation of the pipeline.

3. When the ball valve, stop valve and gate valve of stainless steel elbow are used, they are only fully open or fully closed, and are not allowed to adjust the flow, so as to avoid erosion of the sealing surface and accelerated wear. There is a reverse sealing device in the gate valve and upper thread stop valve. The hand wheel is screwed to zui the upper position and tightened to prevent the medium from leaking from the packing.

4. The stainless steel elbow shall be hand wheel. Do not use lever or other tools to avoid damaging the valve. When the hand wheel rotates clockwise, it is closed, otherwise it is open. Son ah should be fair in use and ensure accurate use methods and means.

5. The bolts of the packing gland of the stainless steel elbow valve shall be tightened evenly and shall not be pressed into a crooked state, so as to avoid bumping, hindering the movement of the valve stem or causing leakage.

6. During the use of stainless steel elbow, it shall always be kept clean, and the transmission thread must be lubricated on schedule. When a fault is found, it shall be stopped immediately to find out the cause and remove the fault.

Casting workshop forklift

Hebei Junya Precision Machinery Co., Ltd., founded in 2017, is a high-tech enterprise integrating product design, mold development, casting, processing, surface treatment, testing and inspection and sales services. The factory covers an area of 5000 square meters and is located in Huanghua economic and Technological Development Zone, Hebei Province. The company has superior geographical location and convenient transportation. After years of development, the company has introduced advanced production equipment and management experience in various industries, and trained dozens of excellent professional R & D and technical talents.

At present, the company has more than 100 employees and more than 20 technical and R & D personnel. The company’s main products are stainless steel cast pipe fittings, quick connectors, ball valves, check valves, precision accessories, marine hardware, cast auto parts, etc. The product material is mainly 304 304L 316 316L CF8M WCB 1.4408, etc. The company officially passed ISO9000 certification in 2020 and is actively preparing for TS16949 quality system certification. With its good product quality and reputation, the company has become more and more prominent in the international market, with partners all over the world.

In 2019, the export volume accounted for more than 60% of the total sales, and has established long-term and stable cooperative relations with many enterprises in Europe, the United States and Japan. The company always adheres to the business philosophy of heart, innovation and ingenuity. Based on the principle of seeking development from R & D, meeting opportunities in development, building trust in opportunities and consolidating contacts in trust, we look forward to cooperating with you. For details, please contact 18902146189.


Post time: May-13-2022