Valve one-stop supplier
Enterprises have advanced production equipment, the use of new industrial concepts and strong technical force, to produce high quality products in line with international standards.
About Us
Craney Industrial (Shanghai) Co., Ltd. is an import and export trading company specializing in valves and accessories in Shanghai. Its products include fluorine-lined and rubber-lined valve series, pipeline ball valve series and other valve series. Among them, fluorine-lined and rubber-lined valves are the company's main products. Due to the unique performance of plastics in resisting strong corrosive media, lined in all kinds of cast iron, cast steel, carbon steel, stainless steel valve body or pipe fittings and the appearance of the inner parts of the valve. It can not only be suitable for strong corrosive media under different conditions, but also replace expensive rare metals, and the corrosion service life can be increased by 5-10 times. It is the first choice for petroleum, chemical, pharmaceutical, smelting, food and chemical fertilizer industry devices. It is favored by users and has attracted great attention from relevant departments such as scientific research institutes and design institutes.
✔The technical team has more than 20 years of engineering design and manufacturing experience.
✔ Has rich experience in cooperation with global end customers and the world's top 500 EPC companies.
Valve Solution Expert
Oil
Medicine
Chemical
Smelting
Food
Provide global fluid control solutions
Provide global fluid control solutions
Provide global fluid control solutions
Cory ·
Advantage
Sophisticated modern CNC machining equipment and unique technology to achieve the perfect presentation of the enterprise, independent technology development of high quality products fully reflects the enterprise's unremitting pursuit of brand internationalization strategy.
Focus on valve safety technology research and development
Valve safety is the core of the core, we continue to innovate and develop valve safety technology
A model of craftsman spirit of man-machine integration
With the whole industry chain service capacity, from castings, valve bodies to accessories are independent production, built a leading domestic flexible manufacturing center.
Internationally recognized safety quality standards
Whether it is purchased parts, components or self-made products, follow a unified quality control process standard system.
Refined Gold Casting high quality Products
Control product quality from the source and produce high quality products that meet international standards.
News
Why can't double seal valve be used as shut-off valve?
2024-05-10 17:51
The advantage of the double-seat valve spool is the force balance structure, allowing large pressure differences, and its outstanding disadvantage is that the two sealing surfaces cannot be in good contact at the same time, resulting in large leakage. If it is artificially and forcibly used to cut off the occasion, the effect is obviously not good, even if it has made many improvements (such as double-sealed sleeve valve), it is not desirable.
2024-05-10 17:51
For single core, when the medium is open flow type, the valve stability is good; when the medium is closed flow type, the stability of the valve is poor. The double-seat valve has two valve cores. The lower valve core is in flow closure and the upper valve core is in flow opening. In this way, when working with small opening degree, the flow closing valve core is easy to cause vibration of the valve. This is the reason why the double-seat valve cannot be used for working with small opening degree.
Why is the stem of the straight stroke regulating valve thinner?
2024-05-10 17:52
It involves a simple mechanical principle: large sliding friction and small rolling friction. Straight travel valve stem up and down movement, packing a little tight, it will be the stem wrapped very tight, resulting in a larger return. For this reason, the valve stem is designed to be very small, and the filler is often used to have a small coefficient of friction to reduce the backwardness. However, the problem caused by this is that the valve stem is thin, which is easy to bend and the filler life is short. To solve this problem, the best way is to use the travel valve stem, that is, the angle of the type of control valve, its stem than the straight stroke stem 2~3 times thicker, and the use of long life of graphite packing, stem stiffness, packing long life.
CRN Industries (Shanghai) Co., Ltd.
Address: Room 1518, A3 Office Building, Greenland Future Center, nanqiao town, Fengxian District, Shanghai
E-mail:export@crnindustry.com
Mobile:0086 15026678481
Office Phone:0086 2131781280
