Stainless steel Flanges are essential accessories for pipeline connections. According to the standards, they are divided into JIS BS DIN ANSI GOST Italian standards. Among them, DIN, JIS, BS standard non-Carbon Steel Flanges are the most common, popular and widely used. flange. Stainless steel flanges are divided into two processes: forging and casting. Among them, cast stainless steel flanges have low price and stable performance, and are widely used in Europe and South Korea Stainless Steel Flanges,Stainless Flange,Flange Stainless,Stainless Steel Forged Flanges Inner Mongolia Overseas.Trade co.,LTD , https://www.flangevalvejoint.com
No matter what electrical appliances are used, safety is the first place in industrial sites. Explosion-proof electrical appliances are a more powerful way to ensure safety. This is the responsibility of explosion-proof electrical appliances over the years; colleagues explosion-proof electrical appliances in the petrochemical industry. The importance is also unmatched by other electrical appliances.
Take the barrier, for example, and the barrier also has important implications for explosion-proof electrical appliances:
In general, countries and manufacturers with a better awareness of crisis management, in order to prevent enterprises from responding quickly to emergencies, can quickly regain their vitality. Fireproof and explosion-proof distribution cabinets are a must-have option. Products purchased are also timely read instructions. ,According to the requirements of the manual to accurately perform the installation operation.
First of all, we define the definition of the safety barrier, which is also known as the safety cage, the safety interface of the intrinsically safe circuit. It can transmit electric signals bidirectionally between the safety area and the non-safety area, and can limit the failure caused by The energy transmission from the safety zone to the danger zone is generally zener and isolated. Explosion-proof switchgear safety barrier is installed in a safe place to receive signals from dangerous areas and output safety signals.
The safety zone must be used in the on-site explosion-proof zone, and isolation measures can be used in the non-explosion-proof zone. However, in order to ensure the reliability of the data, the safety barrier is generally used. The safety barrier is used in the design of the intrinsically safe explosion-proof distribution box system. It is a device that is installed in a safe place and contains intrinsically safe circuits and non-intrinsically safe circuits. The circuit restricts the intrinsic safety to the site through current limiting and voltage limiting circuits. The energy of the loop, which prevents the dangerous energy of the non-intrinsically safe circuit from entering the intrinsically safe circuit, is an important part of the intrinsically safe system. If the intrinsically safe instrument may not work properly with a safety barrier, it may produce sparks that will not cause explosion protection. Isolated barriers are commonly used in China. In addition to providing intrinsically safe circuits, they also have signal isolation functions that can effectively prevent ground loop currents and other signal interference. The Zener type safety barrier needs to be grounded separately, has a large construction volume, and does not have isolation function. It is not recommended. In the event of a short circuit, no explosion will occur. The on-site intrinsically safe instrument is lower in power than the ordinary instrument, and the low energy provided by the explosion-proof power distribution cabinet safety barrier can be driven without generating sparks.
The safety barrier is designed to be an energy limiting interface between the field device and the control room device, so the safety barrier ensures that the energy transmitted to the field device through it is intrinsically safe regardless of whether the control room device is in a normal or fault state. . China's national instrument and instrument explosion safety supervision station is the authoritative organization of the People's Republic of China to supervise the production of safety explosion-proof products. It has strict, scientific, and detailed provisions for explosion-proof distribution cabinet safety barrier products. Only companies that have passed the supervision station and their companies The products developed and produced have the safety performance that meets the standards, otherwise it may cause incalculable damage to the user's equipment, personnel, and production.
The biggest features of stainless steel flanges are good stability, strong corrosion resistance, acid and alkali resistance, and are widely used in pipeline systems in chemical, pharmaceutical, food, pharmaceutical and other special industries.
When in use, the flange is evenly welded to one end of the pipeline with a special electrode, and then fastened with bolts to effectively connect the pipeline, valve, pump and other equipment accessories, so that the entire pipeline is integrated and starts to work normally.
It is an indispensable pipe fitting that must be used in pipeline systems and equipment such as machinery, petroleum, chemical industry, water conservancy, medicine, food, and papermaking. It provides convenience for the cleaning, inspection and maintenance of the pipeline and reduces the engineering cost.
Types of stainless steel flanges:
According to the shape can be divided into: FF, RF, BLIND, SLIP-ON, Welding Neck
, Threaded , Socket Weld
According to the pressure can be divided into: PN10, PN16, PN25, PN40, PN63, PN100,
15OLBS.300LBS
According to the process, it can be divided into: forging flange, precision casting flange, steel plate flange
According to the material can be divided into: SUS304 SUS304L SUS316 SUS316L 321 201
According to the production process, it can be divided into: a: forged flange b: stainless steel plate flange c: precision casting stainless steel flange
A safety barrier between an intrinsically safe circuit and a non-intrinsically safe circuit. A device that limits the voltage and current supplied to an intrinsically safe circuit to a certain safe range.