Valves are crucial components in the industrial field, commonly used to regulate and control the flow of various fluids. It is necessary for us to understand the connection methods and standards of valves when using them. In this article, we will comprehensively introduce the connection methods and standards of valves. There are various connection methods and standards for valves, and this article will introduce several common ones.
1. Flange Connection
Flange connection is a commonly used connection method in pipeline systems. It is suitable for large-diameter valves and has advantages such as firm connection, good sealing, and safety. Flange connections include flat flange, raised face flange, ring joint flange, and butt-welded flange.
Flat flange connection involves matching the valve with the pipeline flange and securing them together with bolts. The advantage of this connection method is its simple structure and ease of disassembly. The disadvantage is that the sealing is not good enough and it is not suitable for high-pressure, high-temperature, and corrosive media applications.
Raised face flange connection involves matching the raised face flange with the pipeline flange and securing them together with bolts. The advantages of this connection method are tight connection, good sealing, and suitability for high-temperature, high-pressure, and corrosive media applications. The disadvantage is that the structure is more complex, making installation more difficult.
Ring joint flange connection involves inserting the valve tip directly into the flange hole and securing them together with bolts. This connection method is suitable for large-diameter, low-pressure, and easy-to-disassemble applications. The disadvantage is that the sealing is relatively poor.
Butt-welded flange connection involves welding the valve onto the pipeline flange and securing them together with bolts. This connection method is suitable for high-pressure, high-temperature, and corrosive media applications. The disadvantage is that the structure is more complex, making installation more difficult.
COVNA Flange Electric Ball Valve
● ٹارک کی رینج 50 این ایم سے 4000 این ایم تک ہے۔
● والو کی قسم: 2-طریقے اور 3-طریقے اور 4 وے فلینج بال والو (ٹی ٹائپ اور ایل قسم)
● فلینج اسٹینڈرڈ: اے این ایس آئی ، جے آئی ایس ، ڈی آئی این ، جی بی دستیاب ہیں۔
● ٹی ایف ایم 1600 نشست کا مواد (پی ٹی ایف ای، آر ٹی ایف ای، ٹی ایف ای / ایس ایس اختیارات)
● بال سلاٹ میں بلو آؤٹ پروف اسٹیم پریشر بیلنس سوراخ
● وسیع پیمانے پر کیمیائی صنعت، کاغذ اور گودا، پانی کے علاج، وغیرہ میں استعمال کیا جاتا ہے.
COVNA Pneumatic Flange Ball Valve
● خصوصیات: طویل سروس لائف، ماحول دوست، آسان تنصیب، وغیرہ
● ایکٹوایٹر قسم: موسم بہار کی واپسی (واحد اداکاری) اور ڈبل اداکاری
● والو کی قسم: 2 طریقوں اور 3 طریقوں اور 4 راستہ فلنگا گیند صمام (ٹی قسم اور ایل قسم)
● گردش: چوتھائی موڑ
● قابل اطلاق معیار: جی بی، اے این ایس آئی، جے آئی ایس، ڈی آئی این
● کنکشن قسم: فلانگے اختتام
● مناسب ذریعہ: پانی، تیل، ہوا، گیس وغیرہ
2. Threaded Connection
Threaded connection involves connecting the valve to the pipeline through threads. This connection method is suitable for small-diameter valves, with a simple structure and easy disassembly. However, the strength and sealing of threaded connections are not as good as flange connections.
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COVNA Threaded Electric Ball Valve
● ٹارک: 50این ایم یا 4000این ایم
● گردش: چوتھائی موڑ
● ایکٹوایٹر قسم: آف ٹائپ پر، قسم اور ذہین قسم کو ریگولیٹ کرنا
● مواد: سٹین لیس اسٹیل
● Connection: 3PC Thread
● پانی، تیل، ہوا وغیرہ کے لیے موزوں ہے۔ ایچ وی اے سی، آبپاشی، پانی کے علاج وغیرہ میں وسیع پیمانے پر استعمال کیا جاتا ہے۔
COVNA Threaded Pneumatic Ball Valve
● Available In Spring Return(Single Acting) And Double Acting Pneumatic Actuator.3. Welding Connection
Welding connection involves welding the valve to the pipeline. This connection method is suitable for high-pressure, high-temperature, and corrosive media applications. Welding connections have high strength, good sealing, and a simple structure. However, welding connections require a high level of technical expertise and operational requirements.
COVNA Welding Electric Ball Valve
● خصوصیات: کمپیکٹ ڈیزائن، ماحول دوست، آسان تنصیب، وغیرہ
● ٹارک: 50این ایم یا 4000این ایم
● گردش: چوتھائی موڑ
● ایکٹوایٹر قسم: آف ٹائپ پر، قسم اور ذہین قسم کو ریگولیٹ کرنا
● مواد: سٹین لیس اسٹیل
● Connection: 3PC Welding
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COVNA Welding Pneumatic Ball Valve
● Available In Spring Return(Single Acting) And Double Acting Pneumatic Actuator.
● High Torque Up To 4678Nm.
● 3-Piece Ball Valve Design. Easy To Maintain And Extend Service Life.
● NPT Thread and G Thread are Available.
● Connection Type: Welding
● Wide Application Range.
4. Clamp Connection
Clamp connection involves fixing clamps around the valve and securing them to the pipeline to achieve the connection. This connection method is suitable for small-diameter valves, with a simple connection and convenient disassembly. However, the strength and sealing of clamp connections are not as good as flange connections.
COVNA Tri Clamp Electric Ball Valve
● آئی ایس او 5211 معیاری براہ راست ماؤنٹنگ ایکٹیوایٹر
● کور اور والو باڈی کے درمیان اینٹی سٹیٹک ڈیوائس
● ڈبل تتلی کی شکل بہار خودکار کمپریشن پیکنگ ڈیزائن
● دباؤ کے فرق کی اجازت دیں: برائے نام دباؤ 1.6 ایم پی اے سے کم
● رساؤ: صفر رساؤ، واپسی کا فرق: ±2.5٪
COVNA Tri Clamp Pneumatic Ball Valve
● Rack and pinion pneumatic actuator with high torque up to 4678Nm.
● Available in spring return and double acting type actuator to meet your project's requirements.
● Easy to install and easy to repair to extend the lifespan.
● 1 Million lifespans. Offering a cost-effective valve solution for your project.
In conclusion, different connection methods for valves are suitable for different applications. When choosing a connection method, it is important to make a reasonable choice based on the actual situation to ensure the efficiency and safety of the pipeline system.
Next, let’s take a look at the standards for valves. Valve standards refer to the unified specifications for performance parameters, structural design, dimensions, connection methods, etc. Here are some introductions to valve standards:
1. American National Standards (ANSI): This is a standard established by the American National Standards Institute, which includes standards in various fields, including valve standards.
2. Japanese Industrial Standards (JIS): These are industrial standards established by the Japanese government’s standardization organization, which also includes valve standards.
3. German Institute for Standardization (DIN): This is a standard established by the German standardization organization and is also widely used in many European countries.
4. International Organization for Standardization (ISO): This is a standard established by the International Organization for Standardization, which is globally recognized as the highest standard.
Valve standards have different requirements for different application environments, and we need to choose the appropriate valve standards based on specific situations.
When selecting valves, we need to pay attention to the following points:
1. Identify valve quality: Identify valve quality through various methods such as checking valve markings and inspecting valve appearance.
2. Select suitable applications: Different valves are suitable for different applications, and we need to choose the appropriate valve based on specific situations.
3. Assess valve performance: We need to assess valve performance based on specific conditions, such as temperature, pressure, flow rate, etc., and select the appropriate valve.
4. Proper installation and commissioning: Proper installation and commissioning of valves are crucial for their performance. We need to carefully read the valve user manual and install and commission the valve correctly.
In summary, valve connection methods and standards are crucial for the use of valves. We need to choose the appropriate valve connection method and standard.inquiry@covna-china.com
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