Flange is a pipe and pipe interconnection parts, used for the connection between the end of the pipe, where in the two planes around the perimeter of the use of bolted connections at the same time closed connection parts, المعروف بشكل عام “شفة”. لذلك, الحافة هي أيضا جزء مهم من صمام الفراشة.
Flange butterfly valve design structure is novel, الحجم الكلي صغير, وزن خفيف; flange butterfly valve butterfly plate adopts double eccentric, open and close quickly, easy to operate and save energy.
دouble flange butterfly valve is a kind of control valve widely used in pipelines. It consists of two flange connections in which a rotatable butterfly valve is installed. The main function of the double flange connection butterfly valve is to control the fluid in the pipeline and keep it flowing steadily within a certain range.
مain features of flange butterfly valve
- صغيرة وخفيفة الوزن, easy to disassemble and maintenance, ويمكن تثبيته في أي موضع.
- Simple and compact structure, small operating torque, 90 ° turn to open quickly.
- Flow characteristics tend to straight line, أداء تنظيم جيد.
- The connection between butterfly plate and valve stem adopts pinless structure, which overcomes the possible internal leakage point.
- The butterfly plate outer circle adopts spherical modelling, improve the sealing performance and extend the service life of the valve, with pressure opening and closing more than 50,000 times still maintain zero leakage.
- The sealing member can be replaced, and the sealing is reliable to achieve two-way sealing.
Comparative advantages of double flange butterfly valve
- توفير الفضاء: compared with other types of valves, double flange connection butterfly valve is small in size and compact in structure, which can save pipeline space and facilitate maintenance.
- Strong corrosion resistance: double flanged butterfly valve is made of stainless steel, carbon steel and other high-quality materials, the valve has good sealing, strong corrosion resistance and long service life.
- سهل تنفيذه: double flange connection butterfly valve can be manually, الهوائية, electrically and other ways to achieve switch control, easy to operate, convenient.
- Small starting power: double flange connection butterfly valve requires small starting power in the start-up process, which can be controlled manually or electrically.
- Wide applicability: double flange connection butterfly valve is suitable for water, غاز, liquid and other media pipeline, involving a wide range of industries.
Application of double flange butterfly valve
Double flange butterfly valve is widely used in chemical, معالجة المياه, تدفئة, air conditioning, البترول, electric power and other industries. In these industries, double flanged butterfly valves mainly play the role of switching, تنظيم, flow control and so on.
فيما بينها, double flange butterfly valves are more and more widely used in the water treatment industry. In the field of sewage treatment, water treatment and other fields, double flange butterfly valves are widely used in flow control, pressure control and other aspects.
Double flange butterfly valves are also divided into different materials and sizes, which FLUID TECH GROUP,China will introduce to you buyers next.
How to select صمام فراشة ذو شفة مزدوجة
When buying double flange butterfly valve, مجموعة التكنولوجيا السوائل,China advise buyers to consider the following aspects:
- Select different materials according to different use environments. على سبيل المثال, double flange butterfly valves used in strong acid and alkali environments need to choose materials with good corrosion resistance.
- According to the actual need to choose the appropriate specifications and models. Different specifications and models of double flange butterfly valve can withstand different pressure, flow and other parameters.
- Pay attention to the working conditions of double flange butterfly valve. على سبيل المثال, درجة حرارة, ضغط, medium and other aspects need special attention to avoid failure caused by the use of the environment does not meet the requirements.
Common material and applicable condition of double flange butterfly valve
الحديد الزهر الرمادي:
الضغط المعمول به : ≤1.6pa
درجة حرارة قابلة للتطبيق : -15~ 200 ℃
الوسيلة القابلة للتطبيق: الماء/الهواء/الغاز وما إلى ذلك.
الحديد الزهر الدكتايل:
الضغط المعمول به : ≤4.0mpa
درجة حرارة قابلة للتطبيق : -30~ 350 ℃
الوسيلة القابلة للتطبيق : الماء/مياه البحر/البخار/الهواء/الغاز
الصلب الكربوني:
الضغط المعمول به: ≤32.0mpa
درجة حرارة قابلة للتطبيق: -29~ 425 ℃
الوسيلة القابلة للتطبيق: التطبيقات غير التآمرية, بما في ذلك الماء, النفط والبخار
سبيكة الصلب :
درجة حرارة قابلة للتطبيق: ارتفاع الضغط -30 ~ 593 ℃
الوسيلة القابلة للتطبيق: التطبيقات غير التآمرية, بما في ذلك الماء, النفط والبخار
الفولاذ المقاوم للصدأ
درجة حرارة قابلة للتطبيق: -268~ 649 ℃
الوسيلة القابلة للتطبيق: وسائل الإعلام التآكل / درجة حرارة منخفضة للغاية / ارتفاع درجة الحرارة خالية من التآكل
سبيكة النحاس
درجة حرارة قابلة للتطبيق: -15~ 200 ℃
الوسيلة القابلة للتطبيق: الأكسجين/مياه البحر
Why we recommend China double flange butterfly valve?
الصين, as a major infrastructure country and a rising star in industrialisation, has become quite sophisticated in the manufacture of butterfly valves.In addition to experience and knowledge, China has better-qualified workers, strict production standards, and competitive prices. As a leading butterfly valve manufacturer in China, we FLUID TECH GROUP are more confident to win in quality and service provider.
If you need not only a supplier, but also purchasing guidance and instruction in its use, choose FLUID TECH GROUP and you will not be disappointed.