API607 صمام الكرة غريب الأطوار والعتاد الدودي, صمام الكرة غريب الأطوار المثبت على القمة
Worm Gear Eccentric Ball Valve; Top-Entry Eccentric Ball Valve Design Standards:
Design and manufacturing standards conform to: GB12237—1989, أسم B16.34, API 6D General Purpose Valve Flanges and Butt-Welded Steel Ball Valves
Structural length conforms to: GB12221, أسم B16.10;
Connection end dimensions conform to: جي بي/T79, GB9113, HG20592; ASME.B-16.5A, أسم B16.25;
Inspection and testing conform to: جي بي/تي 9092, GB/T13927-1992, واجهة برمجة التطبيقات 598; General Purpose Valve Pressure Test
Fire protection design conforms to: واجهة برمجة التطبيقات 607;
API607 صمام الكرة غريب الأطوار والعتاد الدودي, صمام الكرة غريب الأطوار المثبت على القمة
Worm gear eccentric ball valves are categorized by application into six major series: general-purpose valves, pipeline valves, slurry-specific valves, gas-specific valves, petrochemical-specific valves, and pulverized coal injection-specific valves. They are available in manual, هوائي, and electric operation, with eight pressure ratings (PN0.25～10.0Mpa) and hundreds of specifications (40～1000). These valves are a replacement for gate valves, صمامات الكرة الأرضية, Y-type valves, and ball valves in the petroleum, كيميائية, metallurgical, power, and gas industries. Currently, they are widely used in pulverized coal injection in the steel industry, الطين, mother liquor, and alumina powder conveying in the alumina industry, هيدروليكي (or dry) ash removal in the power industry, and in the petrochemical and gas industries.
Worm Gear Eccentric Hemispherical Valve Applications of Top-Mounted Eccentric Hemispherical Valve
General Purpose Valve: مصممة بشكل معقول وصغيرة الحجم في الهيكل, ويتميز بمقاومة التدفق المنخفضة, أداء الختم الجيد, وعملية سهلة ومرنة. It is particularly suitable for low-pressure pipelines carrying media such as water, مياه الصرف الصحي, بخار, واللب. يمكن تجهيزه بأجهزة كهربائية أو هوائية للتشغيل الآلي عن بعد. (للوسائط غير المسببة للتآكل مثل الماء, بخار, مياه الصرف الصحي, اللب, والطين)
Pulverized Coal Injection Valve: جهاز مثالي للتحكم في النقل الصلب للغازات المحملة بالغبار والسوائل الجسيمية, مثل حقن الفحم المسحوق. It is widely used in various pipeline controls in blast furnace pulverized coal injection, أنظمة السحق, وأنظمة إزالة الغبار في المعادن, معالجة المعادن, وعمليات إنتاج الطاقة. إنها تتبنى هيكلًا مستقيمًا, ضمان التدفق السلس ومنع تراكم الرماد والانسداد. زوج الختم مصنوع من مادة سبائك Co-Cr-W ويخضع لمعالجة حرارية خاصة, مما يجعل الصمام مقاومًا للتآكل والتآكل. يتميز السطح الكروي اللامركزي للصمام بأداء تعويض تلقائي; عن طريق ضبط البراغي على العتاد الدودي, لا يزال بإمكان زوج الختم تحقيق تأثير إعادة الختم حتى في ظل درجة معينة من التآكل. (للغازات المحملة بالغبار والسوائل الجسيمية)
Worm Gear Eccentric Ball Valve, Top-Entry Eccentric Ball Valve Applications:
Petrochemical Industry Special: Designed for high-pressure, high-temperature media in the petrochemical industry, filled with flammable, explosive, and easily corrosive media such as weak acids and alkalis. Features include excellent sealing, مقاومة التآكل, easy opening and closing, and automatic removal of scale from the valve surface. Suitable for transporting crude oil, heavy oil, and other media, as well as in petroleum cracking, food processing, and other processes. (البترول, الغاز الطبيعي, غاز الفحم, ماء, إلخ.)
Blast Furnace Gas and Gas Special: The sealing pair is made of Cr-Mn-Si hard alloy, which is fire-resistant, مقاومة للانفجار, and anti-static. The sealing pair can withstand high temperatures up to 560℃. Its corrosion resistance and anti-galling ability are more than 6 times that of stainless steel sealing pairs. It is particularly suitable for use in pipeline transportation and pressurization stations for coal gas, coke oven gas, water gas, الغاز المسال, والغاز الطبيعي. (Blast furnace gas, الغاز الطبيعي, dust-laden gas, إلخ.) For slurry mixed fluids: The ideal process valve for conveying two-phase mixed fluid media such as easily precipitated, scaled, or crystallized slurries, slurry ash, إلخ. It can overcome scale obstacles to achieve smooth closure. It features a novel structure and unique design, offering advantages such as high efficiency and energy saving, good wear resistance, ختم موثوق, عملية سهلة, فتح وإغلاق سريع, وعمر الخدمة الطويل. (Conveying process slurries, slurry ash, إلخ. containing particulate matter) For pipelines: A straight-through hemispherical valve with no reduction in diameter. The valve body channel connects to the pipeline in a straight line with the same cross-sectional area, resulting in less resistance than a reduced diameter valve. Full opening and full closing can be achieved with just a 90-degree rotation, facilitating long-distance pipeline transportation control. (Pulverized coal injection and gas transportation)
The worm gear eccentric hemispherical valve, specifically the top-mounted eccentric hemispherical valve, offers the following advantages:
1. Compact side-mounted structure and lightweight, suitable for applications requiring limited installation space.
2. مقاومة منخفضة للسوائل; its resistance coefficient is equal to that of a pipe section of the same length.
3. Simple structure, حجم صغير, وخفيفة الوزن.
4. Cutting function; it can cut off impurities (twigs, textile bags, إلخ.) in the medium when closed.
5. Tight and reliable; the sealing surface material of the ball valve widely uses plastics, providing excellent sealing performance, and it is also widely used in vacuum systems.
6. Convenient operation; فتح وإغلاق سريع; only a 90° rotation is needed from fully open to fully closed, facilitating remote control.
7. Easy maintenance; the ball valve has a simple structure, and the sealing rings are generally movable, making disassembly and replacement convenient.
8. When fully open or fully closed, the sealing surfaces of the ball and seat are isolated from the medium, preventing erosion of the valve sealing surfaces during medium flow.
9. It has a wide range of applications, with pipe diameters ranging from a few millimeters to several meters, and can be used in applications ranging from high vacuum to high pressure. When the sphere rotates 90 درجات, the entire inlet and outlet should present a spherical surface, thereby cutting off the flow.
