Introducing the AOC-9031 Series - an exemplary range of Single Parallel Sliding Gate Valves, commonly referred to as flat gate valves. These innovative control valves are pivotal in the production process, boasting exceptional opening and closing capabilities. With a full bore design, they offer remarkably low flow resistance, coupled with impressive sealing performance that ensures leak-free operations. The ease of operation further enhances their appeal. Ideally suited for refined oil product transportation pipelines and storage systems, as well as wellhead equipment used in oil and natural gas extraction, these valves can seamlessly handle media with suspended particles and fibers.
Discover the unparalleled performance of the AOC-9032 Series Double Parallel Sliding Gate Valves, a vital component in the realm of control valves within the production process. These valves feature a distinctive metal contact structure, delivering consistent and reliable operation with superior cut-off capabilities. They are perfectly engineered for use in emergency shut-off scenarios, venting applications, and large-diameter control systems, even under the most challenging conditions such as high-temperature, high-pressure, and extremely low-temperature environments. Expand their application to refined oil product transport and storage, oil and natural gas wellhead devices, and systems conveying media laden with particles and fibers. Additionally, they are ideal for independent steam turbine feed systems and other demanding high-temperature, high-pressure particulate conditions.
| Body Type |
AOC-9031 Single Parallel Sliding Gate Valves |
AOC-9032 Double Parallel Sliding Gate Valves |
AOC-9033 Spring Loaded Double Parallel Sliding Gate Valves |
| Actuator Size |
1.1/2''(40A)-36''(900A) |
1.1/2''(40A)-36''(900A) |
1.1/2''(40A)-24''(600A) |
| Plug Size |
1.1/2''(40A)-36''(900A) |
1.1/2''(40A)-36''(900A) |
1.1/2''(40A)-24''(600A) |
| Body Rating |
ANSI 150-300 |
ANSI 150-600 |
ANSI 150-1500 |
| Fluid Temperature |
-20~+250ºC |
-20~+450ºC |
-20~+566ºC |
| Connections |
Flanged(RF, RTJ), Butt Weld, Socket Weld(SW, BW) |
| Body Materials |
A216WCB/C,A217 WC6/9, A351 CF8, A351CF8M,etc |
| Trim Materials |
A105+ENP+PTFE,SUS316+Stellite, etc |
SUS316+Stellite |
| Flow Materials |
ON-OFF |
ON-OFF |
ON-OFF |
| Leakage |
Metal Seat |
ANSI Class V |
ANSI Class V, VHS |
ANSI Class V, VHS |
| Soft Seat |
Non-guided Structure Features
1. Our innovative design boasts a gate without a guide hole, achieving a sleek, compact form that is both lightweight and efficient.
2. The gate offers versatile channel designs-V-shaped, semi-circular, or pentagonal-equipping the valve with versatile regulating capabilities. This ensures precise control at any opening degree, seamlessly meeting the diverse flow requirements of your pipeline systems (refer to the diagram on the right).
3. Engineered with dual floating valve seats, our valve guarantees longevity through its soft-hard composite seal. In the event of an abnormal internal pressure surge within the valve cavity, the floating valve seat is designed to automatically release excess pressure back into the pipeline, maintaining optimal safety.
4. Featuring external grease injection valves, our design allows for easy maintenance. If leakage occurs due to seal pair wear, simply inject sealing grease to immediately prevent any potential valve leakage.
5. Strategically placed, the drain valve at the bottom of the valve body efficiently clears any accumulated impurities, ensuring smooth and uninterrupted operation.
Guided Gate Structure Diagram
1. When fully open, our gate's guide hole aligns seamlessly with the valve body channel, forming a straight pipe section that facilitates direct media purging, as illustrated in the diagram above.
2. During the dynamic process of opening or closing, the valve seat maintains constant contact with the gate. This innovative feature allows the soft valve seat to automatically scrape away impurities from the gate, making the flat gate valve an ideal choice for media containing suspended particles and fibers while safeguarding against seal surface damage caused by thermal deformation of the valve body.
3. Our valve is equipped with dual floating valve seats and a robust soft-hard composite seal, ensuring an extended service life and reliable performance.
4. With a built-in safety mechanism, the floating valve seat automatically releases excessive pressure into the pipeline whenever the valve cavity pressure rises unexpectedly, ensuring safety and stability.
5. The bottom-positioned drain valve efficiently removes accumulated impurities from within the valve body, maintaining the valve's efficiency and reliability.
SNT Machinery (Qingdao) Co., Ltd. stands proud as a leading producer of control valves, seamlessly integrating manufacturing, design, sales, and service under one roof. Positioned in vibrant Qingdao, Shandong province, our expansive 42,000m² state-of-the-art facility boasts modern workshops and cutting-edge production equipment. As a distinguished high-tech enterprise equipped with independent intellectual property rights, we embrace advanced management and production expertise from across the globe. Our dynamic team of over 150 employees includes 15% dedicated R&D specialists and 30% graduates or higher degree holders. With a commitment to excellence, our high-quality production management team and innovative R&D drive the creation of premium valves used extensively in the petrochemical, oil, and coal chemical industries. Remarkably, our sales value approached an impressive 100 billion in 2017.
SNT proudly holds the TS Special Equipment Manufacturing Certificate and ISO 9001 certification, secured through rigorous quality standards. Our esteemed qualifications extend to SINOPEC, CNOOC, PETROCHINA, and SINOCHEM, strengthened by numerous national patents in advanced technologies. We design and manufacture an extensive range of valves adhering to standards such as ANSI, API, DIN, BS, and JIS. By blending the best attributes of globally renowned valves with our proprietary research, we expertly craft an array of valves, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves.
Our impressive range continues with T Three-eccentric Center Butterfly Valves, V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. Operating methods encompass manual, power-driven, pneumatic, and hydraulic drives. Constructed with materials like A216 WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M, our valves meet specifications from 1/2" to 120", with working pressures from ANSI 150# to 2500# and temperatures ranging from -196ºC to 1100ºC.
SNT Valves, rooted in superior production technology and an unwavering quality assurance system, serve a wide array of industries, including petrochemical, oil, steel, iron, paper manufacturing, and power stations. Our esteemed clientele includes SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and SINOPEC Changling branch, among others, underscoring our expansive impact and reliability.
At SNT, our dedication to prioritizing customer profits drives us to deliver exceptional quality and build a reputable brand. Our comprehensive quality assurance and after-sales systems ensure that SNT valves forge enduring partnerships with our customers, paving the way for mutual growth and success.
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