Introducing the AOC-9031 Series Single Parallel Sliding Gate Valves, commonly known as flat gate valves, a pivotal component in modern control systems for diverse production processes. These meticulously crafted valves exhibit superior opening and closing capabilities, characterized by a full bore design that ensures minimal flow resistance and maximized sealing efficiency. Their user-friendly operation makes them indispensable for refined oil product pipelines, sophisticated wellhead systems in oil and natural gas extraction, and pipelines tasked with conveying media rich in suspended particles and fibers. Experience unparalleled reliability in fluid control with our groundbreaking valve technology.
Discover the exceptional AOC-9032 Series Double Parallel Sliding Gate Valves, a cornerstone in advanced control valve technology. Designed with an innovative metal contact structure, these valves guarantee dependable performance with unparalleled cut-off efficiency. Perfectly suited for emergency shut-off, venting, and large-diameter control applications, they thrive under extreme conditions of high temperature, high pressure, and ultra-low temperature. These versatile valves excel in environments such as refined oil transportation, oil and gas extraction wellhead systems, complex media pipeline installations, standalone steam turbine feed systems, and challenging high-temperature, high-pressure particulate environments. Elevate your system's robustness and precision with our cutting-edge valve solutions.
| 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. A marvel of engineering efficiency, the gate is free from guide holes, resulting in a design that is not only compact but also boasts a reduced footprint, offering a valve that's both lightweight and agile.
2. Tailored for versatility, the gate can be crafted with V-shaped, semi-circular, or pentagonal channels. This design empowers the valve with exceptional regulating capabilities, adapting seamlessly to any opening degree to perfectly match the flow requirements of pipeline systems (see the right diagram).
3. Ingeniously designed, the two valve seats are floating and feature a robust soft-hard composite seal, ensuring longevity and reliability. In the event of an abnormal rise in internal cavity pressure, the floating valve seat smartly releases the excess pressure safely back into the pipeline.
4. For enhanced maintenance ease, the valve body is equipped with grease injection valves at the external seats. Should leakage occur due to seal wear, sealing grease can be conveniently injected here, effectively preventing any valve leakage.
5. Designed with practical functionality in mind, a drain valve is placed at the bottom of the valve body, allowing for the efficient discharge of accumulated impurities, thereby maintaining optimal performance.
Guided Gate Structure Diagram
1. When the valve reaches its fully open state, the guide hole in the gate aligns impeccably with the valve body channel, creating a seamless straight pipe section. This alignment allows for the direct purging of media (see above diagram).
2. During the travel of the gate as it opens or closes, the valve seat maintains constant contact and a perfect fit with the gate. The innovative soft valve seat can autonomously clean impurities off the gate during operation, making the flat gate valve ideal for media containing suspended particles and fibers, while also safeguarding against seal surface damage due to valve body thermal deformation.
3. Innovatively designed, the two valve seats are floating and feature a durable soft-hard composite seal, ensuring extended operational life.
4. In cases where the valve cavity pressure unexpectedly rises, the intelligent floating valve seat automatically releases the superfluous pressure back into the pipeline, ensuring safety and system integrity.
5. A drain valve strategically located at the bottom of the valve body facilitates the efficient removal of accumulated impurities, ensuring the valve remains in prime working condition.
SNT Machinery (Qingdao) Co., Ltd is a trailblazing leader in the realm of control valves, effortlessly blending manufacturing, design, sales, and service into one seamless entity. Launched with a high starting point and rapid development, SNT is strategically nestled in the heart of Qingdao, Shandong province. Spanning a vast area of 42,000m2, our facilities are a testament to modernity, equipped with state-of-the-art workshops and production equipment. As a high-tech enterprise, we boast independent intellectual property rights, enriched by imported cutting-edge management and production expertise. Our talented team comprises over 150 dedicated professionals, with R&D specialists making up 15% and 30% holding graduate or higher degrees. With an unwavering commitment to quality production management and pioneering research and development, we produce an impressive array of high-quality valves utilized in petrochemical, oil, and coal chemical industries. Our accomplishments speak volumes with a staggering sales value nearing 100 billion in 2017.
SNT has proudly obtained the TS special equipment manufacturing certificate and ISO 9001, alongside the prestigious net qualification certificates from SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our innovative spirit shines through with numerous national patents across various technologies. We possess the expertise to design and manufacture a comprehensive range of valves that adhere to ANSI, API, DIN, BS, and JIS standards. Seamlessly merging the best features of renowned valves worldwide with our independent R&D, we skillfully craft an assortment of valves including GLOBE, High-Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves, to name a few.
Our valve repertoire expands impressively, featuring V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. Each valve is available with multiple driving options: manual operation, power-driven, pneumatic, and hydraulic drives. Crafted with precision, the primary materials include A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, and more. Our specifications range from 1/2" to 120", designed to endure working pressures of ANSI 150# to 2500#, and operating temperatures spanning from -196ºC to 1100ºC.
Leveraging cutting-edge production technology management and a robust quality assurance system, SNT Valves have earned their place as indispensable assets across industries like 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 many others such as SINOPEC Changling branch, and Jinan branch.
We place our customers' success at the forefront, dedicating ourselves to crafting exceptional quality and fostering a reputable brand. Our impeccable quality assurance and after-sales systems ensure that SNT valves forge lasting partnerships with all our customers, paving the way for shared prosperity.
Audited Supplier 
){kind=link}