Discover the superior engineering of the AOC-9031 Series Single Parallel Sliding Gate Valves, also renowned as flat gate valves. These control valves are pivotal in the production process. Their remarkable features include an outstanding full bore design, minimal flow resistance, and superior sealing capabilities, ensuring effortless operation. Perfectly designed for the transportation pipelines and storage facilities of refined oil products, these valves excel in wellhead devices for oil and natural gas extraction. They are ideal for pipelines transporting media with suspended particles and fibers, offering unmatched reliability and efficiency.
Experience the exceptional performance of the AOC-9032 Series Double Parallel Sliding Gate Valves, a critical type of control valve in the production process. These valves feature a unique metal contact structure, guaranteeing exceptional reliability and unparalleled cut-off performance. They are versatile, making them ideal as emergency shut-off valves, vent valves, or large-diameter control valves in high-temperature, high-pressure, and extremely low-temperature environments. Their applications extend to transportation pipelines and storage equipment for refined oil products, wellhead devices for oil and natural gas extraction, pipelines for media with suspended particles and fibers, and independent steam turbine feed systems. Perfect for challenging conditions with high-temperature and high-pressure particles, these valves ensure optimal performance in the most demanding scenarios.
| 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. Experience the benefits of a guiding-hole-free gate, which translates to a streamlined, compact design, offering a valve that's not only lightweight and space-efficient but also highly effective.
2. The gate offers versatile design options with V-shaped, semi-circular, or pentagonal channels, thereby equipping the valve with exceptional regulating capabilities. This ensures precise adjustments to any opening degree, satisfying the diverse flow demands of your pipeline systems (see the right diagram).
3. Engineered for durability, the two valve seats are floating with a unique soft-hard composite seal, fostering a long-lasting lifecycle. In instances of abnormal valve cavity pressure spikes, the floating seats smartly release the excess pressure into the pipeline, ensuring seamless operation.
4. Strategically located grease injection valves on the valve body's external seats offer a practical solution for sealing wear. Should leakage occur, simply inject sealing grease to effortlessly maintain an impeccable seal and prevent valve leakage.
5. To enhance functionality, a drain valve is thoughtfully installed at the bottom of the valve body, enabling the efficient discharge of accumulated impurities within the valve.
Guided Gate Structure Diagram
1. When fully open, the gate's guide hole aligns perfectly with the valve body channel, forming a flawless straight pipe section that allows for uninterrupted media flow and direct purging (see above diagram).
2. As the gate travels during the opening or closing phase, the valve seat maintains constant contact and alignment with the gate. The soft valve seat ingeniously scrapes impurities from the gate, making the flat gate valve ideal for handling media containing suspended particles and fibers while safeguarding the seal surface from thermal deformation damage.
3. Designed for longevity, the floating valve seats with a soft-hard composite seal deliver a long-lasting performance.
4. In the event of abnormal rises in valve cavity pressure, the innovative floating valve seat automatically releases the excess pressure, maintaining equilibrium within the pipeline.
5. For added convenience, a drain valve is fitted at the valve body's base, effectively flushing out accumulated impurities from within the valve.
SNT Machinery (Qingdao) Co., Ltd. stands as a beacon of excellence in the realm of control valves, masterfully integrating manufacturing, design, sales, and unparalleled services. With a promising head start and rapid advancement, SNT is strategically nestled in the heart of Qingdao, Shandong province, sprawling over a vast 42,000 square meters. Our state-of-the-art workshops and cutting-edge production facilities position us as a high-tech enterprise with proprietary intellectual rights, infused with globally imported management and production expertise. Backed by a dynamic team of over 150 dedicated professionals, where 15% are R&D specialists and 30% hold advanced degrees, we are driven by a relentless pursuit of quality and innovation. Our high-caliber production management and pioneering R&D efforts enable us to deliver superior valves, extensively employed across petrochemical, oil, and coal chemical sectors. Remarkably, we achieved a sales milestone nearing 100 billion in 2017.
SNT proudly possesses the prestigious TS special equipment manufacturing certificate along with the esteemed ISO 9001 certification. Our esteemed credentials extend to the net qualification certificates from SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. With numerous national patents under our belt, we specialize in designing and crafting a full spectrum of valves in strict adherence to ANSI, API, DIN, BS, and JIS standards. By synthesizing the advantages of globally renowned valves and leveraging our independent R&D, we excel in producing an extensive array of valves. Our lineup includes GLOBE Valves, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and T Three-eccentric Center Butterfly Valves.
Our diverse valve repertoire also features V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. We offer versatile driving options encompassing manual operation, power-driven, pneumatic, and hydraulic drives. The main component materials include A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, ensuring durability and performance. Specifications range from 1/2" to an impressive 120", withstanding pressures from ANSI 150# to 2500#, and operating seamlessly in temperatures from a chilly -196ºC to a scorching 1100ºC.
Leveraging advanced production technology and a robust quality assurance system, SNT Valves have earned a commendable reputation across diverse industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our distinguished clientele includes renowned entities like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and SINOPEC Changling branch, to name a few. Our valves are a trusted choice for these industry giants, reaffirming our commitment to excellence.
At SNT, we put our users' prosperity at the forefront, dedicating ourselves to the creation of superior quality and a distinguished brand reputation. Our impeccable quality assurance and comprehensive after-sales service systems ensure that SNT valves forge prosperous partnerships with all our valued customers, paving the way to mutual success and growth.
Audited Supplier 
){kind=link}