Introducing the AOC-9031 Series Single Parallel Sliding Gate Valves, also known in the industry as flat gate valves. These valves are pivotal control components in modern production processes. Renowned for their superb opening and closing capabilities, the AOC-9031 Series valves boast a full bore design, ensuring minimal flow resistance and superior sealing performance, making operation smooth and effortless. Expertly engineered for use in the transportation pipelines and storage apparatus of refined oil products, they are indispensable for wellhead devices in oil and natural gas extraction. Additionally, they excel in managing pipelines that carry media with suspended particles and fibers, showcasing their versatility and reliability.
Introducing the AOC-9032 Series Double Parallel Sliding Gate Valves, an essential control valve in today's production landscape. These innovative valves feature a distinctive metal contact structure that guarantees seamless operation and unmatched cut-off performance. They find their place among emergency shut-off valves, vent valves, or as large-diameter control solutions in environments demanding high-temperature, high-pressure, or extremely low-temperature resilience. Their applications are vast, from essential roles in transportation pipelines and storage setups for refined oil products, to vital components in wellhead devices for oil and natural gas extraction. These valves excel in managing pipelines with suspended particles and fibers, in independent steam turbine feed systems, and in scenarios demanding robustness against high-temperature and high-pressure particles, ensuring unparalleled reliability under demanding 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. This remarkable gate valve is designed without a guide hole, resulting in an ingeniously compact structure that is both small in size and remarkably lightweight. Perfectly engineered for efficiency!
2. The gate can be crafted with V-shaped, semi-circular, or pentagonal channels, endowing the valve with exceptional regulating capabilities. This versatility allows it to adjust to any degree of opening, flawlessly meeting the flow requirements of diverse pipeline systems (see the right diagram).
3. Equipped with two floating valve seats featuring a sophisticated soft-hard composite seal, this design ensures an extended service life. In situations of abnormal internal cavity pressure rises, the floating valve seat ingeniously releases high pressure back into the pipeline, safeguarding system integrity.
4. Ingeniously designed grease injection valves are strategically placed at the valve body's external seats. In the event of seal pair wear-induced leakage, sealing grease can be smoothly injected to effectively prevent valve leakage and maintain optimal performance.
5. A strategically positioned drain valve at the bottom of the valve body efficiently discharges accumulated impurities within the valve, ensuring smooth operation and prolonging the valve's life.
Guided Gate Structure Diagram
1. When fully open, the gate's guide hole aligns perfectly with the valve body channel, forming a seamless straight pipe section. This alignment allows for the effortless direct purging of media (see above diagram).
2. During the gate's opening or closing journey, the valve seat remains in constant contact with and fits the gate precisely. The soft valve seat smartly scrapes impurities from the gate, making this flat gate valve ideal for handling media with suspended particles and fibers. It also prevents seal surface damage from thermal deformation.
3. The two valve seats are intelligently designed to float, complemented by a soft-hard composite seal for exceptional longevity.
4. In cases of abnormal valve cavity pressure increases, the floating valve seat automatically releases the excessive pressure into the pipeline, ensuring safety and reliability.
5. A drain valve is conveniently located at the valve body's bottom to facilitate the discharge of any accumulated impurities, maintaining valve efficiency.
SNT Machinery (Qingdao) Co., Ltd. stands as a beacon of innovation in the realm of control valves, seamlessly integrating manufacturing, design, sales, and service under one roof. Strategically positioned in Qingdao, Shandong Province, our sprawling 42,000 square meter facility is a testament to our cutting-edge production capabilities. As a distinguished high-tech enterprise, we proudly hold independent intellectual property rights, enriched by world-class management and production expertise. Our dynamic workforce of over 150 includes a robust 15% dedicated to R&D and 30% with advanced degrees or higher. Through the synergy of our adept production management team and pioneering R&D initiatives, we deliver an impressive array of top-tier valves, predominantly serving the petrochemical, oil, and coal chemical industries. Our financial achievements reached a milestone with a sales value nearing 100 billion in 2017.
SNT proudly holds the TS Special Equipment Manufacturing Certificate and ISO 9001 accreditation. Our credibility is further cemented by the net qualification certification from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess is demonstrated through multiple national patents. We specialize in the design and fabrication of a comprehensive range of valves adhering to ANSI, API, DIN, BS, and JIS standards. By blending the strengths of globally acclaimed valves with our unique R&D capabilities, we manufacture diverse valve types including GLOBE, High Pressure Boiler Blow-down Valves, High-Performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and more.
Our extensive valve portfolio showcases V Ball Valves, High Wear-Resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, and beyond. Our driving mechanisms encompass manual, power-driven, pneumatic, and hydraulic operations. We utilize premium materials such as A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. Specifications range from 1/2" to 120", with working pressures from ANSI 150# to 2500#, and operational temperatures between -196ºC and 1100ºC.
With a robust foundation in cutting-edge production technology and a comprehensive quality assurance system, SNT Valves have become integral to industries including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our prestigious clientele comprises industry leaders such as SINOPEC QILU Branch, SINOPEC Qingdao Branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi Branch, PETROCHINA Ningxia Branch, and many more across the nation.
At SNT, the prosperity of our clients is our foremost priority. We are committed to forging a legacy of exceptional quality and a revered brand reputation. Our meticulous quality assurance and after-sales systems fortify our partnerships, ensuring that SNT valves stand as a trusted ally in our customer's success stories, paving the way for mutual prosperity.
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