AOC-9031 Series Single Parallel Sliding Gate Valves, affectionately referred to as flat gate valves, stand as a pivotal variant among control valves within the production lineage. Engineered to perfection, these Single Parallel Sliding Gate Valves boast superior opening and closing capabilities. Revel in their full bore design, which ensures minimal flow resistance, exemplary sealing prowess, and ease of operation. Ideal for the seamless transport of refined oil products, these valves find their niche in the intricate networks of transportation pipelines and storage facilities. Whether employed in the wellhead devices for oil and natural gas extraction or in pipelines managing media laced with suspended particles and fibers, these valves promise unparalleled performance and reliability.
AOC-9032 Series Double Parallel Sliding Gate Valves carve their reputation as an essential category of control valves in the spectrum of production processes. Distinguished by a proprietary metal contact architecture, these valves guarantee steadfast operation coupled with exceptional cut-off efficiency. Their versatility shines through in critical applications such as emergency shut-off valves, vent valves, and large-diameter control valves subjected to high-temperature, high-pressure, or extremely low-temperature environments. The breadth of their application is staggering, spanning from refined oil product pipelines and storage systems to the wellhead apparatus for oil and gas extraction. Furthermore, they are adept at handling pipelines with suspended particles and fibers, independent steam turbine feed systems, and are unmatched in conditions laden with high-temperature and high-pressure challenges.
| 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. Ingeniously engineered without a guide hole, the gate showcases a compact and streamlined structure, offering a valve that is both small in size and light in weight.
2. The versatile gate design comes with options of V-shaped, semi-circular, or pentagonal channels. This grants the valve remarkable regulating capabilities, allowing it to adapt seamlessly to any degree of opening, thereby satisfying the flow needs of pipeline systems with precision (refer to the adjacent diagram).
3. Featuring innovative floating valve seats, paired with a soft-hard composite seal, this design ensures an extended service life. In the event of an abnormal rise in internal cavity pressure, the floating valve seat can proficiently release the excess pressure into the pipeline, maintaining optimal functionality.
4. Strategically positioned grease injection valves at the external seats of the valve body enable swift action during maintenance. Should leakage occur due to seal wear, sealing grease can be efficiently injected to arrest the leakage, thereby preserving the valve's integrity.
5. A strategically placed drain valve at the bottom of the valve body is designed for the effective discharge of accumulated impurities, ensuring the valve remains clean and operates smoothly.
Guided Gate Structure Diagram
1. When fully open, the gate's guide hole seamlessly aligns with the valve body channel, transforming into a straight pipe section. This configuration allows for direct media purging, optimizing flow efficiency (refer to the diagram above).
2. Throughout the gate's opening or closing sequence, the valve seat maintains a constant fit against the gate. The soft valve seat has the remarkable ability to automatically scrape impurities from the gate, making the flat gate valve exceptionally suitable for media containing suspended particles and fibers. It also prevents damage to the seal surface from any thermal deformation of the valve body.
3. The floating valve seats, equipped with a soft-hard composite seal, ensure prolonged service life and unwavering reliability.
4. In scenarios of unexpected cavity pressure escalation, the floating valve seat adeptly releases high pressure into the pipeline, safeguarding the overall system.
5. The inclusion of a drain valve at the base of the valve body facilitates the efficient removal of impurities, ensuring sustained operational excellence.
SNT Machinery (Qingdao) Co., Ltd. stands as a distinguished creator of control valves, seamlessly integrating manufacturing, design, sales, and service into a unified powerhouse. Positioned in the dynamic region of Qingdao, Shandong Province, our expansive 42,000 square meter facility is outfitted with state-of-the-art workshops and cutting-edge production equipment. As a pioneering high-tech enterprise, we boast independent intellectual property rights and have incorporated advanced international management and production expertise. Our diverse team of over 150 skilled workers includes a remarkable 15% dedicated to research and development, with 30% holding graduate-level or higher degrees. Driven by an exceptional production management team and groundbreaking technological advancements, we consistently produce an impressive range of top-quality valves that are indispensable to the petrochemical, oil, and coal chemical sectors. In 2017, our sales reached an astounding valuation nearing 100 billion.
SNT takes pride in holding the TS Special Equipment Manufacturing Certificate alongside the ISO 9001 certification, while also possessing the network qualification certificates of industry titans like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our commitment to innovation is further evidenced by numerous national patents across various technologies. We adeptly design and produce a comprehensive array of valves conforming to global standards such as ANSI, API, DIN, BS, and JIS. By blending the best features from renowned valves worldwide with our own independent research and development, we've mastered the art of manufacturing an extensive selection of valves. Our offerings include GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves, among others.
Our diverse valve portfolio extends to V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. With operation options ranging from manual to power-driven, pneumatic, and hydraulic drives, our valves feature main components crafted from premium materials like A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. We offer specifications from 1/2" to an impressive 120", accommodating working pressures from ANSI 150# to 2500#, and enduring temperatures from -196ºC to 1100ºC.
Capitalizing on sophisticated production technology management and a robust quality assurance system, SNT valves are highly sought after by industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Esteemed clients like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Qingdao Refinery, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Changling branch, and Jinan branch trust in our products.
At SNT, we prioritize our customers' profitability, committing ourselves to crafting exceptional quality and building a reputable brand. Our comprehensive quality assurance and after-sales systems ensure that SNT valves not only meet but exceed expectations, fostering enduring partnerships with our clients and paving the way for shared success and prosperity.
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