Introducing the AOC-9031 Series Single Parallel Sliding Gate Valves, a pivotal category of control valves designed for the modern production process. These high-performance valves, also affectionately termed flat gate valves, boast exceptional opening and closing capabilities. With their full bore design and low flow resistance, they promise superior sealing performance coupled with effortless operation. Ideally suited for a range of demanding applications, these valves are perfect for transportation pipelines and storage equipment associated with refined oil products. Additionally, they excel in wellhead devices for oil and natural gas extraction, as well as pipelines that transport media containing suspended particles and fibers.
The AOC-9032 Series Double Parallel Sliding Gate Valves represent another cornerstone in control valve technology. Featuring a distinctive metal contact structure, these valves guarantee dependable operation with an impressively high cut-off performance. A staple in emergency shut-off systems, vent valves, and large-diameter control valves, these are engineered to excel under extreme conditions, including high temperatures, high pressures, and ultra-low temperatures. Their versatility extends to transportation pipelines and storage equipment for refined oils, wellhead devices for oil and natural gas, and pipelines that handle media with suspended particles and fibers. Moreover, they are indispensable in independent steam turbine feed systems and environments with high-temperature, high-pressure particles.
| 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 innovative design features a gate without a guiding hole, which significantly contributes to its sleek and compact structure. Its small size and lightweight nature make it an ideal choice for efficient operation.
2. The gate's versatile design options, including V-shaped, semi-circular, or pentagonal channels, endow the valve with exceptional regulating capabilities. It can adjust seamlessly to any opening degree, thereby meeting diverse flow requirements of various pipeline systems (see the right diagram for more details).
3. Engineered for longevity, the valve boasts two floating seats with a soft-hard composite seal. This ensures a durable service life. Furthermore, should the internal cavity pressure of the valve rise unexpectedly, the floating valve seat automatically releases the excess pressure back into the pipeline, enhancing safety and reliability.
4. To address potential leakages caused by seal pair wear, the valve is equipped with grease injection valves at the external seats of the valve body. By injecting sealing grease, any such leakage can be effectively prevented, maintaining optimal performance.
5. At the bottom of the valve body, a drain valve is strategically placed to efficiently discharge any accumulated impurities within the valve, ensuring smooth operation and maintenance.
Guided Gate Structure Diagram
1. When fully open, the guide hole in this gate masterfully aligns with the valve body channel, creating a seamless straight pipe section. This alignment allows for direct media purging, as illustrated in the above diagram.
2. During the dynamic process of opening or closing, the valve seat remains in continuous contact with the gate. This mechanism enables the soft valve seat to automatically scrape away impurities from the gate. This feature makes the flat gate valve exceptionally suitable for handling media with suspended particles and fibers, simultaneously preventing damage to the seal surface due to thermal deformation of the valve body.
3. Featuring two floating valve seats with a soft-hard composite seal, the valve ensures durability and longevity.
4. In instances where the valve cavity pressure unexpectedly escalates, the floating valve seat is designed to automatically discharge the excessive pressure into the pipeline, safeguarding the system.
5. Positioned at the bottom of the valve body, a drain valve efficiently expels any impurities that accumulate inside the valve, ensuring consistent and reliable performance.
SNT Machinery (Qingdao) Co., Ltd is a pioneering force in the world of control valves, seamlessly integrating manufacturing, designing, sales, and services under one roof. With a strategically advantageous starting point and rapid development, SNT is nestled in the vibrant city of Qingdao, Shandong province, sprawling across an impressive 42,000 square meters. Our facility is outfitted with state-of-the-art workshops and production equipment, positioning us as a high-tech enterprise adorned with independent intellectual property rights and enriched by advanced management and production methodologies from across the globe. Our dedicated workforce of over 150 includes an impressive 15% of R&D specialists and a remarkable 30% holding graduate or higher degrees. Anchored by a robust production management team and a spirit of innovation in technology research and development, we manufacture a colossal volume of premium quality valves that cater to the petrochemical, oil, and coal chemical industries. In 2017, our sales value soared to an astounding nearly 100 billion.
SNT proudly holds the prestigious TS special equipment manufacturing certificate and ISO 9001 certification, having secured the net qualification certificates from industry giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technologies are fortified with numerous National Patents. We are adept at designing and manufacturing an extensive array of valves conforming to ANSI, API, DIN, BS, and JIS standards. By harnessing the strengths of renowned valves worldwide and fueling our independent research and development, we currently produce an impressive variety of valves, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and T Three-eccentric Center Butterfly Valves.
Our expansive product lineup 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. Our driving mechanisms range from manual to power-driven, pneumatic, and hydraulic operations. The materials for key components include A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M, with specifications spanning 1/2"~120", a working pressure range of ANSI 150#~2500#, and a working temperature spectrum of -196ºC to 1100ºC.
With cutting-edge production technology management and a robust quality assurance system, SNT Valves have found their indispensable place across various industries, including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele comprises industry giants like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Qingdao Refinery, and many more, underscoring our commitment and reliability.
We prioritize our customers' profitability, dedicating ourselves to establishing unparalleled quality and a distinguished brand. Our impeccable quality assurance and comprehensive after-sales systems ensure that SNT valves forge enduring partnerships with our clientele, driving mutual success and prosperity.
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