Basic Info.
Temperature
High Temperature
Certification
GS, CE, ISO9001
Body Size
3/4′′(20A)-24′′(600A)
Plug Size
3/8′′(9A)-24′′(600A)
Fluid Temperature
-196 Degree+566 Degree
Connections
RF, Rtj/Sw, Bw/Butt Weld, Socket Weld
Body Materials
A216wcb/C, A217wc6/9, A352lcb/C, A351 CF8
Trim Materials
SUS316, SUS316+Stellite, SUS316+Tfe
Flow Characteristics
Linear, EQ%, on-off
Leakage(Metal Seat/ Soft Seat)
Cvx0.01% ANSI Class IV. V. Vhs
1-X280
Pneumatic Diaphragm Actuator
1-X250
Pneumatic Diaphragm Actuator
1-X400
Pneumatic Cyilnder Actuator
Product Description
Product Specifications
Body Type | 6843L/XGlobe Type |
Body Size | 3/4''(20A)-24''(600A) |
Plug Size | 3/8''(9A)-24''(600A) |
Body Rating | ANSI 150-2500 |
Fluid Temperature | -196~+566 degree |
Connections | RF,RTJ/ SW, BW Flanged(RF, RTJ), But Weld, Socket Weld. |
Body Materials | A216WCB/C, A217WC6/9, A352 LCB/C, A351CF8M,etc |
Tirm Materials |
Range-ability | 30:1-50:1 |
Flow Characteristics | LINEAR, EQ%, On-Off |
Metal Seat Leakage/Soft Seat Leakage | Cvx0.01% ANSI Class IV. V.VHS ANSI CLASS VI |
ANSI CLASS VI |
Actuator Combination | 1-X280: Pneumatic Diaphragm Actuator 1-X250: Pneumatic Diaphragm Actuator 1-X400: Pneumatic Cyilnder Actuator |
About products
Introducing the AOC-6843 series: the pinnacle of our cage guide control valves, designed for those seeking large Cv values combined with exceptional dynamic stability. Perfectly engineered for an array of heavy-duty applications, this series boasts a pressure-balanced trim tailored specifically for managing high-pressure drops seamlessly. Embrace the innovative AOC-6843L//D/E series, which redefines control valves by surpassing low noise and anti-cavitation challenges, thanks to its advanced multi-hole type cages, replacing the standard ones found in the AOC-6843 series. Ingeniously, every component, aside from the multi-hole cage, is interchangeable with the AOC-6843 series parts, offering remarkable versatility and efficiency. For those extreme fluid conditions that exceed the capabilities of this series, we recommend exploring the superior SNT LIMIPHON control type for unparalleled performance.
STANDARD SPECIFICATION--BODY
Product Description
Type | Unblanced spool and Ball type straight through single seat |
Body Size | NPS3/4''-16''(DN20-DN400) |
Plug Form | Plunger type |
Flow to | Flow to open or Flow to close |
Characterisitics | LINEAR |
Body connections | ANSI, EN, RF, RTJ ANSI B16.25 BW UNI EN 12627 BW |
Bonnet type | Standard: -29degree~230 degree Radiating type:-55 degree~566 degree Cryogenic:-196 degree~55 degree |
Packing | Nylon fiber reinforced type: ≤250ºC-150bar Flexible pure graphite packing combination, No actual temperature limited( oxidation medium the highest temperature is 250ºC) |
Leakage class | conform to IEC60534-4, Unblanced valve spool structure can be the highest VI at the highest temperature. |
Face to Face Dimension
Standard Material Combination
Body and Bonnet Disc Spring Gasket | Additional Valve Body and Bonnet Gasket Valve Rating CV | Trip Reference Table
Valve Body Dimensions and WeightWith utmost precision, the specific size can be elegantly customized to meet your unique demands.
Valve Weight
The above valve cover weight is our standard offering. For high-temperature applications, please do not hesitate to contact us.
About Control Valves
SNT Machinery (Qingdao) Co., Ltd.
With a remarkable legacy spanning over two decades, SNT Machinery (Qingdao) Co., Ltd. has carved its niche in the exploration and manufacture of highly precise straight-through control valves. Celebrated for their stable performance and unwavering quality, these valves have been successfully integrated into diverse service lines. They are meticulously categorized to cater to the nuanced demands of pressure, temperature, and physicochemical characteristics. A cornerstone in industries such as petroleum, chemical, light industry, pharmaceuticals, paper-making, metallurgy, and power stations, our products are vital to the automation of industrial instrumentation systems. In recent years, SNT VALVE has proudly garnered national and provincial accolades, progressively replacing foreign imports in pivotal service lines.
Unparalleled Control Precision
The expertly crafted design of our valve trim harnesses the power of advanced CFD hydrodynamics software. Through meticulous analysis, calculation, and testing, we achieve precise process requirements, ensuring our flow characteristics align with the IEC 60534 standard.
Proprietary Core Control Technology
Our state-of-the-art high-pressure drop control technology is engineered to meet the diverse demands of various service lines. Mastery in hardening treatment of critical components enhances product performance and reliability. Furthermore, our robust and dependable design of both internal and external sealing is in full compliance with TA-Luft/ISO 15848 standards.
and thoroughly meets the stringent requirements of TA-Luft/ISO 15848 standards, ensuring complete reliability.
Comprehensive Specifications
Our product range encompasses high, medium, and low-pressure series valves, as well as valves for specialized applications, offering exceptional versatility.
allowing for the seamless interchangeability of valve trims to suit diverse service lines.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. stands as a pioneering force in the realm of control valve production, seamlessly integrating manufacturing, design, sales, and service into a comprehensive package. With a strategic location in the vibrant city of Qingdao, Shandong province, SNT spans an expansive 42,000 square meters, boasting state-of-the-art facilities and cutting-edge production equipment. As a high-tech enterprise, we possess independent intellectual property rights and have embraced advanced management and production expertise from around the globe. Our dedicated workforce of over 150 professionals includes a talented R&D team comprising 15% of our staff, while graduates and those with higher degrees make up 30%. Fueled by our exceptional production management team and groundbreaking technological innovation, we craft a remarkable array of high-quality valves. These are essential components in the petrochemical, oil, and coal chemical industries. In 2017 alone, our sales soared to nearly 100 billion, reflecting our commitment to excellence.
SNT has proudly secured the TS special equipment manufacturing certificate and ISO 9001 accreditation, along with net qualification certifications from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our national patents in multiple technologies underscore our commitment to innovation. We specialize in designing and manufacturing a comprehensive range of valves that adhere to ANSI, API, DIN, BS, and JIS standards. By integrating the advantages of globally renowned valves with our proprietary research and development, we excel in producing diverse valve types, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves. Our expertise extends to T Three-eccentric Center Butterfly Valves.
Our impressive valve portfolio features V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, and more. We provide versatile driving options, including manual operation, power-driven, pneumatic, and hydraulic drive systems. Constructed with premium materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, our valves meet specifications ranging from 1/2" to 120" in size, withstand working pressures from ANSI 150# to 2500#, and operate within a temperature range of -196ºC to 1100ºC.
Leveraging cutting-edge production technology management and a robust quality assurance system, SNT Valves have become indispensable in industries including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele consists of influential industry players like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and more, all of whom trust in the superior performance and reliability of our products.
At SNT, we prioritize our customers' success, dedicating ourselves to establishing unparalleled quality and a distinguished brand. Our impeccable quality assurance and after-sales service systems ensure that SNT valves form a collaborative partnership with all our clients, fostering mutual prosperity and growth.
Address:
Shiao International 1602, Shinan District, Qingdao, Shandong, China
Business Type:
Manufacturer/Factory
Business Range:
Industrial Equipment & Components
Management System Certification:
ISO 9001, ISO 20000, IATF16949, HSE
Company Introduction:
SNT Machinery(Qingdao)Co., Ltd. Stands as a leading authority in control valve manufacturing. Based in the strategic hub of Qingdao, Shandong province, our sprawling 42, 000m² Facility is outfitted with cutting-edge workshops and advanced production equipment. As a high-tech enterprise, we take pride in owning independent intellectual property rights and implementing cutting-edge international management and production techniques. Our team of over 150 dedicated professionals includes 15% R&D specialists and 30% with graduate degrees or higher. This commitment to excellence and innovation enables us to produce a diverse array of top-tier valves, widely utilized across the petrochemical, oil, and coal chemical industries. In an impressive milestone, our sales neared 100 billion in 2017. SNT proudly holds the prestigious TS special equipment manufacturing certificate and ISO 9001 certification. We are honored to possess net qualification certificates from industry titans including SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess has garnered us multiple national patents. We design and manufacture an extensive range of valves adhering to stringent ANSI, API, DIN, BS, and JIS standards. By merging the finest attributes of world-renowned valves with our innovative R&D, we offer a comprehensive portfolio featuring GLOBE Valves, High-Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and beyond.
Our product lineup showcases V Ball Valves, High Wear-resistant Ball Valves, High-Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves, available in manual, electric, pneumatic, and hydraulic driving forms. We use premium materials such as A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. Our specifications range from 1/2" to 120" in size, accommodating working pressures from ANSI 150# to 2500# and operating temperatures from -196º C to 1100º C. Utilizing our advanced production technology, precise management, and robust quality assurance systems, SNT valves earn trust across diverse industries including petrochemical, oil, steel, iron, paper manufacturing, and power stations. Our esteemed clientele features SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, among others. At SNT, we are devoted to maximizing customer profitability by consistently delivering superior quality and establishing a reputable brand. Our unwavering commitment to comprehensive quality assurance and exemplary after-sales services ensures that SNT valves cultivate enduring partnerships with our clients, driving mutual success and long-term prosperity.