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
The AOC-6843 series represents the pinnacle of our innovative cage guide control valves, boasting a large Cv value and remarkable dynamic stability. This series is expertly engineered for a multitude of heavy-duty applications, featuring pressure-balanced type trim designed to withstand high-pressure drops with ease. The AOC-6843L//D/E series elevates performance by integrating multi-hole type cages, which surpass the standard design, to meet stringent low noise and anti-cavitation demands. All components, excluding the multi-hole cage, are fully interchangeable with standard AOC-6843 series parts, ensuring seamless adaptability. For the most challenging fluid conditions not addressed by this series, we recommend selecting the 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 WeightThe specific size can be elegantly customized to meet your precise demands.
Valve Weight
Above valve cover weight is standard. For high-temperature applications, please contact us for tailored solutions.
About Control Valves
SNT Machinery (Qingdao) Co., Ltd.
With over two decades of expertise, SNT Machinery (Qingdao) Co., Ltd. excels in the development and production of state-of-the-art straight-through control valves. Renowned for their exceptional precision, consistent performance, and uncompromising quality, our diverse product lines cater to the unique demands of varying pressure, temperature, and physicochemical environments. Widely acclaimed across industries such as petroleum, chemicals, pharmaceuticals, paper manufacturing, metallurgy, and power generation, these valves are pivotal to automated industrial instrumentation systems. Recently, our acclaimed SNT VALVE series has earned prestigious national and provincial accolades, steadily replacing imported valves in critical applications.
Experience Unparalleled High Control Precision.
Our valve trims are meticulously designed using advanced CFD hydrodynamics software, ensuring optimal performance through rigorous analysis, calculation, and testing. Their flow characteristics fully comply with the stringent IEC 60534 standards.
Empowered by Proprietary Core Control Technology.
Our sophisticated control technologies adeptly manage high-pressure drops, addressing diverse service line requirements. Enhanced through expert hardening treatments, our key components deliver superior performance and reliability. The robust and secure
designs, both internally and externally sealed, adhere to the stringent TA-Luft/ISO 15848 standards, ensuring optimal functionality and safety.
Comprehensive Range of Specifications.
Our extensive product line covers high, medium, and low-pressure valves, in addition to specialized valves for unique applications, offering unmatched versatility.
These valves feature interchangeable trims, seamlessly adapting to a myriad of service line requirements.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. stands proudly as a distinguished producer of control valves, seamlessly integrating manufacturing, design, sales, and services into one innovative entity. With a foundation of pioneering development, SNT is strategically situated in the bustling city of Qingdao, Shandong province, sprawling over a robust 42,000 square meters. Our facility is equipped with state-of-the-art workshops and cutting-edge production equipment. Recognized as a high-tech enterprise, we possess independent intellectual property rights, buttressed by the incorporation of superior management and production expertise from abroad. Our dynamic team comprises over 150 dedicated professionals, with 15% specializing in research and development, and 30% holding graduate degrees or higher. Harnessing the strengths of a top-tier production management team and groundbreaking technological research, SNT consistently delivers premium valves extensively utilized in petrochemical, oil, and coal chemical sectors. In 2017, our sales soared to an impressive value nearing 100 billion.
SNT proudly holds the TS Special Equipment Manufacturing Certificate and ISO 9001 accreditation. We've also secured net qualification certificates from leading industry giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our commitment to innovation is reflected in numerous national patents across various technologies. SNT is adept at designing and fabricating an extensive range of valves that adhere to stringent international standards such as ANSI, API, DIN, BS, and JIS. By synthesizing the strengths of globally renowned valves with our independent research, we have mastered the craft of producing diverse valve types. Our repertoire includes Globe Valves, High-Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and an array of other precision-engineered solutions.
Our extensive range 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. The driving mechanisms vary, encompassing manual, power-driven, pneumatic, and hydraulic operations. The primary materials for our components include A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M, to name a few. Our specifications range from 1/2" to 120" with working pressures of ANSI 150# to 2500#, and they operate efficiently across a vast temperature span of -196ºC to 1100ºC.
With unparalleled production technology and a robust quality assurance system, SNT Valves have become integral to numerous industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our prestigious clientele includes major industry players like SINOPEC QILU Branch, SINOPEC Qingdao Branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi Branch, PETROCHINA Ningxia Branch, as well as SINOPEC Changling and Jinan branches, among others.
At SNT, we prioritize user profitability, steadfastly committed to building an outstanding quality brand. Our comprehensive quality assurance and after-sales support systems ensure that SNT valves not only meet, but exceed expectations. Together with our valued customers, we strive to create a future of shared prosperity and success.
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.