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 - our latest innovation in cage guide control valves engineered for optimum performance with a large Cv value and exceptional dynamic stability. Designed for a wide array of demanding applications, this series is distinguished by its pressure-balanced trim, ideal for managing high-pressure drops seamlessly. Elevating the standard, the AOC-6843L//D/E series offers advanced control valves equipped with multi-hole type cages, expertly reducing noise and preventing cavitation compared to standard configurations. Moreover, the components, barring the multi-hole cage, are fully interchangeable with those of the AOC-6843 series, ensuring compatibility and convenience. For challenging fluid conditions beyond the scope of this range, we recommend our SNT LIMIPHON control type for unmatched 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 customized to perfectly match your needs and requirements.
Valve Weight
The weight of the valve cover listed above is standard. For high-temperature applications, please contact us for specialized options.
About Control Valves
SNT Machinery (Qingdao) Co., Ltd.
With over two decades of pioneering experience in crafting straight-through control valves, SNT Machinery (Qingdao) Co., Ltd. promises unparalleled precision, unwavering performance, and dependable quality. Our diverse product range has triumphed in a variety of service lines, meticulously categorized based on pressure, temperature, and unique physicochemical characteristics. These highly acclaimed valves are integral to industries such as petroleum, chemicals, light industry, pharmaceuticals, paper-making, metallurgy, and power generation, serving as the backbone of automated industrial instrumentation systems. Celebrated nationally and provincially, SNT VALVE products have proudly begun to replace imported valves in key service lines, underscoring our commitment to excellence.
Precision Control at Its Best
Our valve trim design leverages the cutting-edge CFD hydrodynamics software to ensure meticulous analysis, calculation, and testing, aligning with IEC 60534 standards for superior flow characteristics.
Pioneering Core Control Technology
Our advanced high-pressure drop control technologies are tailored to suit diverse service lines, enhancing performance and reliability through innovative hardening treatments of key components. The robust and reliable sealing design, both internally and externally,
complies with the stringent requirements of TA-Luft and ISO 15848 standards.
Comprehensive Specifications
Our extensive product range encompasses high, medium, and low-pressure series valves, as well as specialized purpose valves. This versatility
enables the seamless replacement of valve trims to match varying service line demands.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd stands as a pioneering producer of control valves, seamlessly integrating manufacturing, design, sales, and top-tier services. With a high-caliber start, SNT has rapidly ascended in the industry. Nestled in the vibrant city of Qingdao, Shandong province, our expansive 42,000 m² facility boasts state-of-the-art workshops and cutting-edge production equipment. As a high-tech enterprise, we pride ourselves on independent intellectual property rights and the infusion of advanced international management and production practices. Our dynamic workforce comprises over 150 dedicated professionals, with R&D specialists constituting 15% and a significant 30% holding graduate or advanced degrees. Fueled by a commitment to excellence and innovation, we produce vast quantities of superior quality valves tailored for petrochemical, oil, and coal chemical industries, achieving a remarkable sales milestone of nearly 100 billion in 2017.
SNT has proudly earned the prestigious TS Special Equipment Manufacturing Certificate and ISO 9001, along with net qualification certifications from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess is further underscored by multiple national patents. We excel in designing and manufacturing a comprehensive range of valves adhering to ANSI, API, DIN, BS, and JIS standards. By blending the best features of world-renowned valves with our unique research and development, we are capable of producing diverse valve types. Our offerings include GLOBE Valves, High-Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and T Three-eccentric Center Butterfly Valves.
Valves such as V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, and more are integral to our catalog. Our driving mechanisms encompass manual, power-driven, pneumatic, and hydraulic options. The main components are crafted from high-grade materials like A216 WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, among others. Specifications range from 1/2" to 120", with a working pressure of ANSI 150# to 2500#, and operational temperatures spanning -196ºC to 1100ºC.
Leveraging cutting-edge production technology management and a robust quality assurance system, SNT Valves have become essential in sectors such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. We proudly serve an esteemed clientele that includes 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, Jinan branch, and many more.
Prioritizing the profitability and satisfaction of our users, we are committed to establishing a brand synonymous with excellence and reliability. Our impeccable quality assurance and comprehensive after-sales systems ensure that SNT valves collaborate harmoniously with our customers, fostering shared success and prosperity.
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.