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, a cutting-edge innovation in cage guide control valves, crafted with precision for large Cv values and remarkable dynamic stability. Perfectly engineered for a plethora of heavy-duty applications, this series stands out with its pressure-balanced trim capable of handling substantial pressure drops. Elevate your system's performance with the AOC-6843L//D/E series, which surpasses expectations by integrating low noise and anti-cavitation solutions through its advanced multi-hole type cages, setting it apart from the standard cages used in the original AOC-6843 series. Ingeniously designed for seamless interchangeability, all components except the multi-hole cage can be effortlessly swapped with those from the AOC-6843 series. For unparalleled performance in extreme fluid conditions beyond the scope of this series, the SNT LIMIPHON control type is your ultimate choice.
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, Bonnet Disc Spring Gasket, and Additional Valve Body & Bonnet Gasket Valve Rating CV Trip Reference Table
Valve Body Dimensions and WeightThe specific size can be customized according to demand.
Valve Weight
Above valve cover weight is standard. For high temperatures, please contact us for tailored solutions.
About Control Valves
SNT Machinery (Qingdao) Co., Ltd.
With over two decades of pioneering excellence, SNT Machinery (Qingdao) Co., Ltd. has been at the forefront of straight-through control valve innovation. Renowned for unparalleled precision, consistent performance, and unwavering quality, our diverse product lines are expertly crafted to meet the intricate demands of varying pressures, temperatures, and physicochemical properties. These exceptional valves have found their vital place across industries, including petroleum, chemicals, light industries, pharmaceuticals, paper-making, metallurgy, and power stations, playing a pivotal role in modern automatic industrial instrumentation systems. In recent years, SNT VALVE has proudly garnered national and provincial accolades, progressively replacing foreign imports in key service lines with our superior homegrown solutions.
Unmatched Precision in Control
Utilizing advanced CFD hydrodynamics software, the valve trim design achieves exceptional precision. Through comprehensive analysis, calculation, and rigorous testing, we ensure that the flow characteristics strictly adhere to the esteemed IEC 60534 standard.
Proprietary Core Control Technology
Our mastery in handling high-pressure drop control technology caters to a variety of service line demands. Enhanced performance and reliability are achieved through the expert hardening treatment of key components. Furthermore, our robust and secure internal
and external sealing designs comply with the stringent TA-Luft/ISO 15848 standards, ensuring exceptional integrity.
Comprehensive Specifications
Our extensive product range encompasses high, medium, and low-pressure series valves, alongside specialized valves for particular applications. Outstanding Versatility
Our design supports the seamless interchangeability of valve trims, allowing adaptation to diverse service line requirements.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. stands as a beacon of excellence in the realm of control valve production, seamlessly integrating manufacturing, design, sales, and service into a cohesive powerhouse. Our company, strategically nestled in the vibrant city of Qingdao, Shandong province, occupies an expansive 42,000m² estate, where cutting-edge production facilities and modern workshops flourish. As a high-tech enterprise distinguished by its independent intellectual property rights and the infusion of advanced global management and production techniques, SNT Machinery boasts a dynamic workforce exceeding 150, with a robust 15% comprising R&D specialists, and 30% being esteemed graduates. Our unwavering commitment to high-quality production management and relentless innovation fuels the creation of premium valves for the petrochemical, oil, and coal chemical sectors, achieving an impressive sales milestone of nearly 100 billion in 2017.
SNT triumphs with the prestigious TS special equipment manufacturing certificate and ISO 9001 accreditation, further cemented by the net qualification certificate from industry giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess is endorsed by numerous national patents. Our valve design and manufacturing span global standards such as ANSI, API, DIN, BS, and JIS. By harnessing the merits of renowned valves worldwide and through groundbreaking R&D, we produce a diverse range of valves including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves. Our ingenuity extends to T Three-eccentric Center Butterfly Valves, V Ball Valves, and more.
Our valves encompass High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. They are designed with versatile driving forms: manual, power-driven, pneumatic, and hydraulic. Constructed with superior materials like A216 WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, these valves boast specifications ranging from 1/2" to 120", withstand working pressures of ANSI 150# to 2500#, and operate within temperatures of -196ºC to 1100ºC.
SNT Valves, revered for their superior quality and technological innovation, are integral to industries such as petrochemicals, oil, steel & iron, paper production, and power stations. Our prestigious clientele includes industry titans like SINOPEC QILU, SINOPEC Qingdao, CNOOC Huizhou Refinery, PETROCHINA Guangxi, PETROCHINA Ningxia, and SINOPEC Changling, reinforcing our status as a trusted partner in their operational success.
Placing our customers' success at the forefront, SNT is unwavering in its dedication to forging a legacy of impeccable quality and esteemed brand reputation. Our comprehensive quality assurance and after-sales service systems ensure that SNT valves are synonymous with excellence, as we collaborate with our clients to cultivate mutual 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.