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 our most cutting-edge cage guide control valve, boasting a large Cv value and exceptional dynamic stability. Perfectly engineered for a wide array of heavy-duty applications, this series excels in demanding environments. Its hallmark feature is the pressure balanced type trim, expertly crafted for managing high-pressure drops. The AOC-6843L//D/E series elevates performance by offering control valves that are specifically designed to meet rigorous low noise and anti-cavitation standards. This is accomplished through the innovative use of multi-hole type cages, surpassing the performance of traditional standard cages used in the AOC-6843 series cage guided control valves. Notably, all components, except the multi-hole cage, are seamlessly interchangeable with those in the AOC-6843 series. For extreme fluid conditions that this series cannot address, we recommend selecting the esteemed SNT LIMIPHON control type, ensuring superior performance and reliability.
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 according to demand.
Valve Weight
The valve cover weight specified above is standard. For high-temperature applications, kindly contact us.
About Control Valves
SNT Machinery (Qingdao) Co., Ltd.
With over two decades of expertise, SNT Machinery (Qingdao) Co., Ltd. has perfected the art of crafting straight-through control valves. Renowned for their precision and unwavering performance, these valves have redefined reliability in various industrial settings. Tailored to meet specific demands based on pressure, temperature, and physicochemical properties, this versatile series finds its application across a spectrum of industries including petroleum, chemicals, light industries, pharmaceuticals, paper production, metallurgy, and power stations. Distinguished as a vital component within automatic industrial instrumentation systems, SNT VALVE has garnered prestigious national and provincial accolades. With superior design and quality, these valves are gradually replacing imported alternatives in crucial service lines.
Unmatched Precision in Control for Peak Performance
Our valve trim design leverages advanced CFD hydrodynamics software, ensuring precision through meticulous analysis, calculation, and testing. Adhering to the stringent IEC 60534 standard, the flow characteristics of our valves are unmatched.
Innovative Core Control Technology at Your Service
Our cutting-edge technology tackles high-pressure drops, accommodating diverse service line needs. Key components undergo specialized hardening treatments, enhancing product performance and reliability. The robust design ensures enduring dependability.
Moreover, our sealing solutions both inside and out comply with TA-Luft/ISO 15848 standards, guaranteeing exceptional integrity.
Comprehensive Range of Specifications for Every Need
Our product lineup encompasses valves for high, medium, and low-pressure applications, along with specialized purpose valves. This high adaptability allows for seamless valve trim replacements across different service lines.
Ensuring unmatched versatility to meet the evolving demands of various industries.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. stands as a premier producer of control valves, seamlessly integrating manufacturing, design, sales, and service into one cohesive entity. With a visionary approach and rapid development trajectory, SNT is strategically situated in Qingdao, Shandong province, sprawling over an impressive 42,000 square meters. Our state-of-the-art facilities boast cutting-edge workshops and production equipment, reflecting our status as a high-tech enterprise with proprietary intellectual property rights and sophisticated management and production methodologies imported from global leaders. Our team comprises over 150 dedicated professionals, with 15% specializing in research and development, and 30% holding graduate or higher degrees. Anchored by a high-caliber production management team and a relentless pursuit of technological innovation, we consistently deliver high-quality valves tailored for the petrochemical, oil, and coal chemical sectors. In 2017, our sales soared to nearly 100 billion.
SNT has proudly attained the TS Special Equipment Manufacturing Certificate and ISO 9001 accreditation, further complemented by net qualification endorsements from industry giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our commitment to technological excellence is evidenced by numerous national patents. We excel in designing and manufacturing a comprehensive range of valves, adhering to the stringent standards of ANSI, API, DIN, BS, and JIS. By amalgamating the finest features of globally renowned valves with our pioneering research and development, we now offer an extensive array of valves, including Globe Valves, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves, among others.
Our product lineup extends to V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. These are available with diverse driving mechanisms such as manual, power-driven, pneumatic, and hydraulic options. We utilize premium materials, including A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M, ensuring unmatched durability and performance. Our specifications range from 1/2" to 120", suitable for pressures ANSI 150# to 2500#, and operational temperatures from -196ºC to 1100ºC.
With our advanced production technology and robust quality assurance systems, SNT Valves are extensively deployed across industries like petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele includes SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Qingdao Refinery, and many others.
At SNT, our commitment is to prioritize the profitability of our users, dedicating our efforts to crafting exceptional quality and a distinguished brand. Our impeccable quality assurance and comprehensive after-sales support systems ensure that SNT valves not only meet but exceed customer expectations, fostering a collaborative path to mutual 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.