Basic Info.
Adjusted Form
Regulated Type
Working Type
Straight Trip
Work Temperature
Normal Temperature
Acting Type
Spring Return
Structures
Single-Spring Structure
Diaphragm Covermaterial
Stamped Steel
Override Surface Material
Galvanized and Painted
Actuator Bracket Material
From Cast or Forged Steel
Diaphragm Material
Neoprene Rubber
Push Rod
AISI420 with a Nickel-Plated Surface
Guide Bushing
Aluminum Bronze
Actions
Da(Diresct Action)/Ra(Reverse Action)
Size
D12 D25 D33 D39 D46 D63
Stroke
17 25 34 45 60 76 100 120 150 200
Supply
40psi(0.28MPa)/60psi(0.4MPa)
Action
D12 D25 D33 D39 D46 D63
Direct
200 222 409 580 828 1574
Reverse
180 192 370 519 748 1420
Transport Package
Foam and Carton Box
Product Description
About Pneumatic Diaphragm
The 1-X280 series straight-stroke pneumatic diaphragm actuator is a marvel of engineering excellence, featuring an innovative multi-spring design that offers two versatile configurations: positive action and negative action. This allows for seamless adaptation to your desired fault position, thanks to its reliable spring reset capability. Marrying perfectly with straight-stroke valves, it is tailored for the precision control and fine-tuning of process parameters. Capable of reaching an impressive maximum stroke of 76mm, this high-performance pneumatic actuator is celebrated for its lightweight build, formidable thrust, and straightforward construction, making it an exceptional choice for a variety of applications.
The 1-X250 series straight-stroke pneumatic diaphragm actuator epitomizes advanced design with its single-spring structure. Distinguished from the 1-X280 series, it excels in applications requiring long-stroke control, boasting a maximum stroke of 250mm. In comparison to pneumatic piston actuators, it stands out with superior adjustment precision and a lightweight profile, making it ideal for cutting scenarios. Enhanced with components like a pneumatic valve, speed increaser, and fast discharge valve, it achieves rapid cutting capability, with a minimum response time as swift as 1 second. This dynamic actuator is engineered for excellence and efficiency.
Product Description
| Type | PNEUMATIC DIAPHRAGM LINEAR ACTUATORS |
| Model | 1-X280 | 1-X250 |
| Size | D12 | D25 | D33 | D39 | D46 | D63 | D63 |
| Membrane Diameter(mm) | 218 | 262 | 333 | 395 | 465 | 640 | 640 |
| Active Area(mm2) | 33567 | 48497 | 78343 | 110231 | 152763 | 289382 | 289382 |
| Stroke(mm) | 17 | 17 | 25 | 17 | 25 | 34 | 45 | 17 | 25 | 34 | 45 | 25 | 34 | 45 | 60 | 34 | 45 | 60 | 76 | 100 | 120 | 150 | 200 |
| Handwheel | T | T/S | T/S | T/S | T/S | S | S |
| Supply | 40psi,50psi,60psi (0.28Mpa,0.35Mpa,0.4Mpa) |
| Air Connect | 1/4" NPT | 1/4" NPT | 1/4" NPT | 1/2" NPT | 1/2" NPT | 1" NPT | 1" NPT |
| Orientation Diameter(mm) | Φ55 | Φ60 | Φ60 | Φ76 | Φ76 | Φ95 | Φ128 |
| Max. Output thrust(N) | 2185 | 2880 | 7696 | 12040 | 17353 | 26672 | 28242 |
| Lag | ≤1%FS(With positioner )-GB/T4213-201 |
| Liner | ≤±2%FS(With positioner)-GB/T4213-2013 |
| Air chamber sealing | Pressure reduction value ≤5.0Kpa/5min-GB/T4213-2013 |
| Service life | ≥100000-GB/T4213-2013 |
| Ambient Temperature | Standard -10~+70 High Temperature -40~+100ºC |
| Coating Color | Bule |
| Attachments | Electropneumatic valve positioner ,Pneumatic valve positioner, filter reducing valve, plasticizing relay, solenoid valve, pneu-
matic valve, lock valve, speed controller, limit switch |
| Position transmitter, manual mechanism, maximum adjustable mechanical limit, minimum adjustable mechanical limit |
| Option | Special interface, specified coating, diameter of connection locating hole, extension length of push rod, thread at connection |
Product Parameters
Effective Thrust of Valve Stem
(N/psi) |
| Model | 1-X280 | 1-X250 |
| Action Mode | D12 | D25 | D33 | D39 | D46 | D63 | D63 |
| DA(Direct Action) | 220 | 222 | 409 | 580 | 828 | 1574 | 1569 |
| RA(Reverse Action) | 180 | 192 | 370 | 519 | 748 | 1420 | 1295 |
Actuator Features
Enjoy an extended service life
Crafted with precision, the membrane cover is constructed from stamped steel, meticulously finished with a galvanized and painted surface to combat corrosion effectively. The high-quality paint adheres firmly, resisting peeling over time.
The actuator bracket is expertly built from cast or forged steel, offering a strong and dependable structure you can rely on.
Featuring a diaphragm made from durable neoprene, this actuator excels in resisting aging, chemical exposure, and remains intact under prolonged stress, ensuring sustained performance.
The push rod boasts AISI420 material, enhanced with extrusion and nickel plating, providing an immaculate finish and superior resistance to corrosion.
Aluminum bronze guide bushing ensures excellent guidance and minimal deformation at low temperatures, maintaining airtight sealing of the air chamber.
An A-type sealing ring fortifies the lower connection between the push rod and the bracket, effectively blocking ingress of oil, sand, or dirt.
Application Flexibility
Interchangeability of all positive and reaction parts for versatile application.
Customizable spring installation allows for adjustment according to stroke. The integrally cast aluminum tray offers dual positions-high and low-for convenient setup. Select from 3, 4, or 6 springs to
achieve diverse spring ranges;
Actuators come in various specifications, each with multiple travel springs, accommodating a broad spectrum of valve diameters.
Two handwheel mechanisms available: top-mounted and side-mounted. The side-mounted option can be fully
detached from the actuator, enhancing installation ease.
The actuator-valve connection employs a
pressing plate and sleeve design, facilitating effortless onsite packing replacement.
Options
Adjustable upper travel limit for precise upward motion control.
Adjustable lower travel limit for controlled downward movement.
Top-mounted handwheel mechanism for additional maneuverability.
Side-mounted handwheel mechanism for versatile operation.
Specialized actuators for extreme temperatures: low and high.
Low-temperature actuators suitable for:
- Operating range: - 60 ~70 ºC.
High-temperature actuators suitable for: - Operating range: - 20 ~100 ºC.
Actuator locking device to secure position during maintenance, mirroring fault position scenarios.
Comprehensive options including position transmitter, manual mechanism, maximum/minimum adjustable mechanical limits.
A suite of control circuit accessories: positioner, pressure reducing valve, solenoid valve, limit switch, lock valve, booster, amplifier, pneumatic valve, and more for ultimate control.
Actuator spring ranges (psi)
1-X280 SERIES SIDE HANDWHEEL
Detailed dimensions & mass for the 1-X280 series
Service Life
1. Thediaphragm cover is manufactured from stamped steel with a galvanized and painted finish to deliver robust corrosion resistance. The paint is uniquely formulated for durability, ensuring it does not easily peel. Additionally, the actuator bracket is composed of either cast or forged steel, offering a dependable and sturdy build.
2. The diaphragm construction of our product ensures unmatched durability and resilience.iaphragm is constructed from superior neoprene rubber, which provides remarkable resistance against aging and chemical corrosion while maintaining its impeccable shape under constant pressure.
3. The pushush rod is made of high-grade AISI420, featuring a sleek nickel-plated surface that offers exceptional smoothness and robust corrosion resistance.
4. The guideuide bushing is made from premium aluminum bronze, ensuring excellent guidance and minimal deformation even at lower temperatures, thus maintaining superior air chamber sealing.
5. For the sealingealing, an advanced A-type sealing ring is strategically positioned below the connection of the push rod and bracket to effectively obstruct oil, sand, or dirt infiltration.
Application Flexibility
1. All direct-acting and reverse-acting components are universally to ensure interchangeability, promising effortless adaptability across a multitude of applications.
2. The spring installation position is customizable according to the operational stroke. The integrally cast aluminum tray provides two installation options - high and low - ensuring utmost convenience in installation. Meanwhile, 3, 4, or 6 springs can be strategically configured to cater to various spring ranges, allowing for precise customization.
3. Each actuator specification is equipped with a variety of spring options, accommodating an extensive range of valve sizes, thus enhancing its versatility.
4. The handwheel mechanisms are available in two designs: top-mounted and side-mounted. The side-mounted handwheel, in particular, can be completely detached from the actuator, significantly easing the installation process.
5. The actuator-to-valve connection employs a compression plate and sleeve structure, facilitating not only easy installation but also seamless on-site packing replacement.
Actuator Options
1. Adjustable Upper Stroke Limiter: Precisely limits the upward stroke of the actuator, ensuring operational accuracy.
2. Adjustable Lower Stroke Limiter: Efficiently restricts the downward stroke for optimal performance.
3. Top-Mounted Handwheel Mechanism
4. Side-Mounted Handwheel Mechanism
5. Low and High-Temperature Actuators: Expertly crafted to meet specific environmental conditions, providing unmatched reliability..
6. Low-Temperature Actuators: Engineered to function flawlessly in environments with temperatures ranging from -60°C to 70°C, ensuring performance consistency.
7. High-Temperature Actuators: Perfectly suited for temperatures between -20°C to 100°C, offering robust performance and resilience in extreme conditions.
8. Actuator Locking Device: Ensures that the actuator remains securely locked during maintenance, corresponding directly to its fail-safe position, thus enhancing safety.
9. Remote Venting: In scenarios where natural gas or other hazardous gases are utilized as the actuator's air source, equipping the actuator housing with a strategic venting device is crucial to prevent any gas accumulation, ensuring safety and reliability.
10. Additional Control Circuit Accessories: Elevate your system's precision and reliability with our premium range of control circuit accessories. These components ensure seamless integration and enhanced functionality, perfectly complementing your existing setup.: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster: Discover the ultimate suite of accessories tailored for enhancing pneumatic control systems. Our positioner guarantees precise actuator control, while the pressure regulator maintains optimal flow. The solenoid valve provides quick, efficient switching, and the limit switch ensures safety by monitoring actuator position. Locking valve secures your system's state, preventing unwanted changes, while the booster amplifies signal strength for superior performance.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. emerges as a beacon of industrial excellence, seamlessly integrating the intricate facets of control valve manufacturing, design ingenuity, comprehensive sales, and unparalleled service. Nestled in the heart of Qingdao, Shandong province, the sprawling 42,000m² facility houses state-of-the-art workshops and cutting-edge production equipment. As a recognized high-tech enterprise, SNT boasts independent intellectual property rights complemented by the adoption of sophisticated global management and production practices. With a dynamic workforce exceeding 150 dedicated professionals, including 15% committed R&D specialists and 30% holding graduate or advanced degrees, SNT is propelled by a formidable production management team and pioneering technology research initiatives. Our production line is renowned for crafting premium quality valves, serving the petrochemical, oil, and coal chemical sectors with distinction. The company achieved an impressive sales milestone, nearing 100 billion in 2017.
SNT proudly holds the prestigious TS Special Equipment Manufacturing Certificate and ISO 9001 certification, reflecting our unwavering commitment to quality. Moreover, we have secured the net qualification certificates from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM, alongside numerous national patents for innovative technologies. Our expertise extends to the design and fabrication of an extensive range of valve series, all adhering to ANSI, API, DIN, BS, and JIS standards. By harmonizing the virtues of renowned global valves with our unique R&D capabilities, we offer an array of products including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and T Three-eccentric Center Butterfly Valves.
Our diverse product lineup also encompasses V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves, among others. These products are available with various driving mechanisms such as manual, power-driven, pneumatic, and hydraulic. The main components are crafted from premium materials like A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, ensuring durability and reliability. Specifications range from 1/2" to 120", accommodating working pressures from ANSI 150# to 2500#, and withstanding temperatures from -196ºC to 1100ºC.
Leveraging advanced production technologies and a robust quality assurance system, SNT Valves have earned widespread acclaim across industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele comprises SINOPEC's QILU and Qingdao branches, CNOOC Huizhou Refinery, PETROCHINA Guangxi and Ningxia branches, among others. These partnerships underscore our commitment to delivering exceptional products and services.
At SNT, we prioritize customer profitability, dedicating ourselves to forging a legacy of superior quality and a distinguished brand reputation. Our comprehensive quality assurance and responsive after-sales systems ensure that SNT valves not only meet but exceed customer expectations, fostering a prosperous future through collaborative 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.
