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 ingeniously designed with a remarkable multi-spring structure, available in both positive and negative action forms. This innovative design effortlessly achieves the desired fault position of the valve, thanks to its reliable spring reset mechanism. When paired with the straight-stroke valve, it excels in the precise control and adjustment of process parameters. With an impressive maximum stroke of 76mm, this high-performance pneumatic actuator is characterized by its lightweight nature, robust thrust capacity, and straightforward construction, making it an ideal choice for demanding applications.
The 1-X250 series straight-stroke pneumatic diaphragm actuator features an advanced single-spring structure. Specifically crafted for long-stroke control, it boasts a maximum stroke of 250mm. Compared to pneumatic piston actuators, it offers superior adjustment precision and a lightweight profile, making it suitable for cutting applications. Equipped with a pneumatic valve, speed increaser, and fast discharge valve, it ensures rapid cutting capabilities, achieving a minimum fast cutting time of just 1 second. This actuator is the perfect blend of efficiency and reliability for precise operational needs.
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 a Long Service Life
Crafted with precision, the membrane cover is composed of stamped steel, elegantly finished with galvanized and painted surfaces for superior corrosion prevention. This exquisite paintwork ensures resilience, maintaining its pristine appearance over time.
Built to last, the actuator bracket is forged or cast from premium steel, offering a structure that's both robust and unwaveringly reliable.
The diaphragm, made from high-grade neoprene, boasts exceptional resistance to aging and chemical damage, and adeptly withstands continuous stress without deforming.
The push rod is expertly constructed from AISI420 material, with an extruded and nickel-plated surface that offers an exquisite finish alongside remarkable corrosion resistance.
Fashioned from aluminum bronze, the guide bushing ensures superior guidance with minimal deformation even at low temperatures, maintaining impeccable air chamber sealing.
An A-type sealing ring secures the lower connection between the push rod and bracket, effectively guarding against oil, sand, or dirt intrusion.
Experience Unmatched Application Flexibility
All positive and negative reaction components are effortlessly interchangeable, offering enhanced adaptability.
The spring installation position is adjustable in alignment with the stroke. The integrally cast aluminum tray features dual installation positions, high and low, to facilitate ease of setup. Additionally, you have the option to choose installations of 3, 4, or 6 springs to
achieve varied spring ranges tailored to your specific requirements.
Each actuator specification presents a diverse selection of travel springs, making them versatile for a wide array of valve diameters.
Choose from two innovative hand wheel mechanisms: the top-mounted handwheel and the unique side-mounted handwheel, which can be
easily detached from the actuator, simplifying
installation. The seamless connection between the actuator and valve employs
a pressing plate and sleeve structure, streamlining onsite packing replacements.
Comprehensive Options Suite
Adjustable Upper Travel Limit: Perfect for limiting actuator travel in the upward direction.
Adjustable Lower Travel Limit: Ideal for downward actuator travel restrictions.
Top-mounted Handwheel Mechanism available for enhanced control.
Side-mounted Handwheel Mechanism offers versatile handling options.
Specialized Low and High-Temperature Actuators: Designed for diverse ambient conditions.
Low-Temperature Actuators Operating Range:
-60 to 70 ºC, providing reliable performance in extreme conditions.
High-Temperature Actuators Operating Range: -20 to 100 ºC, suitable for hotter environments.
Secure your system with the Actuator Locking Device, ensuring it remains in the locked position during maintenance, mirroring the actuator's fault position.
Includes Position Transmitter, Manual Mechanism, Maximum Adjustable Mechanical Limit, Minimum Adjustable Mechanical Limit for precision control.
Additional Accessories for Control Circuit: Positioner, Pressure Reducing Valve, Solenoid Valve, Limit Switch, Lock Valve, Booster, Amplifier, Pneumatic Valve, and more, tailored for comprehensive functionality.
Varied Actuator Spring Ranges (psi)
1-X280 SERIES SIDE HANDWHEEL offers effortless operation.
1-X280 series dimensions & mass, designed for optimal integration.
Extended Service Life
1. The diaphragmcover is craftedfrom stamped steel and features agalvanized and painted surface, embodying durability and corrosion resistance. The paint is designed to remain flawless and intact. The actuator bracket, made from cast or forged steel, ensures a structure that is both dependable and sturdy.
2. The diaphragm is crafted with precision, utilizing neoprene rubber which is renowned for its outstanding ability to resist aging and chemical corrosion, while maintaining its form even under continuous pressure.iaphragm is constructed from neoprene rubber, offering excellent resistance to aging, chemical corrosion, and maintaining its shape under continuous stress.
3. The pusher rod is expertly manufactured from AISI420 stainless steel, enhanced with a nickel-plated surface. This ensures a high degree of smoothness and commendable resistance to corrosion, making it a reliable component.ush rod is made of AISI420 with a nickel-plated surface, providing high smoothness and corrosion resistance.
4. The guide bushing is composed of robust aluminum bronze, ensuring excellent guidance and minimal deformation, even at low temperatures, which is crucial for maintaining optimal air chamber sealing.uide bushing is made from aluminum bronze, ensuring good guidance and minimal deformation at low temperatures, which maintains good air chamber sealing.
5. For the sealing, an A-type sealing ring is strategically positioned below the connection point of the push rod and bracket. This effectively prevents infiltration of oil, sand, or dirt, ensuring the integrity and performance of the actuator.ealing, an A-type sealing ring is used below the connection point of the push rod and bracket to prevent oil, sand, or dirt from penetrating.
Application Flexibility: The design supports both direct-acting and reverse-acting configurations with universal parts, ensuring seamless interchangeability for varied operational needs.
1. All direct-acting and reverse-acting parts are universal to ensure interchangeability.
2. The spring installation position is adaptable to the stroke requirements. The integrally cast aluminum tray is ingeniously designed with dual installation positions - high and low, facilitating effortless installation. Meanwhile, 3, 4, or 6 springs can be configured to achieve different spring ranges.
3. Each actuator specification is compatible with diverse spring options, offering versatility to suit a wide array of valve sizes and operational conditions.
4. Handwheel mechanisms are available in two configurations: top-mounted and side-mounted. The side-mounted version offers the unique advantage of complete detachment, allowing for straightforward installation.
5. The connection system between the actuator and the valve incorporates a compression plate and sleeve structure, streamlining installation and enabling easy onsite packing replacement.
Actuator Options: SNT Machinery offers an array of configurations to tailor to specific needs, ensuring optimal performance in any setting.
1. Adjustable Upper Stroke Limiter: Precisely controls the actuator's upward stroke, ensuring consistent performance.
2. Adjustable Lower Stroke Limiter: Provides precise control over the downward stroke of the actuator, enhancing operational precision.
3. Top-Mounted Handwheel Mechanism: Allows for manual operation and adjustments, providing greater control.
4. Side-Mounted Handwheel Mechanism: Offers flexibility and ease of access for manual adjustments.
5. Low and High-Temperature Actuators: Engineered to perform flawlessly under challenging environmental conditions.: Designed for specific environmental conditions.
6. Low-Temperature Actuators: Ideal for extreme cold environments, effective from -60°C to 70°C, securing operational reliability. Suitable for environments with temperatures ranging from -60°C to 70°C.
7. High-Temperature Actuators: Perfect for hotter conditions, thriving within -20°C to 100°C, ensuring dependable performance.
8. Actuator Locking Device: Provides safety by keeping the actuator securely locked during maintenance, aligning with the fail-safe position.: Ensures the actuator remains in a locked position during maintenance, which corresponds to the fail-safe position of the actuator.
9. Remote Venting: An essential feature when using natural gas or hazardous gases, equipped with a venting device to avert dangerous gas accumulation, promoting safety and efficiency.
10. Additional Control Circuit Accessories: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. is a distinguished producer of control valves, seamlessly integrating manufacturing, design, sales, and service into a cohesive unit. With a strategic location in the vibrant city of Qingdao, Shandong Province, our expansive facility spans 42,000 square meters and is outfitted with state-of-the-art workshops and cutting-edge production equipment. As a recognized high-tech enterprise, we proudly hold independent intellectual property rights and incorporate advanced management and production techniques. Currently, our talented workforce exceeds 150, with 15% dedicated R&D specialists and 30% holding graduate or higher degrees. Driven by a commitment to exceptional production management and pioneering technology, we deliver premium quality valves extensively utilized in the petrochemical, oil, and coal chemical sectors, achieving an impressive sales value close to 100 billion in 2017.
SNT has proudly attained the TS Special Equipment Manufacturing Certificate and ISO 9001 certification and possesses the network qualification certificate from esteemed entities like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our innovation is further exemplified by securing numerous National Patents across various technologies. With the ability to design and manufacture an extensive range of valves compliant with ANSI, API, DIN, BS, and JIS standards, we combine global valve designs with our independent R&D prowess. Our comprehensive product line includes 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.
Our diverse valve collection 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 encompass manual operation, power-driven, pneumatic, and hydraulic drives. We utilize premium materials like A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M for key components. Specifications range from 1/2" to 120", with working pressures of ANSI 150# to 2500# and operating temperatures spanning -196ºC to 1100ºC.
Leveraging sophisticated production technology management and a robust quality assurance system, SNT valves are extensively deployed across petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele includes renowned organizations such as SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and many others.
At SNT, we prioritize our users' profitability, dedicating ourselves to establishing superior quality and a reputable brand. Our impeccable quality assurance and comprehensive after-sales systems ensure that SNT valves collaborate harmoniously with our clients, fostering mutual growth 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.
