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 exemplifies cutting-edge innovation with its multi-spring design, offering two operational modes: positive and negative action. This actuator effortlessly secures the desired valve fault position through reliable spring reset. Seamlessly integrated with straight-stroke valves, it excels in controlling and fine-tuning process parameters. Delivering a notable maximum stroke of 76mm, this high-performance pneumatic actuator boasts a lightweight build, substantial thrust power, and a straightforward structure, ensuring unmatched efficiency and versatility.
The 1-X250 series straight-stroke pneumatic diaphragm actuator features a refined single-spring design, crafted for extended stroke control with an impressive maximum reach of 250mm. Unlike the pneumatic piston actuator, this series shines with superior adjustment precision and a lightweight profile, making it ideal for applications requiring swift cutting actions. Equipped with advanced components such as a pneumatic valve, speed increaser, and fast discharge valve, it guarantees rapid cutting efficiency, achieving a remarkable minimum cutting time of just 1 second.
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
Extended service life
Crafted with precision, the membrane cover is built from stamped steel, featuring a galvanized and superbly painted finish that ensures outstanding corrosion prevention. This resilient paint maintains its integrity, resisting peeling and wear over time;
Designed for durability, the actuator bracket is engineered from either cast steel or forged steel, providing a structure that is both firm and highly reliable;
The diaphragm is expertly manufactured from neoprene, boasting excellent resistance to aging, chemical attacks, and deformation, even under continuous stress;
The push rod is constructed from premium AISI420, with a surface that is meticulously extruded and nickel-plated to deliver a high-quality finish and superior corrosion resistance;
The guide bushing, made of aluminum bronze, ensures excellent guidance and minimal deformation at low temperatures, maintaining the superior sealing capability of the air chamber;
An A-type sealing ring is utilized at the lower connection between the push rod and the bracket, effectively preventing the infiltration of oil, sand, or dirt.
Versatile application options
All positive and reaction parts are designed to be interchangeable, offering remarkable flexibility.
The spring installation position can be finely adjusted according to the stroke. The integrally cast aluminum tray offers two convenient installation positions, high and low, enhancing ease of setup. You also have the option to install 3, 4, or 6 springs, allowing you to
achieve varying spring ranges;
Each actuator specification includes a diverse array of travel springs, facilitating installation across a wide range of valve diameters;
Two distinct handwheel mechanisms are available: top-mounted and side-mounted. Notably, the side-mounted handwheel can be fully
separated from the actuator, providing exceptional ease during
installation. The connection between the actuator and valve employs a
pressing plate and sleeve structure, simplifying the installation and packing replacement on site.
Customizable Options
Adjustable upper travel limit: designed to restrict the actuator's upward movement.
Adjustable lower travel limit: designed to restrict the actuator's downward movement.
Top-mounted handwheel mechanism for enhanced control.
Side-mounted handwheel mechanism for versatile application.
Specialized actuators for low and high-temperature environments: tailored to specific ambient conditions.
Low-temperature actuators Operating temperature:
- 60 ~70 ºC, optimally engineered for cold conditions.
High-temperature actuators Operating temperature: - 20 ~100 ºC, expertly crafted for warm conditions.
An actuator locking device is included to ensure the actuator remains securely in the locked position during maintenance, mirroring the actuator's fault position.
Position transmitter, manual mechanism, maximum adjustable mechanical limit, minimum adjustable mechanical limit - a suite of tools for precision control.
Additional accessories for seamless control circuit integration: includes a positioner, pressure reducing valve, solenoid valve, limit switch, lock valve, booster, amplifier, and pneumatic valve, among others.
Actuator spring ranges(psi)
1-X280 SERIES SIDE HANDWHEEL
1-X280 series overall dimensions & mass
Service Life
1. The diaphragm cover is made of stamped steel with a robust galvanized and painted surface for exceptional corrosion resistance. The paint is skillfully designed to withstand peeling, maintaining a pristine appearance over time. The actuator bracket, constructed from either cast or forged steel, provides a steadfast and dependable structure.
2. The diaphragm is carefully constructed from premium neoprene rubber, ensuring exceptional durability and resistance against the ravages of time, harsh chemicals, and consistent pressure, while maintaining its form impeccably.
3. The push rod is meticulously made of robust AISI420, enhanced with a sleek nickel-plated surface, providing unparalleled smoothness and superior resistance to corrosion.
4. The guide bushing is manufactured from high-quality aluminum bronze, guaranteeing excellent guidance with minimal deformation, even in low temperatures, thus preserving optimal air chamber sealing.
5. For the sealing, an A-type sealing ring is skillfully used beneath the connection point of the push rod and bracket, effectively preventing any intrusion of oil, sand, or dirt.
Application Flexibility
1. All direct-acting and reverse-acting components are ingeniously universal to ensure seamless interchangeability.
2. The versatile spring installation position is adjustable according to the stroke, with an integrally cast aluminum tray offering dual installation options: high and low, for unparalleled convenience during installation. Meanwhile, a choice of 3, 4, or 6 springs can be meticulously configured to achieve a wide array of spring ranges.
3. Each actuator specification is available with a variety of spring options, skillfully accommodating an extensive range of valve sizes.
4. Ingeniously designed handwheel mechanisms are available in two styles: top-mounted and side-mounted. The side-mounted version offers the added benefit of being completely detachable from the actuator, streamlining the installation process significantly.
5. The connection between the actuator and the valve is elegantly accomplished using a compression plate and sleeve structure, simplifying installation and making on-site packing replacement a breeze.
Actuator Options
1. Adjustable Upper Stroke Limiter: Expertly designed to limit the upward stroke of the actuator for precise operations.
2. Adjustable Lower Stroke Limiter: Tailored for limiting the downward stroke of the actuator with precision.
3. Top-Mounted Handwheel Mechanism
4. Side-Mounted Handwheel Mechanism
5. Low and High-Temperature Actuators: Specifically engineered for distinct environmental conditions.
6. Low-Temperature Actuators: Designed to thrive in environments with temperatures spanning -60°C to 70°C.
7. High-Temperature Actuators: Perfectly suited for environments where temperatures range from -20°C to 100°C, offering robust performance.
8. Actuator Locking Device: Securely ensures the actuator remains locked during maintenance, aligning with the fail-safe position of the actuator for utmost safety.
9. Remote Venting: In scenarios where natural gas or other hazardous gases serve as the actuator's air source, the actuator housing is adeptly fitted with a venting device to prevent any gas accumulation, ensuring operational safety.
10. Additional Control Circuit Accessories: Elevate the functionality and performance of your systems with our comprehensive range of additional control circuit accessories.: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster: Enhance your control systems with our premium selection of accessories, including high-precision positioners, reliable pressure regulators, versatile solenoid valves, dependable limit switches, secure locking valves, and powerful boosters. Each component is meticulously engineered to deliver superior performance and reliability, ensuring your operations run smoothly and efficiently.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. stands as a dynamic leader in the control valve industry, seamlessly integrating manufacturing, design, sales, and service. Positioned at the forefront of innovation, SNT boasts a rapid development trajectory. Our strategic location in Qingdao, Shandong province, spans an impressive 42,000 square meters, featuring state-of-the-art workshops and cutting-edge production facilities. As a high-tech enterprise, we possess independent intellectual property rights complemented by imported advanced management and production know-how. With a dedicated workforce of over 150 professionals, 15% of whom are R&D specialists and 30% hold graduate or higher degrees, we cultivate a culture of excellence. Our proficient production management team and pioneering technology drive us to manufacture high-quality valves extensively utilized in petrochemical, oil, and coal chemical industries. In 2017, we proudly achieved a sales value nearing 100 billion, reflecting our unwavering commitment to quality and innovation.
SNT proudly holds the TS special equipment manufacturing certificate and ISO 9001 accreditation, alongside the net qualification certificates from SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. With numerous national patents, we excel in designing and manufacturing a comprehensive range of valves adhering to ANSI, API, DIN, BS, and JIS standards. By blending global valve excellence with our innovative research, we craft an extensive portfolio, including 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 lineup extends to V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, among others. Our driving mechanisms encompass manual, power-driven, pneumatic, and hydraulic options. We utilize premium materials like A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M, catering to specifications from 1/2" to 120", with working pressures ranging from ANSI 150# to 2500#, and temperatures spanning -196ºC to 1100ºC.
Leveraging advanced production technology management and a stringent quality assurance system, SNT Valves find widespread application across petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele includes SINOPEC QILU, SINOPEC Qingdao, CNOOC Huizhou, PETROCHINA Guangxi, PETROCHINA Ningxia, and SINOPEC Changling and Jinan branches, among others.
Our ethos prioritizes user profits, dedicating ourselves to establishing an exceptional quality and reputable brand. Our comprehensive quality assurance and robust after-sales systems ensure that SNT valves foster enduring partnerships with our customers, driving mutual prosperity and 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.
