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 features an innovative multi-spring design, available in both positive and negative actions. This allows for seamless fault position adjustment of the valve by leveraging the spring reset mechanism. Integrating perfectly with straight-stroke valves, it excels in the precise control and adjustment of process parameters. Boasting an impressive maximum stroke of 76mm, this high-performance pneumatic actuator is distinguished by its lightweight build, substantial thrust capacity, and uncomplicated structure, making it an ideal choice for various industrial applications.
The 1-X250 series straight-stroke pneumatic diaphragm actuator is engineered with a state-of-the-art single-spring structure. Unlike the 1-X280 series, it specializes in long-stroke control, delivering a maximum stroke reach of 250mm. When compared to the pneumatic piston actuator, it stands out with superior adjustment precision and reduced weight. Additionally, it's perfectly suited for cutting scenarios, paired with components such as a pneumatic valve, speed increaser, and quick exhaust valve to facilitate rapid cutting actions. The actuator achieves remarkable efficiency, with minimum fast cutting times as brief as 1 second, underscoring its role as an indispensable tool in dynamic industrial environments.
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
Long service life
The membrane cover is made of stamped steel, the surface is alvanized+painted for corrosion prevention, and the paint is not easy to fall off;
The actuator bracket is made of cast steel or forged steel,and the structure is firm and reliable;
The diaphragm is made of neoprene, which has the characteristics of good resistance to aging damage, chemical attack and non deformation under continuous stress;
The material of the push rod is AISI420, the surface is extruded and nickelplated, with high finish and corrosionresistance;
The guide bushing is made of aluminum bronze, with good guance and small deformation at low temperature to ensure good sealing of the air chamber;
The lower part of the connection between the push rod and thbrackeis sealed with an Atype sealing ring to prevent the penetrationof oil, sand or dirt.
Application flexibility
All positive and reaction parts are interchangeable.
The spring installation position can be adjusted according to the stroke. The integrally cast aluminum tray has two installation positions, high and low, which are convenient for installation. You can also choose to install 3, 4 and 6 springs to
obtain different spring ranges;
Each specification of actuator has a variety of travel springs, which can be installed with a wide range of valve diameters;
There are two types of hand wheel mechanism: top-mounted handwheel and side-mounted handwheel. Inparticular, the side-mounted handwheel can be completely
separated from the actuator, which is very convenient
to install;The connection between the actuator and the valve adopts t
he pressing plate and sleeve structure, which is easy to install and replace the packing on site.
Options
Adjustable upper travel limit: used to limit the travel of the actuator in the upward direction.
Adjustable lower travel limit: used to limit the travel of the actuator in the downward direction.
Top-mounted handwheel mechanism.
Side-mounted handwheel mechanism.
Low-temperature and high-temperature actuators: used for specific ambient temperature.
Low-temperature actuators Operating temperature:
- 60 ~70 ºC.
High-temperature actuators Operating temperature:- 20 ~100 ºC.
Actuator locking device: ensure that the actuator remains in the locking position during maintenance (the same as the actuator fault position).
Position transmitter, manual mechanism, maximum adjustable mechanical limit, minimum adjustable mechanical limit.
Other accessories are used for control circuit: positioner, pressure reducing valve, solenoid valve, limit switch, lock valve, booster, amplifier, pneumatic valve, etc
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 galvanized and painted surface for corrosion resistance. The paint is designed to be durable and not easily peel off. The actuator bracket is made from cast or forged steel, ensuring a robust and reliable structure.
2. The diaphragm is the heart of our actuator, engineered with precision to deliver unmatched performance and longevity.iaphragm is constructed from premium neoprene rubber, this component boasts outstanding resistance to aging and chemical corrosion, all while maintaining its structural integrity under continuous stress.
3. The pushrod is not just a component; it's a marvel of engineering.ush rod is made of durable AISI420 with a sophisticated nickel-plated finish, ensuring superior smoothness and exceptional resistance to corrosion.
4. The guide bushing is meticulously crafted,uide bushing is made from robust aluminum bronze, ensuring impeccable guidance and minimal deformation even at low temperatures, preserving optimal air chamber sealing.
5. For the sealing, an A-type sealing ring is expertly employedealing, an A-type sealing ring is used strategically below the connection point of the push rod and bracket, effectively preventing the infiltration of oil, sand, or dirt.
Application Flexibility
1. All direct-acting and reverse-acting parts are meticulously to ensure crafted to guarantee seamless interchangeability across applications.
2. The spring installation position is ingeniously adjustable according to the stroke. The integrally cast aluminum tray offers dual installation positions: high and low, streamlining the installation process. Meanwhile, 3, 4, or 6 springs can be meticulously configured to achieve a multitude of spring ranges. to achieve different spring ranges.
3. Each actuator specification provides a variety of spring options, catering to a broad spectrum of valve sizes.
4. Featuring two types of handwheel mechanisms: top-mounted and side-mounted. Notably, the side-mounted handwheel can be completely detached from the actuator, significantly enhancing installation convenience.
5. The connection between the actuator and the valve utilizes a compression plate and sleeve structure, enabling effortless installation and facilitating convenient on-site packing replacement.
Actuator Options
1. Adjustable Upper Stroke Limiter: Expertly designed to limit the upward stroke of the actuator with precision.
2. Adjustable Lower Stroke Limiter: Specifically engineered to limit the downward stroke of the actuator, ensuring controlled operations.
3. Top-Mounted Handwheel Mechanism: A high-standard mechanism offering ease and efficiency.
4. Side-Mounted Handwheel Mechanism: Designed for adaptability and ease of use.
5. Low and High-Temperature Actuators: Carefully crafted to perform in specific environmental conditions, offering reliability and durability..
6. Low-Temperature Actuators: Tailored for environments with extreme temperature ranges, suitable for environments with temperatures from, -60°C to 70°C, ensuring optimal function.
7. High-Temperature Actuators: Perfectly suited for environments with temperatures ranging from -20°C to 100°C, maintaining superior performance.
8. Actuator Locking Device: An innovative solution to ensure the actuator remains securely locked during maintenance, aligning with the fail-safe position of the actuator for optimal safety.
9. Remote Venting: When the actuator utilizes natural gas or other hazardous gases as its air source, the housing is equipped with an effective venting device to eliminate gas accumulation, enhancing safety.
10. Additional Control Circuit Accessories: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster: Our comprehensive range of control circuit accessories is designed to perfectly complement the functionality and enhance the performance of your pneumatic systems. Each accessory, including positioners, pressure regulators, solenoid valves, limit switches, locking valves, and boosters, is expertly engineered to ensure seamless integration and reliable operation, making them indispensable tools for optimizing control and efficiency in your applications.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. is a distinguished leader in the realm of control valve manufacturing, seamlessly integrating design, sales, and exceptional services under one unified brand. With a strategic location in Qingdao, Shandong province, our sprawling facility spans 42,000 square meters, housing state-of-the-art workshops and cutting-edge production equipment. As a high-tech enterprise fortified with exclusive intellectual property rights and enriched by advanced global management practices, we excel in our field. Our dynamic team comprises over 150 dedicated professionals, with 15% engaged in innovative R&D and 30% holding advanced degrees. Leveraging a superb production management team and groundbreaking technology, we expertly craft vast quantities of premium valves, serving pivotal sectors such as petrochemical, oil, and coal chemicals. Achieving a remarkable sales value nearing 100 billion in 2017, we are pioneers in delivering excellence.
SNT proudly holds the prestigious TS special equipment manufacturing certificate along with ISO 9001 accreditation. Our esteemed credentials include the net qualification certificates from SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. We boast numerous National Patents across various technologies. Our engineering prowess enables us to design and produce an extensive array of valves adhering to standards such as ANSI, API, DIN, BS, and JIS. By blending the superior traits of renowned global valves with our own innovative research and development, we have mastered the production of diverse valves including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves.
Our comprehensive valve offerings encompass 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. Available driving forms include manual, power-driven, pneumatic, and hydraulic. Key materials utilized in our products include A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, with specifications ranging from 1/2" to 120", working pressures of ANSI 150# to 2500#, and operating temperatures spanning from -196ºC to 1100ºC.
With our advanced production technology, meticulous management, and robust quality assurance system, SNT valves have earned acclaim across industries such as petrochemical, oil, steel, iron, paper manufacturing, and power stations. Our prestigious clientele includes SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and SINOPEC Changling branch, among others.
At SNT, we prioritize our users' success, dedicating ourselves to crafting products of impeccable quality and establishing a revered brand. Our comprehensive quality assurance and exceptional after-sales services ensure that SNT valves collaborate with our valued customers to foster shared 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.
