Reliable Long Stroke Pneumatic Diaphragm Actuators with Single-Spring Design

 

 

^{The 1-X250 series linear stroke pneumatic diaphragm actuator is a marvel of engineering, featuring an innovative single-spring structure. This series is meticulously crafted for exceptional long-stroke control, boasting an impressive maximum stroke of up to 250mm. In comparison with the 1-X280 series, this design is particularly suited for extended reach and reliability. When set against traditional pneumatic piston actuators, the 1-X250 offers unmatched precision in regulation, wrapped in a remarkably lightweight design. This advanced actuator is a versatile toolthat finds its enhanced functionality especially in cut-off applications. By integrating pneumatic control valves, boosters, and quick exhaust valves, it delivers astonishingly rapid cut-off times, achieving closure in as little as 1 second.}

 

 

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 constructed from neoprene rubber, offering excellent resistance to aging, chemical corrosion, and maintaining its shape under continuous stress.

3. The push rod is made of AISI420 with a nickel-plated surface, providing high smoothness and corrosion resistance.

4. The guide 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 used below the connection point of the push rod and bracket to prevent oil, sand, or dirt from penetrating.

Application Flexibility

1. All direct-acting and reverse-acting parts are universal to ensure interchangeability.

2. The spring installation position can be adjusted according to the stroke. The integrally cast aluminum tray offers two installation positions: high and low, making installation convenient. Meanwhile, 3, 4, or 6 springs can be configured to achieve different spring ranges.

3. Each specification of the actuator comes with various spring options, accommodating a wide range of valve sizes.

4. There are two types of handwheel mechanisms: top-mounted and side-mounted. The side-mounted handwheel, in particular, can be completely detached from the actuator, making installation very convenient.

5. The connection between the actuator and the valve uses a compression plate and sleeve structure, facilitating easy installation and convenient on-site replacement of packing.

1-X250 D63 SIDE HANDWHEEL


1-X250 Series overall dimensions & mass



Actuator Options

1. Adjustable Upper Stroke Limiter: Used to limit the upward stroke of the actuator.

2. Adjustable Lower Stroke Limiter: Used to limit the downward stroke of the actuator.

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

5. Low and High-Temperature Actuators: Designed for specific environmental conditions.

6. Low-Temperature Actuators: Our Reliable Long Stroke Pneumatic Diaphragm Actuators with Single-Spring Design are expertly crafted to thrive in environments where temperatures span the impressive range of -60°C to 70°C, ensuring unyielding performance under extreme conditions.

7. High-Temperature Actuators: Engineered for rugged environments, these actuators excel with temperatures stretching from -20°C to 100°C, providing unmatched reliability in high-heat scenarios.

8. Actuator Locking Device: This device guarantees the actuator remains securely locked in position during essential maintenance, aligning perfectly with the actuator's fail-safe orientation, ensuring safety and stability.

9. Remote Venting: In scenarios where natural gas or other potentially hazardous gases power the actuator, the housing is thoughtfully designed with a venting mechanism to effectively avert any gas accumulation, enhancing the safety and efficiency of operations.

10. Additional Control Circuit Accessories: Featuring an array of sophisticated components such as a positioner, pressure regulator, solenoid valve, limit switch, locking valve, and booster, these accessories elevate the functionality and precision control of the actuator systems.

 









SNT Machinery (Qingdao) Co., Ltd. is a distinguished producer of control valves, seamlessly integrating manufacturing, design, sales, and service into one cohesive powerhouse. Our journey began with a high starting point, leading to rapid development. Situated in the vibrant city of Qingdao, Shandong province, our state-of-the-art facility spans 42,000 square meters, boasting modern workshops and cutting-edge production equipment. As a high-tech enterprise, we pride ourselves on owning independent intellectual property rights and incorporating advanced management and production methodologies. Our dedicated team of over 150 professionals includes 15% R&D specialists and 30% graduates or individuals with higher degrees. With a commitment to excellence in production management and innovative technology research, we consistently deliver high-quality valves for the petrochemical, oil, and coal chemical industries, achieving a sales value near 100 billion in 2017.

SNT has proudly obtained the TS Special Equipment Manufacturing Certificate and ISO 9001 certification, alongside the net qualification certificates from leading industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our dedication to innovation is further evidenced by numerous national patents in various technologies. We are adept at designing and manufacturing a comprehensive range of valves adhering to ANSI, API, DIN, BS, and JIS standards. By merging the advantages of globally renowned valves with our independent research efforts, we produce an array of valves, 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 lineup also features V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, and more. These valves can be operated manually or driven by power, pneumatic, and hydraulic systems. We use premium materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, among others. Specifications range from 1/2" to 120", with working pressures from ANSI 150# to 2500# and temperatures spanning -196ºC to 1100ºC.

Backed by sophisticated production technology management and a robust quality assurance system, SNT Valves are trusted solutions in industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele includes SINOPEC QILU, SINOPEC Qingdao, CNOOC Huizhou Refinery, PETROCHINA Guangxi, PETROCHINA Ningxia, and many more, reaffirming our status as a reliable partner in progress.

At SNT, we prioritize our users' profits, dedicating ourselves to forging an exceptional quality and a respected brand reputation. Our impeccable quality assurance and comprehensive after-sales systems ensure that SNT valves stand hand in hand with all our customers, pioneering a path to shared success and prosperity.