Multi-Spring Pneumatic Diaphragm Actuators Featuring Sturdy Single-Spring Design

• Customization: Available
• Brand: Snt
• Power: Pneumatic
• Model NO.: 1-X280
• Adjusted Form: Regulated Type
• Working Type: Straight Trip
• Pressure: Medium Pressure
• Work Temperature: Normal Temperature
• Acting Type: Spring Return
• Material: Stainless Steel
• Customized: Customized
• Structure: Thin-Film Type
• 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)
• Handwheel: Top or Side
• 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
• Trademark: SNT
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000 Per/Year
• Package Size: 1.07cm * 1.07cm * 1.04cm
• Package Gross Weight: 20.000kg
• Lead Time: 15 days (1 - 50 Pieces) ; To be negotiated ( > 50 Pieces)

Product Description

 

About Pneumatic Diaphragm

 

^{The remarkable 1-X280 series straight-stroke pneumatic diaphragm actuator features an innovative multi-spring structure, available in both positive and negative action forms. This design ensures effortless attainment of the desired valve fault position, thanks to the reliable spring reset mechanism. When paired with a straight-stroke valve, it excels in the precise control and regulation of process parameters. With an impressive maximum stroke of up to 76mm, this high-performance pneumatic actuator boasts a lightweight build, substantial thrust, and a straightforward design, making it an exemplary choice for various applications.
Presenting the advanced 1-X250 series straight-stroke pneumatic diaphragm actuator, which incorporates a robust single-spring structure. Compared to the 1-X280 series, it is optimized for long-stroke control, offering an exceptional maximum stroke of 250mm. When set against pneumatic piston actuators, it stands out with its superior adjustment accuracy and lightweight nature. Versatile in use, even for cutting operations, it comes equipped with a pneumatic valve, speed increaser, and fast discharge valve, ensuring rapid cutting capabilities. The minimum fast cutting time is an impressive 1 second, providing unparalleled 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

 

<sup>Remarkable Durability: Experience exceptional longevity with our actuator, meticulously engineered to withstand the test of time.
Crafted with precision, the membrane cover is constructed from stamped steel and treated with a galvanized and painted surface to combat corrosion, ensuring the paint remains intact and resists flaking.
Rugged Construction: The actuator bracket is available in either cast steel or forged steel, providing a structure that is as firm as it is reliable.
Superior Material: Our diaphragm is constructed from neoprene, known for its excellent resistance against aging, chemical exposure, and its ability to maintain form under continuous stress.
High-Quality Componentry: The push rod, made from AISI420, features a nickel-plated, extruded surface, offering superior finish and corrosion resistance.
Advanced Guidance: The guide bushing, crafted from aluminum bronze, provides exceptional guidance while minimizing deformation at low temperatures, ensuring optimal air chamber sealing.
Efficient Sealing: An A-type sealing ring fortifies the lower connection between the push rod and the bracket, effectively warding off oil, sand, and dirt.

Application Flexibility
Interchangeable Components: All positive and reactive parts are designed for seamless interchangeability, ensuring versatile application.
Customizable Spring Setup: Adapt the spring installation position to suit your needs. The integrally cast aluminum tray offers both high and low installation positions, and the option to incorporate 3, 4, or 6 springs allows for tailored spring ranges.
This adaptability ensures you achieve the desired performance metrics.
Versatile Compatibility: Each actuator specification supports a broad array of travel springs, accommodating a wide range of valve diameters.
Dual Handwheel Options: Choose between top-mounted and side-mounted handwheel mechanisms, with the side-mounted handwheel providing complete detachment from the actuator,
offering unmatched convenience for installation.
Effortless Integration: The actuator-to-valve connection utilizes a pressing plate and sleeve structure,
facilitating easy on-site packing installation and replacement.</sup>

<sup>Options

Adjustable Upper Travel Limit: Precisely control the upward travel of the actuator for enhanced performance.
Adjustable Lower Travel Limit: Effectively manage the downward travel of the actuator to suit your operational needs.
Top-Mounted Handwheel Mechanism: Ergonomic and convenient.
Side-Mounted Handwheel Mechanism: Space-saving and efficient.
Temperature-Specific Actuators: Designed to perform in varying ambient temperatures, with options for both low and high-temperature environments.
Low-Temperature Actuators Operating Range:
-60 to 70 ºC, built for extreme conditions.
High-Temperature Actuators Operating Range: -20 to 100 ºC, perfect for demanding thermal environments.
Secure Actuator Positioning: A locking device ensures actuators remain in their locked positions during maintenance, aligning with the actuator's fault position.
Precision Control Accessories: Includes a position transmitter, manual mechanism, maximum and minimum adjustable mechanical limits for optimal operation.
Comprehensive Control Circuit Accessories: Tailor your setup with a positioner, pressure reducing valve, solenoid valve, limit switch, lock valve, booster, amplifier, pneumatic valve, and more.</sup>

Actuator Spring Ranges (PSI):

1-X280 Series Side Handwheel: Engineered for efficiency and ease.


1-X280 Series Dimensions & Mass: Compact design, maintaining a balance between size and functionality.




Service Life

1. The diaphragmcover iscrafted fromstamped steel with a durable, galvanized, and painted surface, offering robust corrosion resistance. The paint is formulated to endure and resist peeling, while the actuator bracket made from cast or forged steel ensures a steadfast and trustworthy 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.

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: Suitable for environments with temperatures ranging from -60°C to 70°C.

7. High-Temperature Actuators: Suitable for environments with temperatures ranging from -20°C to 100°C.

8. Actuator Locking Device: Ensures the actuator remains in a locked position during maintenance, which corresponds to the fail-safe position of the actuator.

9. Remote Venting: When natural gas or other hazardous gases are used as the actuator's air source, the actuator housing should be equipped with a venting device to prevent gas accumulation.

10. Additional Control Circuit Accessories: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd. stands as a luminary in the realm of control valve manufacturing, seamlessly integrating design, production, sales, and service into one cohesive operation. With a strong foundation and rapid growth trajectory, SNT proudly calls the vibrant city of Qingdao in Shandong Province its home, spreading across a sprawling 42,000m² of cutting-edge workshops and state-of-the-art production equipment. As an illustrious high-tech enterprise, SNT boasts independent intellectual property rights and draws upon advanced international management practices and production expertise. Our talented team comprises over 150 dedicated professionals, with 15% focused on research and development, and an impressive 30% holding graduate or higher degrees. Fueled by a commitment to quality production management and pioneering technological research, SNT delivers an impressive array of high-quality valves for the petrochemical, oil, and coal chemical sectors. In 2017, our exceptional sales performance reached nearly 100 billion, a testament to our industry leadership.

SNT has proudly earned the prestigious TS special equipment manufacturing certificate and ISO 9001 accreditation, alongside the esteemed net qualification certificates from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our innovative stride is further evidenced by numerous national patents. With the capability to design and produce comprehensive valve series adhering to ANSI, API, DIN, BS, and JIS standards, SNT synthesizes the best of global valve ingenuity with our own groundbreaking R&D efforts. Our expansive manufacturing repertoire 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, to name a few.
Our expertly crafted valve selection 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. We offer diverse driving mechanisms including manual, power-driven, pneumatic, and hydraulic options. The primary materials used for these robust components include A216 WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M etc. Our comprehensive specifications range from 1/2" to 120", accommodating working pressures from ANSI 150# to 2500#, and a broad operating temperature spectrum from -196ºC to 1100ºC.

With a foundation built on advanced production technology management and a rigorous quality assurance system, SNT valves are celebrated for their reliability across key industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our prestigious clientele includes notable names such as SINOPEC's Qilu and Qingdao branches, CNOOC's Huizhou Refinery, PETROCHINA's Guangxi and Ningxia branches, and more. These strategic partnerships underline our commitment to excellence and innovation.

At SNT, we prioritize our customers' success, passionately committing to excellence in quality and brand prestige. Our robust quality assurance and after-sales systems ensure that SNT valves not only meet but exceed customer expectations, forging prosperous partnerships that thrive on mutual success.