Multi-Spring Pneumatic Diaphragm Actuators with Enhanced Override Surface

• 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 1-X280 series straight-stroke pneumatic diaphragm actuator is engineered with an innovative multi-spring structure, available in both positive and negative action configurations. This cutting-edge design effortlessly achieves the desired fail-safe position of the valve, thanks to the reliable spring reset mechanism. Seamlessly integrated with straight-stroke valves, it excels in the precision control and regulation of vital process parameters. Boasting a maximum stroke of 76mm, this high-performance actuator is distinguished by its lightweight design, substantial thrust, straightforward construction, and other remarkable features.
The 1-X250 series straight-stroke pneumatic diaphragm actuator is crafted with a single-spring structure, offering distinct advantages over the 1-X280 series for long-stroke applications, with a remarkable maximum stroke of 250mm. It stands out against traditional pneumatic piston actuators with its exceptional precision in adjustment and lightweight nature, making it ideal for cutting-edge applications. Equipped with a pneumatic valve, a speed increaser, and a fast discharge valve, this actuator enables rapid cutting capabilities, achieving minimum cutting times as swift as 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

 

<sup>Long Service Life: Experience unmatched durability with our actuators, designed for extended performance.
The membrane cover, crafted from stamped steel, boasts a surface treated with galvanization and paint to ward off corrosion. The paint adheres robustly, resisting wear over time.
Constructed from either cast or forged steel, the actuator bracket promises unbeatable strength and reliability.
Our diaphragm, expertly made from neoprene, excels in resisting aging, chemical harm, and deformation, even under continuous stress.
Precision-engineered, the push rod utilizes AISI420 material, enhanced with an extruded, nickel-plated surface for exceptional finish and resistance to corrosion.
Crafted from aluminum bronze, the guide bushing provides superior guidance and minimal deformation in low temperatures, ensuring a perfect seal within the air chamber.
A secure A-type sealing ring fortifies the connection between the push rod and the bracket, effectively blocking oil, sand, and dirt infiltration.

Application Flexibility: Adaptability is key with components designed for quick interchange.
Interchangeability of all positive and reaction parts offers seamless adaptability.
With adjustable spring positions tailored to stroke length, our integrally cast aluminum tray offers high and low installation points, plus the flexibility to accommodate 3, 4, or 6 springs.
Achieve varied spring ranges effortlessly.
Choose from a spectrum of travel springs across actuator specifications, catering to diverse valve diameters.
Handwheel mechanisms are available in top-mounted and side-mounted varieties. The side-mounted option detaches completely for ease of use.
Convenience is key with our design.
Easy installation is ensured with the actuator-valve connection using a
pressing plate and sleeve structure, simplifying on-site packing replacement.</sup>

<sup>Options: Tailor your experience with a variety of customizable features.

Adjustable Upper Travel Limit: Control the actuator's upward travel precisely.
Adjustable Lower Travel Limit: Dictate the downward travel boundaries of the actuator.
Top-Mounted Handwheel Mechanism: A practical addition for enhanced control.
Side-Mounted Handwheel Mechanism: Offering versatility and ease of use.
Specialized Actuators for Extreme Temperatures: Tailored to thrive in specific environmental conditions.
Low-Temperature Actuators: Optimized for operating at temperatures between
-60°C and 70°C.
High-Temperature Actuators: Functioning perfectly within -20°C to 100°C.
Actuator Locking Device: Ensures the actuator maintains its position during maintenance, mirroring the fault position.
Enhanced Components: Includes position transmitters, manual mechanisms, and fully adjustable mechanical limits for maximum versatility.
Additional Accessories for Control Circuit: Incorporating positioners, pressure reducing valves, solenoid valves, limit switches, lock valves, boosters, amplifiers, pneumatic valves, and more.</sup>

Actuator Spring Ranges (psi): Offering precision and range.

1-X280 SERIES SIDE HANDWHEEL: Precision engineering meets user-friendly design.


1-X280 Series: Comprehensive overview of dimensions & mass for informed decision-making.




Service Life: Engineered for longevity and continuous reliable performance.

1. The diaphragm coveris crafted from stamped steel, featuring a galvanized and painted surface that effectively resists corrosion. Engineered for durability,this paint is formulated to withstand wear and does not peel easily. The actuator bracket,crafted from top-grade cast or forged steel, is built to provide unparalleled structural integrity and reliability.

2. The diaphragmdiaphragm is constructedfrom premium neoprene rubber, ensuring exceptional resistance against aging and chemical corrosion, while maintaining its structural integrity and shape even under continuous stress.

3. The pushpushrod rodis meticulously crafted from AISI420 steeland features a nickel-plated surface for impeccable smoothness and superior corrosion resistance.

4. The guideguide bushing bushingis manufactured from high-quality aluminum bronzeto ensure precise guidance and minimal deformation at low temperatures, thereby preserving optimal air chamber sealing.

5. For the sealingseal, an innovative A-type sealing ring is strategically placed belowthe connection point of the pushrod and bracket to effectively prevent infiltration by oil, sand, or dirt.

Application Flexibility

1. All direct-acting and reverse-acting parts are designed to be universally interchangeable easily, ensuring seamlesscompatibility and interchangeability.

2. The spring installation position can be meticulously adjusted according to the stroke requirements. The integrally cast aluminum tray presents two installation options: high and low, streamlining the installation process. Meanwhile, it allows for the configuration of 3, 4, or 6 springs to achieve diverse spring ranges, catering to varying needs.

3. Each specification of the actuator is equipped with a variety of spring options, suiting a broad spectrum of valve sizes.

4. Two types of handwheel mechanisms are available: top-mounted and side-mounted. The side-mounted handwheel can be entirely detached from the actuator, greatly enhancing the ease of installation.

5. The actuator-to-valve connection utilizes a compression plate and sleeve structure, simplifying installation and facilitating easy on-site replacement of packing.

Actuator Options

1. Adjustable Upper Stroke Limiter: Precisely limits the actuator's upward stroke.

2. Adjustable Lower Stroke Limiter: Accurately limits the actuator's downward stroke.

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

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

6. Low-Temperature Actuators: Engineered for environments with temperatures ranging from -60°C to 70°C.

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

8. Actuator Locking Device: Ensures steadfast actuator positioning during maintenance, aligning with the actuator's fail-safe position.

9. Remote Venting: When utilizing natural gas or other hazardous gases as the actuator's air source, it is essential that the actuator housing is equipped with a venting device to prevent any gas accumulation.

10. Additional Control Circuit Accessories Explore a comprehensive range of top-tier control circuit accessories, meticulously designed to enhance the performance and operational efficiency of your systems.: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster Elevate your control systems with our state-of-the-art positioners, precise pressure regulators, reliable solenoid valves, robust limit switches, secure locking valves, and powerful boosters, ensuring superior functionality and reliability.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd. is a distinguished producer of control valves, seamlessly integrating manufacturing, design, sales, and exceptional service under one esteemed roof. With a high starting point and rapid development, SNT is strategically located in the bustling city of Qingdao, Shandong province, sprawling over an impressive 42,000 square meters. Our state-of-the-art facilities are adorned with modern workshops and the latest in production equipment, reflecting our status as a high-tech enterprise boasting independent intellectual property rights and imported advanced management and production expertise. Our dynamic team of over 150 dedicated professionals includes a remarkable 15% of R&D specialists and 30% with graduate or higher degrees. This strong foundation of high-quality production management and pioneering technology research and development empowers us to produce vast quantities of premium valves, pivotal in the petrochemical, oil, and coal chemical industries. Our impressive sales reached nearly 100 billion in 2017.

SNT is proud to have obtained the prestigious TS Special Equipment Manufacturing Certificate and ISO 9001 certification. We have also acquired net qualification certificates from industry giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM, alongside numerous National Patents for our innovative technologies. Our expertise extends to designing and manufacturing a comprehensive range of valves according to ANSI, API, DIN, BS, and JIS standards. By harnessing the strengths of world-renowned valves and our independent R&D, we have mastered the art of creating diverse valves, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves.
For specialized applications, we offer T Three-eccentric Center Butterfly Valves, V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, and more. Our versatile driving mechanisms encompass manual operation, power-driven, pneumatic, and hydraulic options. The main components are crafted from premium materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, ensuring unparalleled durability. With specifications ranging from 1/2" to an impressive 120", working pressures from ANSI 150# to 2500#, and temperatures spanning -196ºC to 1100ºC, our valves meet the most demanding industrial requirements.

Thanks to our cutting-edge production technology management and unwavering quality assurance system, SNT valves have earned a stellar reputation across various industries, including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our prestigious clientele features renowned names like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and many more, who continually trust our expertise and innovation.

At SNT, customer success is at the heart of our mission. We are deeply committed to building a brand synonymous with excellence and esteemed quality. Our impeccable quality assurance and robust after-sales systems ensure that SNT valves forge enduring partnerships with all our valued customers, paving the way for mutual growth and prosperity.