Multi-Spring Pneumatic Diaphragm Actuators with Reliable Stamped Steel 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 from SNT Machinery (Qingdao) Co., Ltd. presents an innovative multi-spring structure, available in two configurations: positive action and negative action. This advanced actuator effortlessly achieves the desired fault position of the valve, leveraging the power of spring reset. When paired with a straight-stroke valve, it excels in the precise control and adjustment of critical process parameters. With a maximum stroke capability of 76mm, this high-performance pneumatic actuator is distinguished by its lightweight design, substantial thrust, and straightforward yet robust structure.
Introducing the exceptional 1-X250 series straight-stroke pneumatic diaphragm actuator, which features a sophisticated single-spring structure. Distinguished from the 1-X280 series, it is expertly crafted for long-stroke applications, offering an impressive maximum stroke of 250mm. In comparison to pneumatic piston actuators, it provides superior adjustment precision and reduced weight. Perfectly suited for cutting applications, it can be seamlessly integrated with a pneumatic valve, speed increaser, and fast discharge valve, enabling rapid cutting capabilities with the minimum cutting time impressively reaching 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>Experience an impressive long service life, ensuring your operations run smoothly and efficiently for years.
The membrane cover is expertly crafted from stamped steel and boasts a surface that is galvanized and painted, offering superior corrosion prevention. The paint is durable and resists peeling, maintaining its pristine appearance.
Engineered for excellence, the actuator bracket is available in robust cast steel or forged steel, providing a firm and reliable structure that stands the test of time.
The diaphragm showcases the premium quality of neoprene, renowned for its exceptional resistance to aging and chemical attacks, and its ability to maintain form under continuous stress.
Made from high-grade AISI420, the push rod features an extruded and nickel-plated surface, offering high finish and remarkable corrosion resistance.
The guide bushing, crafted from aluminum bronze, offers excellent guidance with minimal deformation at low temperatures, ensuring an airtight seal for the air chamber.
To prevent any intrusion of oil, sand, or dirt, the connection between the push rod and the bracket is securely sealed with an A-type sealing ring.

Application Flexibility
All positive and reaction parts are thoughtfully designed to be interchangeable, offering versatility and ease of maintenance.
The spring installation position is adaptable according to stroke requirements. The integrally cast aluminum tray features two adjustable installation positions, high and low, simplifying the installation process. Additionally, you have the option to select 3, 4, or 6 springs to
achieve diverse spring ranges, perfectly tailored to your specific needs.
Each actuator specification comes with a range of travel springs, allowing installation across various valve diameters, enhancing compatibility.
Choose from two handwheel mechanism types: top-mounted or side-mounted. Especially noteworthy is the side-mounted handwheel, which can be completely
detached from the actuator, significantly simplifying installation and maintenance processes.
The connection between the actuator and the valve employs a
pressing plate and sleeve structure, facilitating easy installation and on-site packing replacement.</sup>

<sup>Options

Adjustable upper travel limit: Precisely control the actuator's upward travel to suit your specific application needs.
Adjustable lower travel limit: Effectively manage the actuator's downward travel for optimal operation.
Top-mounted handwheel mechanism: A versatile option for various installation setups.
Side-mounted handwheel mechanism: Enjoy the convenience of easy access and operation.
Low-temperature and high-temperature actuators: Specifically designed for challenging ambient conditions.
Low-temperature actuators operate seamlessly within a range of
-60 ~ 70 ºC, ensuring reliable performance in extreme cold environments.
High-temperature actuators function effectively between -20 ~ 100 ºC, making them ideal for high heat applications.
Actuator locking device: Guarantees the actuator remains securely locked during maintenance, matching the actuator's fault position for safety.
Position transmitter, manual mechanism, maximum adjustable mechanical limit, and minimum adjustable mechanical limit options are available.
Enhance control circuits with additional accessories such as positioners, pressure-reducing valves, solenoid valves, limit switches, lock valves, boosters, amplifiers, and pneumatic valves to optimize performance.</sup>

Actuator spring ranges (psi): Precisely calibrated for your specific requirements.

1-X280 SERIES SIDE HANDWHEEL


1-X280 series overall dimensions & mass




Service Life

1. The diaphragmcover isexpertly madeof stamped steel with a galvanized and painted surface for superior corrosion resistance. Designed to last, the paint resists peeling, and the actuator bracket, made from cast or forged steel, provides a robust and reliable structure.

2. The diaphragm is expertly crafted from durable neoprene rubber, acclaimed for its exceptional resistance to aging, impeccable resistance to chemical corrosion, and impressive ability to retain its shape even under persistent stress.iaphragm is constructed from neoprene rubber, offering excellent resistance to aging, chemical corrosion, and maintaining its shape under continuous stress.

3. The pushrodush rod is meticulously fashioned from AISI420 stainless steel and enhanced with a nickel-plated surface, which confers a superior smoothness and robust corrosion resistance.ade of AISI420 with a nickel-plated surface, providing high smoothness and corrosion resistance.

4. The guide bushinguide bushing is made from premium aluminum bronze, expertly ensuring optimal guidance and minimal deformation even at low temperatures, thereby maintaining excellent air chamber sealing.ade from aluminum bronze, ensuring good guidance and minimal deformation at low temperatures, which maintains good air chamber sealing.

5. For the sealing,ealing, an A-type sealing ring is strategically employed at the critical juncture below the connection point of the push rod and bracket, effectively preventing the intrusion of oil, sand, or dirt.n 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 thoughtfully designed to be universal, ensuring seamless interchangeability. to ensure interchangeability.

2. The ingeniously designed spring installation position is adjustable according to the stroke. The integrally cast aluminum tray offers a dual installation option: high and low, streamlining the installation process. Meanwhile, 3, 4, or 6 springs can be configured to tailor varying spring ranges. to achieve different spring ranges.

3. Each actuator specification comes equipped with diverse spring options, accommodating a vast spectrum of valve sizes with ease.

4. Two types of handwheel mechanisms are available: top-mounted and side-mounted. Notably, the side-mounted handwheel can be completely detached from the actuator, facilitating an exceptionally convenient installation.

5. The connection between the actuator and the valve is innovatively designed with a compression plate and sleeve structure, simplifying installation and enabling convenient on-site replacement of packing.

Actuator Options

1. Adjustable Upper Stroke Limiter: Precisely controls the upward stroke of the actuator.

2. Adjustable Lower Stroke Limiter: Effectively controls the downward stroke of the actuator.

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

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

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

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

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

9. Remote Venting: Essential for safety when natural gas or other hazardous gases are utilized as the actuator's air source. The actuator housing should be equipped with a venting device to avert 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 at the forefront of the control valve industry, seamlessly integrating manufacturing, design, sales, and services to deliver exceptional products and solutions. With a foundation of swift development and a commitment to excellence, SNT is strategically located in the vibrant city of Qingdao, Shandong Province, sprawling over an impressive 42,000 square meters. Boasting state-of-the-art workshops and cutting-edge production equipment, we are a high-tech enterprise enriched with independent intellectual property rights and enhanced by advanced international management and production experiences. Our dedicated team of over 150 professionals, including a dynamic R&D team comprising 15% of our workforce, and 30% holding graduate or higher degrees, drive our innovative approach. Leveraging a stellar production management team and groundbreaking technology research, we manufacture high-quality valves extensively utilized in the petrochemical, oil, and coal chemical industries. Our remarkable sales value reached nearly 100 billion in 2017, reinforcing our commitment to quality and customer satisfaction.

Armed with certifications like the TS special equipment manufacturing certificate and ISO 9001, SNT proudly carries the net qualification credentials from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our prowess in innovation has garnered several National Patents, underscoring our dedication to technological advancement. SNT can adeptly design and manufacture a comprehensive range of valves adhering to ANSI, API, DIN, BS, and JIS standards. By synthesizing global valve innovations with our pioneering R&D, we produce an extensive 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 product range expands to V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. These are available with multiple driving forms, including manual, power-driven, pneumatic, and hydraulic drive. Constructed from premium materials such as A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M, our valves cater to specifications ranging from 1/2" to 120", withstanding pressures from ANSI 150# to 2500#, and operational temperatures spanning from -196ºC to 1100ºC.

Built on a foundation of advanced production technology management and a robust quality assurance framework, SNT Valves are renowned for their reliability and performance across multiple sectors, including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele features industry leaders such as SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and many more, reflecting our extensive reach and industry trust.

Prioritizing our users' profitability, SNT is committed to establishing an unparalleled quality standard and a reputable brand. Our comprehensive quality assurance and after-sales service systems ensure that SNT valves consistently exceed expectations. Together with our valued customers, we strive to create shared success and prosperity, building enduring partnerships grounded in trust and excellence.