Multi-Spring Pneumatic Diaphragm Actuators with Advanced Single-Spring Mechanism

• 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 groundbreaking 1-X280 series straight-stroke pneumatic diaphragm actuator features an innovative multi-spring structure, available in both positive and negative action configurations. This flexibility ensures easy realization of the valve's desired fault position, thanks to the reliable spring reset mechanism. Seamlessly integrated with a straight-stroke valve, this actuator excels in the precise control and adjustment of process parameters. Boasting an impressive maximum stroke of 76mm, it is a high-performance solution characterized by its lightweight design, substantial thrust capacity, and straightforward architecture, making it the go-to choice for efficiency and reliability.
The cutting-edge 1-X250 series straight-stroke pneumatic diaphragm actuator is engineered with a state-of-the-art single-spring structure. Tailored for long-stroke control needs, it achieves a remarkable maximum stroke of 250mm. Offering superior adjustment accuracy and lightweight design compared to traditional pneumatic piston actuators, it is ideal for applications requiring precision, including cutting operations. Equipped with a pneumatic valve, a speed increaser, and a rapid discharge valve, it guarantees swift cutting capabilities, with a minimum cutting time as fast as 1 second, revolutionizing operational 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>Experience unparalleled durability and longevity with our actuators!
Crafted from premium stamped steel, our diaphragm cover boasts a galvanized and painted finish, delivering superior corrosion resistance and a steadfast paint coat that stands the test of time.
Constructed from high-quality cast or forged steel, the actuator bracket offers a firm and dependable structure, ensuring reliability at every turn.
Our diaphragm, made of neoprene, showcases exceptional resilience against aging, chemical aggression, and maintains its shape even under constant stress.
The push rod, made from AISI420, is extruded and nickel-plated, offering an impeccable finish and outstanding resistance to corrosion.
The guide bushing is built from aluminum bronze, providing excellent guidance and minimal deformation at low temperatures to ensure optimal air chamber sealing.
An A-type sealing ring securely seals the lower connection between the push rod and the bracket, effectively blocking oil, sand, and dirt infiltration.

Application Flexibility
All components, whether positive or reactive, are designed for seamless interchangeability.
With adjustable spring installation positions, the integrally cast aluminum tray allows for both high and low setups, simplifying installation. Choose from configurations of 3, 4, or 6 springs to
fine-tune your spring ranges to perfection.
Each actuator specification offers a variety of travel springs suitable for a wide array of valve diameters.
Choose between two types of hand wheel mechanisms: a top-mounted handwheel that is always accessible, or a side-mounted handwheel that can
be entirely detached from the actuator, enhancing
installation convenience. The actuator-to-valve connection employs
a pressing plate and sleeve design, facilitating easy on-site packing replacement.</sup>

<sup>Options

Adjustable Upper Travel Limit: Precisely control the actuator's upward travel limit.
Adjustable Lower Travel Limit: Accurately set the downward travel constraints of the actuator.
Top-mounted handwheel mechanism for enhanced accessibility.
Side-mounted handwheel mechanism for added versatility.
Specialized actuators for both low-temperature and high-temperature environments.
Low-temperature actuators: Operating temperature:
- 60 ~70 ºC, tailored for chilly settings.
High-temperature actuators: Operating temperature: - 20 ~100 ºC, ideal for heated conditions.
Actuator Locking Device: Securely locks the actuator in place during maintenance, mimicking the fault position for safety.
Included are position transmitters, manual mechanisms, and both maximum and minimum adjustable mechanical limits.
Complementary control circuit accessories include 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


1-X280 Series: Overall Dimensions & Mass




Service Life

1. Thediaphragm cover is made of premium stamped steel, showcasing a galvanized and painted finish for robust corrosion resistance. This durable paint ensures longevity, with the actuator bracket crafted from cast or forged steel for a strong, trustworthy structure.

2. The diaphragm is expertly engineered and constructed to deliver unmatched longevity and performance.iaphragm is constructed from premium neoprene rubber, offering unparalleled resistance to aging and chemical corrosion, while steadfastly maintaining its form even under continuous stress.

3. The push rod is made of robust AISI420 steel with a lustrous nickel-plated surface, ensuring superior smoothness and exceptional resistance to corrosion.

4. The guide bushing is made from high-quality aluminum bronze, delivering excellent guidance while minimizing deformation at low temperatures, thereby ensuring impeccable air chamber sealing.

5. For the sealing, an A-type sealing ring is meticulously secured below the connection point of the push rod and bracket, effectively preventing the intrusion of oil, sand, or dirt.

Application Flexibility

1. All direct-acting and reverse-acting parts are meticulously designed to be universal to ensure optimal interchangeability.

2. The spring installation position is ingeniously adjustable according to the stroke. The integrally cast aluminum tray boasts two installation positions: high and low, enhancing installation convenience. Meanwhile, 3, 4, or 6 springs can be configured to accommodate different spring ranges, allowing for versatile applications.

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

4. The handwheel mechanisms are available in two distinctive types: top-mounted and side-mounted. Notably, the side-mounted handwheel can be fully detached from the actuator, providing unmatched installation ease.

5. The actuator and valve connection is ingeniously crafted using a compression plate and sleeve structure, facilitating effortless installation and convenient on-site packing replacement.

Actuator Options

1. Adjustable Upper Stroke Limiter: Expertly designed to restrict the upward stroke of the actuator.

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

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

5. Low and High-Temperature Actuators: Meticulously engineered to perform in specific environmental conditions.

6. Low-Temperature Actuators: Ideal for environments with temperatures spanning -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: Ensures the actuator remains securely locked during maintenance, corresponding precisely to the fail-safe position of the actuator.

9. Remote Venting: When employing natural gas or other hazardous gases as the actuator's air source, the actuator housing is equipped with a venting device to preclude harmful gas accumulation.

10. Additional Control Circuit Accessories: Positioner, precision-engineered pressure regulator, high-performance solenoid valve, reliable limit switch, secure locking valve, and efficient booster

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd., a distinguished leader in the realm of control valves, seamlessly integrates manufacturing, design, sales, and service into one cohesive entity. With a strong foundation and rapid development, SNT is strategically situated in the vibrant city of Qingdao, Shandong province, sprawling over a vast area of 42,000m². Our facilities boast state-of-the-art workshops and cutting-edge production equipment. Recognized as a high-tech enterprise, we hold independent intellectual property rights and proudly incorporate globally advanced management and production methodologies. Employing over 150 skilled professionals, with 15% dedicated to R&D and 30% holding graduate or higher degrees, our commitment to excellence is unwavering. Our high-caliber production management team and innovative technology research drive the creation of superior valves, extensively utilized across petrochemical, oil, and coal chemical industries. In 2017, our sales value soared to nearly 100 billion.

SNT proudly holds the TS special equipment manufacturing certificate and ISO 9001 accreditation. Our credentials are further solidified with the net qualification certificates from industry giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our innovative prowess is reflected in our numerous national patents across various technologies. We have the capability to design and manufacture an extensive array of valves adhering to ANSI, API, DIN, BS, and JIS standards. By integrating the strengths of renowned valves worldwide with our own research and development, we have mastered the production of all valve types, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves.
Our extensive valve portfolio features 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 driving options include manual, power-driven, pneumatic, and hydraulic systems. The main components are constructed from premium materials such as A216 WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. Our specifications range from 1/2" to 120", with working pressures of ANSI 150# to 2500#, and operating temperatures spanning -196ºC to 1100ºC.

Thanks to our advanced production technology management and robust quality assurance systems, SNT Valves are extensively employed in industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele includes SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Qingdao Refinery, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and SINOPEC Changling branch, as well as the Jinan branch, amongst others.

Placing our customer's success at the forefront, we are committed to fostering a superior quality and esteemed brand reputation. Our thorough quality assurance and dedicated after-sales support systems ensure that SNT valves build lasting partnerships with our clients, paving the way for mutual prosperity and growth.