Multi-Spring Pneumatic Diaphragm Actuators with Enhanced Single-Spring Structure

• 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 a marvel of engineering that utilizes an advanced multi-spring structure. It comes in two dynamic configurations: positive action and negative action. This design flexibility ensures the seamless achievement of the desired fail-safe valve position through the reliable spring reset mechanism. Harmoniously paired with a straight-stroke valve, this actuator is primarily designed to meticulously manage and fine-tune process parameters. Boasting a maximum stroke of up to 76mm, this high-performance pneumatic actuator stands out with its feather-light weight, impressive thrust capacity, and elegantly simple structure-making it an indispensable tool for industries seeking top-tier control solutions.
The 1-X250 series straight-stroke pneumatic diaphragm actuator sets a new standard with its innovative single-spring structure, specially tailored for long-stroke control needs. It features an extraordinary maximum stroke of 250mm, positioning it as an ideal choice for precision-driven applications. In comparison to the pneumatic piston actuator, the 1-X250 series excels with its superior adjustment accuracy and notably lightweight design, enabling its use in cutting-edge applications. Enhanced with a pneumatic valve, a speed increaser, and a fast discharge valve, this actuator is engineered for rapid cutting processes, achieving swift cutting speeds with a minimum time of just 1 second. This makes the 1-X250 series an exceptional choice for industries requiring quick, efficient, and precise operations.}

 

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 extraordinary lifespan with our actuator, meticulously engineered to deliver unwavering performance over extended periods.
Engineered for durability, the membrane cover boasts a construction of stamped steel. Its surface is expertly galvanized and painted, offering exceptional resistance to corrosion while ensuring the paint adheres firmly, creating a lasting defense.
The actuator bracket, crafted from either cast or forged steel, stands as a testament to its robust and reliable structure, ready to meet demanding operational needs.
The diaphragm, composed of premium neoprene, excels in resistance to aging, chemical aggressors, and exhibits minimal deformation even under continuous stress, ensuring optimal longevity and reliability.
Crafted from AISI420, the push rod features a surface that is extruded and nickel-plated, achieving a high-quality finish and outstanding corrosion resistance, enhancing its durability.
The guide bushing, made from aluminum bronze, offers superb guidance, minimal deformation at low temperatures, and ensures the air chamber maintains an excellent seal.
An A-type sealing ring fortifies the lower segment of the connection between the push rod and bracket, effectively preventing the intrusion of oil, sand, or dirt.

Application Flexibility
Interchangeable parts for all positive and reaction elements ensure versatility and ease of maintenance.
The actuator's spring installation position is adjustable to suit various stroke requirements. The integrally cast aluminum tray offers high and low installation positions, simplifying setup. Choose from 3, 4, or 6 springs to tailor the spring range to your exact needs;
obtain a diverse array of spring ranges, providing flexibility for nuanced applications.
Every actuator specification supports a wide variety of travel springs, accommodating an extensive range of valve diameters for unparalleled adaptability.
Two distinct handwheel mechanisms are available: top-mounted and side-mounted handwheels. Notably, the side-mounted handwheel is designed for complete separation from the actuator,
providing exceptional ease of installation and operation.
The actuator-valve connection uses a pressing plate and sleeve structure,
facilitating easy installation and on-site packing replacement.</sup>

<sup>Options

Adjustable upper travel limit: Precisely restricts upward actuator travel for controlled operation.
Adjustable lower travel limit: Precisely restricts downward actuator travel for controlled operation.
Top-mounted handwheel mechanism: Provides ergonomic control and accessibility.
Side-mounted handwheel mechanism: Designed for seamless integration and user convenience.
Actuators designed for low and high temperatures ensure performance in various environmental conditions.
Low-temperature actuators operational in environments:
Spanning from -60 to 70 ºC, these actuators maintain efficacy in extreme cold.
High-temperature actuators operational in environments ranging from -20 to 100 ºC, providing reliability in warmer climates.
Actuator locking device: Secures the actuator in a fixed position during maintenance, mirroring the fault position for safety and ease.
Includes position transmitters, manual mechanisms, and adjustable mechanical limits for comprehensive and customizable control.
Additional accessories for circuit control: Positioners, pressure reducing valves, solenoid valves, limit switches, lock valves, boosters, amplifiers, and pneumatic valves provide a full suite of control solutions.</sup>

Actuator Spring Ranges (psi)

1-X280 SERIES SIDE HANDWHEEL


1-X280 series overall dimensions & mass




Service Life

1. The diaphragmis coveredwith materialCrafted from precision-stamped steel, these components boast a galvanized and painted exterior that offers impressive corrosion resistance. This durable paint finish is engineered to stay intact, resisting any potential peeling. Complementing this is the actuator bracket, skillfully fashioned from cast or forged steel, guaranteeing a robust, dependable structure that withstands the test of time.

2. The diaphragm is constructed from high-quality neoprene rubber, known for its superior resistance to aging and chemical corrosion, while adeptly retaining shape under constant pressure and stress.

3. The push rod is made of premium AISI420 steel, featuring a nickel-plated surface that ensures exceptional smoothness and outstanding resistance to corrosion.

4. The guide bushing is made from sturdy aluminum bronze, providing exemplary guidance and minimal deformation even in low-temperature conditions, which ensures excellent air chamber sealing.

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

Application Flexibility

1. All direct-acting and reverse-acting components are universally designed to ensure seamless interchangeability.

2. The spring installation position is adaptable, tailored to the stroke length. The integrally cast aluminum tray provides dual installation options, high and low, for user-friendly installation. Meanwhile, 3, 4, or 6 springs can be efficiently configured to customize varying spring ranges.

3. Each actuator specification is enhanced with multiple spring options, effortlessly accommodating a broad array of valve sizes.

4. Featuring two sophisticated handwheel mechanisms: top-mounted and side-mounted. Specifically, the side-mounted handwheel is easily detachable, streamlining the installation process.

5. The actuator-valve connection employs a compression plate and sleeve structure, which simplifies installation and facilitates convenient on-site packing replacement.

Actuator Options

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

2. Adjustable Lower Stroke Limiter: Efficiently manages the downward stroke.

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

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

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

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

8. Actuator Locking Device: Reliably ensures the actuator remains secured in a locked position during maintenance, aligning with the actuator's fail-safe position.

9. Remote Venting: To ensure safety and prevent gas accumulation, especially when utilizing natural gas or other potentially hazardous gases as the actuator's air source, it is imperative that the actuator housing is equipped with a sophisticated venting device. This proactive approach safeguards operational integrity and enhances safety standards.

10. Additional Control Circuit Accessories: Positionerpressure regulator, solenoid valve, limit switch, locking valve, booster: These integral components are designed to enhance the functionality and precision of the system, providing seamless control and optimizing performance.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd. stands proudly as a distinguished producer of top-tier control valves, seamlessly merging the art of manufacturing, innovative designing, strategic sales, and exemplary services into one cohesive entity. Our foundation is built on a high starting point and rapid development, with our state-of-the-art facility nestled in the picturesque city of Qingdao, Shandong Province, sprawling over 42,000 square meters. This high-tech enterprise boasts independent intellectual property rights and leverages cutting-edge management and production expertise from around the globe. We employ a dedicated workforce of over 150 professionals, with 15% dedicated to research and development and 30% holding graduate or higher degrees. Backed by a world-class production management team and pioneering technology R&D, we specialize in producing high-quality valves extensively used in petrochemical, oil, and coal chemical industries, achieving a staggering sales value approaching 100 billion in the year 2017.

SNT has proudly obtained the TS special equipment manufacturing certificate and ISO 9001, along with the prestigious net qualification certificates from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our commitment to innovation is reflected in our numerous National Patents across various technologies. We possess the expertise to design and manufacture a comprehensive range of valves in accordance with ANSI, API, DIN, BS, and JIS standards. By harmonizing the strengths of renowned valve technologies worldwide with our independent R&D prowess, we have mastered the craft of producing an extensive variety of valves, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves.
Our extensive valve collection also features 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, and Cryogenic Valves. The driving forms available include manual operation, power-driven, pneumatic, and hydraulic drive systems. We use premium materials such as A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M, with specifications ranging from 1/2" to 120". Our products are built to withstand working pressures of ANSI 150# to 2500# and temperatures spanning from -196ºC to 1100ºC.

Leveraging advanced production technology management and an uncompromising quality assurance system, SNT Valves have carved a niche across industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed client roster includes key players like SINOPEC QILU and Qingdao branches, CNOOC Huizhou Refinery, and PETROCHINA branches in Guangxi and Ningxia, among others.

Placing our customers' profits at the forefront, we are relentlessly dedicated to building an outstanding reputation for quality and brand excellence. Our impeccable quality assurance and after-sales systems ensure that SNT Valves collaborates effectively with all our valued customers, paving the way for mutual prosperity and shared success.