High-Performance Multi-Spring Pneumatic Diaphragm Actuators for Industrial Use

• 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 an engineering marvel, boasting a versatile multi-spring structure available in both positive and negative action forms. This innovative design ensures seamless realization of the valve's required fault position, thanks to its reliable spring reset mechanism. When paired with a straight-stroke valve, it becomes an indispensable tool for the precise control and adjustment of process parameters, with an impressive maximum stroke of up to 76mm. This high-performance pneumatic actuator stands out with its feather-light weight, formidable thrust, and streamlined structure, making it an essential choice for industries demanding excellence.
The 1-X250 series straight-stroke pneumatic diaphragm actuator is the epitome of precision and efficiency, crafted with a single-spring structure for superior long-stroke control, achieving a remarkable maximum stroke of 250mm. Compared to pneumatic piston actuators, it offers unparalleled adjustment accuracy and a significantly lighter form. This state-of-the-art actuator is ideal for cutting applications, featuring a pneumatic valve, speed increaser, and fast discharge valve, which together enable rapid cutting capabilities. Its cutting-edge design allows for a minimum fast cutting time of just 1 second, ensuring swift and efficient operations in high-demand settings.}

 

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
Crafted with precision, the membrane cover is constructed from high-grade stamped steel. It boasts a dual-layer protection system of galvanization and expertly applied paint, ensuring unparalleled resistance to corrosion. This paint adheres steadfastly, maintaining its integrity over years of use.
Engineered for excellence, the actuator bracket is available in both cast and forged steel options. This assures a structure that is both robust and unwaveringly reliable, built to withstand the rigors of industrial demands.
The diaphragm employs durable neoprene material, renowned for its superior resistance to aging, chemical assaults, and deformation. It stands resilient under constant stress, making it a reliable choice for continuous operations.
The push rod, made from AISI420, shines with a meticulously extruded and nickel-plated finish. This not only enhances its visual appeal but also provides exceptional corrosion resistance and surface smoothness.
Aluminum bronze forms the core of the guide bushing, providing outstanding guidance. Even at low temperatures, it resists deformation, ensuring the tight, efficient sealing of the air chamber for optimized performance.
At the crucial junction where the push rod meets the bracket, an A-type sealing ring is employed, effectively barring the ingress of oil, sand, or dirt, thus maintaining operational cleanliness and efficiency.

Application flexibility
In a testament to design efficiency, all components-whether positive or reaction-are fully interchangeable, allowing for seamless adaptability across various setups.
Our design ingenuity allows for the spring installation positions to be tailored according to your specific stroke requirements. The integrally cast aluminum tray provides two practical mounting positions-high and low-facilitating easy setup. Choose to install 3, 4, or 6 springs to
achieve your desired spring range, offering customized performance across different applications.
Each actuator variant is equipped to handle a diverse array of travel springs, accommodating an extensive range of valve diameters, ensuring that your setup is as versatile as it is robust.
For manual operation convenience, we offer two innovative handwheel mechanisms: a top-mounted handwheel and a side-mounted handwheel. The latter's design allows it to be completely
detached from the actuator, providing exceptional ease during installation and maintenance.
The ingenious design of the actuator-valve connection utilizes a
pressing plate and sleeve structure, simplifying on-site packing replacements and installations, boosting efficiency.</sup>

<sup>Options

Adjustable upper travel limit: Precisely control the upward movement of the actuator, tailoring operations to your exact specifications.
Adjustable lower travel limit: Manage the downward travel of the actuator with precision, enhancing operational control.
Top-mounted handwheel mechanism: Offering ease of access and user-friendly operation.
Side-mounted handwheel mechanism: Designed for ease of separation and installation flexibility.
Low-temperature and high-temperature actuators: Specifically designed to operate in unique ambient temperature conditions.
Low-temperature actuators are engineered to excel within an impressive operating range of:
- 60 ~70 ºC, ensuring functionality in extreme cold.
High-temperature actuators thrive in extreme heat with an operating range of: - 20 ~100 ºC.
An actuator locking device ensures steadfast security, maintaining the actuator in its lock position throughout maintenance, mirroring the actuator's fault position for safety.
Comprehensive options include position transmitters, manual mechanisms, and both maximum and minimum adjustable mechanical limits.
Additional control circuit accessories: Enhance system performance with positioners, pressure reducing valves, solenoid valves, limit switches, lock valves, boosters, amplifiers, and pneumatic valves.</sup>

Actuator spring ranges(psi)

1-X280 SERIES SIDE HANDWHEEL


1-X280 series overall dimensions & mass




Service Life

1. The diaphragm cover is manufactured from premium stamped steel, treated with a galvanized and painted surface to ensure maximum corrosion resistance. This meticulous finish provides enduring protection against peeling, and coupled with the actuator bracket crafted from either cast or forged steel, delivers a structure of unmatched durability and reliability.

2. The diaphragm is constructed from neoprene rubber, renowned for its superior durability against aging and chemical corrosion, and its remarkable ability to maintain form and function under continuous stress.

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

4. The guide bushing is made from high-quality aluminum bronze, ensuring optimal guidance with minimal deformation at low temperatures, thereby preserving excellent air chamber sealing integrity.

5. For the sealing, an A-type sealing ring is utilized beneath the push rod and bracket connection, effectively preventing the penetration of oil, sand, or debris.

Application Flexibility

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

2. The spring installation position can be customized according to the stroke, with an integrally cast aluminum tray offering dual installation configuration: high and low, enhancing installation convenience. Meanwhile, 3, 4, or 6 springs can be configured to achieve tailored spring ranges for specific needs.

3. Each actuator specification is equipped with diverse spring options, catering to a broad spectrum of valve sizes to meet varied operational requirements.

4. Two types of handwheel mechanisms are available: top-mounted and side-mounted. The side-mounted handwheel, notably, can be fully detached from the actuator, ensuring highly convenient installation.

5. The actuator-to-valve connection employs a compression plate and sleeve structure, streamlining installation and simplifying on-site packing replacement.

Actuator Options

1. Adjustable Upper Stroke Limiter: Facilitates limitation of the actuator's upward stroke.

2. Adjustable Lower Stroke Limiter: Facilitates limitation of the actuator's downward stroke.

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

5. Low and High-Temperature Actuators: Engineered specifically for unique environmental challenges,.

6. Low-Temperature Actuators: Tailored for environments experiencing temperatures spanning -60°C to 70°C.

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

8. Actuator Locking Device: Ensures the actuator remains secured in a locked position during maintenance, aligned with the fail-safe position of the actuator.

9. Remote Venting: In scenarios utilizing natural gas or other hazardous gases as the actuator's air source, the actuator housing is equipped with a venting device to mitigate gas accumulation.

10. Additional Control Circuit Accessories: Pafcdfa60

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd. stands as a beacon of innovation and excellence in the realm of control valves. A holistic enterprise, SNT seamlessly integrates manufacturing, design, sales, and service into one cohesive entity. Strategically nestled in Qingdao, Shandong Province, covering a sprawling 42,000 square meters, the company boasts state-of-the-art workshops and cutting-edge production facilities. Proudly recognized as a high-tech enterprise, SNT is armed with independent intellectual property rights and a wealth of imported managerial and production expertise. Supported by a dynamic team exceeding 150 skilled professionals, where 15% are dedicated R&D specialists and 30% hold graduate or higher degrees, SNT leverages a high-caliber production management team and pioneering research and development technology. This enables the production of premium valves extensively utilized in the petrochemical, oil, and coal chemical sectors. In 2017 alone, SNT achieved an impressive sales value nearing 100 billion.

SNT Machinery has proudly secured the TS special equipment manufacturing certificate and ISO 9001 accreditation. In addition, it boasts the net qualification certificate from esteemed institutions such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. With numerous national patents to its name, SNT is capable of designing and manufacturing a comprehensive array of valves in strict adherence to ANSI, API, DIN, BS, and JIS standards. By integrating the best attributes of renowned valves globally with its own ingenuity, SNT offers an extensive range of valves. These include 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 impressive portfolio further encompasses V Ball Valves, High Wear-Resistant Ball Valves, High-Pressure Steam Valves, Micro-Flow Control Valves, Self-Operated Control Valves, and specialized Cryogenic Valves. We provide versatile driving forms such as manual, power-driven, pneumatic, and hydraulic operations. The main components are crafted from premium materials like A216 WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, among others. Specifications span from 1/2" to a formidable 120", with working pressures ranging from ANSI 150# to 2500#, and temperatures stretching an impressive -196ºC to 1100ºC.

Backed by cutting-edge production technology management and an unwavering quality assurance system, SNT Valves are the trusted choice across multiple industries including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele boasts notable names such as SINOPEC QILU Branch, SINOPEC Qingdao Branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi Branch, PETROCHINA Ningxia Branch, SINOPEC Qingdao Refinery, SINOPEC Changling Branch, Jinan Branch, and many more.

Prioritizing our users' profitability, SNT is passionately committed to fostering exceptional quality and a sterling brand reputation. Our flawless quality assurance and comprehensive after-sales systems ensure that SNT valves form lasting partnerships with our clients, driving mutual success and prosperity.