Reliable Multi-Spring Pneumatic Diaphragm Actuators Featuring Stamped Steel

• 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

 

^{Introducing the 1-X280 Series: This state-of-the-art straight-stroke pneumatic diaphragm actuator stands as a pinnacle of engineering with its innovative multi-spring structure. Designed for versatility, it offers both positive and negative action forms, effortlessly achieving the desired fault position of the valve through its reliable spring reset mechanism. Seamlessly integrating with straight-stroke valves, this actuator excels in process parameter control and adjustment, reaching a remarkable maximum stroke of 76mm. Distinguished by its high-performance nature, this actuator boasts a lightweight build, delivering substantial thrust with a simple yet efficient structure, making it an essential component in modern applications.
Discover the 1-X250 Series: Engineered for precision, this straight-stroke pneumatic diaphragm actuator features a robust single-spring structure. Perfectly tailored for long-stroke control, it achieves a maximum stroke of 250mm, setting it apart from its counterparts. In comparison to pneumatic piston actuators, the 1-X250 Series offers unparalleled adjustment accuracy and a remarkably lightweight design, making it an ideal choice for cutting applications. This top-tier actuator comes equipped with a pneumatic valve, a speed increaser, and a fast discharge valve, ensuring rapid cutting capabilities with a swift minimum cutting time of just 1 second, optimizing efficiency and performance in demanding scenarios.}

 

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>Exceptional Durability and Longevity
The membrane cover is crafted from premium stamped steel, showcasing a surface that is galvanized and painted. This dual-layer protection not only prevents corrosion but also ensures that the paint remains intact and resists peeling.
Built to endure, the actuator bracket is made from either cast steel or forged steel, guaranteeing a structure that is both firm and reliable.
Engineered with neoprene, the diaphragm offers superior resistance to aging, chemical attacks, and maintains its integrity even under continuous stress, ensuring long-lasting performance.
The push rod is made from AISI420, featuring a surface that is extruded and nickel-plated. This combination provides an excellent finish and outstanding resistance to corrosion.
With an aluminum bronze construction, the guide bushing offers excellent guidance and minimal deformation at low temperatures, ensuring optimal sealing of the air chamber.
To safeguard against oil, sand, or dirt intrusion, the lower connection between the push rod and bracket is secured with an A-type sealing ring.

Application Flexibility for Diverse Needs
All positive and reactive parts are designed for interchangeability, offering versatility and adaptability.
One can adjust the spring installation position according to the stroke requirements. The integrally cast aluminum tray can be installed in two distinct positions, high or low, providing installation convenience and options. Furthermore, the choice to install 3, 4, or 6 springs allows for
customizing various spring ranges tailored to specific needs.
Each actuator specification includes a diverse selection of travel springs, enabling compatibility with a vast range of valve diameters.
For further customization, two types of hand wheel mechanisms are available: a top-mounted handwheel and a side-mounted handwheel. The side-mounted option, in particular, offers the advantage of being completely
detachable from the actuator, making installation exceedingly convenient.
The seamless connection between the actuator and the valve is achieved through
a pressing plate and sleeve structure, facilitating easy on-site installation and packing replacement.</sup>

<sup>Options Tailored for Your Specific Needs

Adjustable Upper Travel Limit: This option allows you to restrict the actuator's movement in the upward direction.
Adjustable Lower Travel Limit: This option enables you to limit the actuator's travel in the downward direction.
Top-Mounted Handwheel Mechanism: A versatile solution for control adjustments.
Side-Mounted Handwheel Mechanism: Designed for convenience and ease of use.
Specialized Actuators for Varied Temperatures: Low-temperature and high-temperature actuators cater to specific environmental conditions.
Low-Temperature Actuators Operating Range:
From -60 to 70 ºC, ensuring performance in frigid conditions.
High-Temperature Actuators Operating Range: From -20 to 100 ºC, providing reliability in hot environments.
Actuator Locking Device: Guarantees that the actuator remains securely in its locked position during maintenance, coinciding with the actuator fault position for added safety.
Comprehensive Range of Accessories: Includes a position transmitter, manual mechanism, maximum adjustable mechanical limit, and minimum adjustable mechanical limit.
Additional Control Circuit Accessories: These include a positioner, pressure reducing valve, solenoid valve, limit switch, lock valve, booster, amplifier, pneumatic valve, and more, ensuring complete control system integration.</sup>

Actuator Spring Ranges (PSI)

1-X280 SERIES SIDE HANDWHEEL


1-X280 Series Dimensions and Mass




Service Life

1. The diaphragmis constructed usingstamped steel witha galvanized and painted surface, offering exceptional corrosion resistance. Designed to withstand the test of time, the paint is durable and resistant to peeling. The actuator bracket, made from either cast or forged steel, promises unmatched structural integrity and reliability.

2. The diaphragm is constructed from neoprene rubber, offering excellent resistance to aging, chemical corrosion, and maintaining its shape under continuous stress.

3. The push rod is made of AISI420 with a nickel-plated surface, providing high smoothness and corrosion resistance.

4. The guide bushing is made from aluminum bronze, ensuring good guidance and minimal deformation at low temperatures, which maintains good air chamber sealing.

5. For the sealing, an 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 universal to ensure interchangeability.

2. The spring installation position can be adjusted according to the stroke. The integrally cast aluminum tray offers two installation positions: high and low, making installation convenient. Meanwhile, 3, 4, or 6 springs can be configured to achieve different spring ranges.

3. Each specification of the actuator comes with various spring options, accommodating a wide range of valve sizes.

4. There are two types of handwheel mechanisms: top-mounted and side-mounted. The side-mounted handwheel, in particular, can be completely detached from the actuator, making installation very convenient.

5. The connection between the actuator and the valve uses a compression plate and sleeve structure, facilitating easy installation and convenient on-site replacement of packing.

Actuator Options

1. Adjustable Upper Stroke Limiter: Used to limit the upward stroke of the actuator.

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

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

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

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

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

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

9. Remote Venting: When natural gas or other hazardous gases are used as the actuator's air source, the actuator housing should be equipped with a venting device to prevent 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. emerges as a trailblazer in the realm of control valves, seamlessly integrating manufacturing, design, sales, and service into a single powerhouse. Strategically positioned at a high starting point, SNT Machinery has experienced swift development and growth. Nestled in the vibrant city of Qingdao, Shandong Province, and sprawling over an impressive 42,000 square meters, our state-of-the-art facility is equipped with cutting-edge workshops and production equipment. Our company stands as a beacon of innovation as a high-tech enterprise, proudly holding independent intellectual property rights and boasting advanced management and production practices sourced globally. With a dynamic team of over 150 dedicated professionals, including 15% R&D specialists and 30% possessing graduate-level degrees or higher, we embody a fusion of quality and innovation. Our expertly crafted valves are indispensable to the petrochemical, oil, and coal chemical sectors, contributing to a remarkable sales turnover approaching 100 billion in 2017.

SNT Machinery has garnered prestigious certifications, including the TS Special Equipment Manufacturing Certificate and ISO 9001, while securing net qualification certificates from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our portfolio of national patents in various technologies further underscores our commitment to innovation. We pride ourselves on our ability to design and manufacture a comprehensive range of valves conforming to ANSI, API, DIN, BS, and JIS standards. Drawing inspiration from renowned global valve technologies, our independent R&D capabilities empower us to 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 valve offerings also encompass V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, among others. Our driving forms include manual operation, power-driven, pneumatic, and hydraulic drive mechanisms. We meticulously select materials for critical components, such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, ensuring durability and reliability. Our specifications range from 1/2" to 120", with working pressures from ANSI 150# to 2500#, and operational temperature thresholds spanning from -196ºC to 1100ºC.

Leveraging our cutting-edge production technology management and robust quality assurance system, SNT Valves have earned widespread acclaim across the petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele includes SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, among others, all of whom trust our products for their critical applications.

User profit remains our foremost priority, driving our unwavering commitment to exceptional quality and a distinguished brand identity. Our impeccable quality assurance and comprehensive after-sales systems ensure that SNT valves form enduring partnerships with our customers, fostering mutual prosperity and success.