Multi-Spring Pneumatic Diaphragm Actuators with Durable Override Surface Material

• 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 innovative 1-X280 series straight-stroke pneumatic diaphragm actuator, a marvel of engineering that employs an advanced multi-spring structure to offer unparalleled flexibility. Available in both positive and negative action forms, this actuator grants effortless control over the valve's fault position, thanks to its efficient spring reset mechanism. Designed to seamlessly integrate with straight-stroke valves, it excels in the precision control and adjustment of process parameters. With an impressive maximum stroke of up to 76mm, this high-performance actuator is celebrated for its featherlight construction, significant thrust capacity, and elegantly simple design, making it a standout choice for discerning professionals.
Experience the cutting-edge technology of the 1-X250 series straight-stroke pneumatic diaphragm actuator, renowned for its single-spring architecture that sets it apart from the 1-X280 series. Specifically engineered for long-stroke control, it boasts a remarkable maximum stroke of 250mm. Compared to traditional pneumatic piston actuators, the 1-X250 offers superior adjustment precision and a notably lighter profile. Ideal for cutting applications, it's equipped with essential components such as a pneumatic valve, speed increaser, and fast discharge valve, enabling rapid cutting capabilities with a minimum fast cutting time as swift as 1 second. This makes it an exceptional choice for operations requiring speed and 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>Extended Longevity
Constructed with high-quality stamped steel, the membrane cover boasts a galvanized and painted surface, offering exceptional protection against corrosion. This durable paint finish is expertly crafted to resist peeling, ensuring lasting performance.
The actuator bracket is engineered from either cast steel or forged steel, providing a steadfast and robust structure that guarantees reliability in demanding conditions.
Crafted from neoprene, the diaphragm excels in resisting aging damage and chemical attacks. It maintains its structural integrity without deformation, even under continuous stress, ensuring dependability.
Featuring a push rod made from AISI420, the surface is meticulously extruded and nickel-plated. This process results in a high finish, enhancing its corrosion resistance and ensuring enduring quality.
The guide bushing is composed of aluminum bronze, delivering superior guidance with minimal deformation at low temperatures. This ensures the air chamber's sealing efficiency is consistently high.
The lower connection of the push rod to the bracket is expertly sealed with an A-type sealing ring. This prevents the infiltration of oil, sand, or dirt, maintaining the system's integrity.

Versatile Application
All components, both positive and reactive, are fully interchangeable, offering flexibility in application.
The spring installation is adaptable, allowing stroke-based adjustments. The integrally cast aluminum tray features dual installation positions, high and low, enhancing installation convenience. Opt for 3, 4, or 6 springs to
achieve varying spring ranges, meeting diverse operational needs.
Each actuator specification supports a broad array of travel springs, accommodating a wide spectrum of valve diameters.
Featuring dual handwheel mechanisms: a top-mounted option and an innovative side-mounted design. Notably, the side-mounted handwheel is completely
detachable from the actuator, streamlining its installation.
The actuator-valve connection employs a
pressing plate and sleeve structure, simplifying on-site installation and packing replacement.</sup>

<sup>Customization Options

Adjustable upper travel limit: Precision control over the actuator's upward travel is ensured.
Adjustable lower travel limit: Enables precise adjustments to limit downward travel.
Top-mounted handwheel mechanism for additional operational flexibility.
Side-mounted handwheel mechanism to suit varied installation requirements.
Specialized actuators for extreme temperatures: tailor-made for specific environmental conditions.
Low-temperature actuators Operate seamlessly within:
-60 to 70 ºC.
High-temperature actuators Operate efficiently between:-20 to 100 ºC.
An actuator locking device ensures the actuator remains securely locked during maintenance, matching the fault position for safety.
Enhanced control with the position transmitter, manual mechanisms, and adjustable mechanical limits for maximum and minimum settings.
Comprehensive control circuit accessories: including positioners, pressure reducing valves, solenoid valves, limit switches, lock valves, boosters, amplifiers, and pneumatic valves.</sup>

Precision Actuator Spring Ranges (psi)

1-X280 SERIES WITH SIDE HANDWHEEL


1-X280 Series Dimensions & Mass Overview




Prolonged Service Life

1. The diaphragmcover ismanufactured fromhigh-grade stamped steel, featuring a galvanized and painted surface. This ensures superior corrosion resistance, while the durable paint provides long-lasting protection against peeling. The actuator bracket, crafted from premium cast or forged steel, guarantees structural robustness and reliability.

2. The diaphragmdiaphragm is craftedfrom premium neoprene rubber, renowned for its exceptional resilience against aging and chemical corrosion. This robust material maintains its form even under continuous stress, ensuring longevity and optimal performance.

3. The pushpush rodrod is meticulouslyformed from AISI420, boasting a nickel-plated surface that delivers remarkable smoothness and superior corrosion resistance.

4. The guideguide bushingbushing is constructedfrom durable aluminum bronze, offering outstanding guidance and minimal deformation even at low temperatures, thereby maintaining excellent sealing in the air chamber.

5. For the sealingsealing, anA-type sealing ring is strategically positioned beneath the connection point of the push rod and bracket. This essential feature effectively prevents the intrusion of oil, sand, or dirt, safeguarding the integrity of the system.

Application Flexibility

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

2. The spring installation position is fully adjustable according to the stroke. The integrally cast aluminum tray provides two installation options-high and low-making installation effortlessly convenient. Meanwhile, 3, 4, or 6 springs can be adeptly configured to achieve a spectrum of spring ranges, offering versatility.

3. Each actuator specification includes a variety of spring alternatives, accommodating an extensive range of valve sizes to meet diverse requirements.

4. Two distinctive handwheel mechanisms are available: top-mounted and side-mounted. The side-mounted handwheel, notably, can be fully detached from the actuator, significantly simplifying installation.

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

Actuator Options

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

2. Adjustable Lower Stroke Limiter: Engineered to restrict the downward stroke of the actuator.

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: Skillfully designed 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 to its fail-safe position.

9. Remote Venting: To address the use of natural gas or other hazardous gases as the air source for the actuator, the actuator housing is equipped with a venting device to avert gas buildup, enhancing safety.

10. Additional Control Circuit Accessories: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster - Enhance your system's functionality and precision with our premium range of additional control circuit accessories, meticulously engineered to meet your diverse operational needs.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd. is a premier producer of cutting-edge control valves, seamlessly integrating manufacturing, designing, sales, and services under one visionary roof. Launching from a high starting point with rapid development, SNT is strategically located in Qingdao, Shandong province, sprawling across 42,000 square meters, complete with state-of-the-art workshops and production facilities. As a beacon of innovation, this high-tech enterprise boasts independent intellectual property rights, augmented by imported advanced management and production expertise. With a dedicated workforce exceeding 150, where 15% are R&D specialists and 30% hold graduate degrees or higher, SNT stands at the forefront of excellence. Our high-caliber production management team and pioneering tech R&D enable the large-scale fabrication of superior valves, pivotal to the petrochemical, oil, and coal chemical sectors. In 2017, our sales value soared to nearly 100 billion, a testament to our quality and innovation.

SNT proudly holds the TS Special Equipment Manufacturing Certificate and ISO 9001 certification, reflecting our commitment to quality and safety. We have earned the net qualification certificates from industry giants SINOPEC, CNOOC, PETROCHINA, and SINOCHEM, and have secured numerous national patents for our groundbreaking technologies. Our expertise spans the design and manufacture of a comprehensive range of valves meeting ANSI, API, DIN, BS, and JIS standards. By blending the best features of renowned global valves with our proprietary research and development, we produce an array of valves, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and Triple-eccentric Center Butterfly Valves.
Our expansive portfolio also encompasses 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 driven by manual, power-driven, pneumatic, and hydraulic systems. We utilize premium materials such as A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. Specifications range from 1/2" to an impressive 120", with working pressures from ANSI 150# to 2500#, and operational temperatures spanning -196ºC to 1100ºC.

Leveraging our cutting-edge production technology management and robust quality assurance system, SNT Valves have secured a vital role in industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele includes industry leaders like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and SINOPEC Changling branch, among others, underlining our commitment to excellence.

We prioritize our users' profitability, dedicating ourselves to crafting exceptional quality and fostering a reputable brand. Our meticulous quality assurance and comprehensive after-sales systems ensure that SNT valves partner with all our customers, forging a path to shared prosperity and success.