Premium Multi-Spring Pneumatic Diaphragm Actuators with Galvanized Coating

• 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 illustrious 1-X280 series straight-stroke pneumatic diaphragm actuator is an engineering marvel that boasts a multi-spring structure. Available in both positive and negative action forms, it offers unparalleled ease in achieving the desired fault position of the valve, thanks to its innovative spring reset mechanism. Seamlessly integrating with the straight-stroke valve, this actuator is designed to excel in the control and adjustment of vital process parameters. With an impressive maximum stroke capacity of 76mm, this high-performance pneumatic actuator stands out with its lightweight design, robust thrust, and elegantly simple structure that together epitomize cutting-edge efficiency.
Introducing the 1-X250 series straight-stroke pneumatic diaphragm actuator, a pinnacle of precision with its single-spring configuration. In comparison to the 1-X280 series, the 1-X250 is engineered for exceptional performance in long-stroke control, achieving a remarkable maximum stroke of 250mm. Its superiority over pneumatic piston actuators is evident in its enhanced adjustment accuracy and feather-light weight, making it ideal for cutting applications. Paired with a pneumatic valve, speed increaser, and fast discharge valve, it facilitates extraordinary rapid cutting, with a minimum fast cutting time reaching an astounding 1 second.}

 

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 the unparalleled durability of our actuators, designed for a long service life that ensures consistent performance and reliability.
Crafted from premium stamped steel, the membrane cover boasts a galvanized and painted finish for superior corrosion prevention, ensuring that the paint remains intact and steadfast over time.
Our actuator bracket, made from either cast steel or forged steel, provides a solid and dependable structure that stands the test of time.
The diaphragm, composed of high-quality neoprene, offers exceptional resistance to aging, chemical attacks, and maintains its form under prolonged stress, guaranteeing long-lasting performance.
The push rod, made from AISI420, features an extruded and nickel-plated surface that delivers high finish and exceptional corrosion resistance.
The guide bushing, crafted from aluminum bronze, ensures remarkable guidance and minimal deformation at low temperatures, enhancing the air chamber's sealing capabilities.
Sealed with an A-type sealing ring, the lower part of the connection between the push rod and the bracket effectively prevents the intrusion of oil, sand, or dirt, ensuring continuous operation.

Application Flexibility
Discover the ease of maintenance with fully interchangeable positive and reaction parts, designed for adaptability and efficiency.
With adjustable spring installation positions, our integrally cast aluminum tray offers two convenient installation options, high and low, allowing for the customization of 3, 4, and 6 springs to
achieve the desired spring ranges;
Our versatile actuators accommodate various travel springs, making them compatible with a wide array of valve diameters.
Choose between top-mounted and side-mounted handwheel mechanisms, with the side-mounted variant offering complete
separation from the actuator, providing maximum convenience
during installation. The connection between the actuator and the valve features a
pressing plate and sleeve structure, simplifying on-site packing replacements and installations.</sup>

<sup>Options

Adjustable upper travel limit: precisely restricts the actuator's upward movement for enhanced control.
Adjustable lower travel limit: precisely restricts the actuator's downward movement for enhanced control.
Opt for the top-mounted handwheel mechanism for optimal operational adaptability.
Opt for the side-mounted handwheel mechanism for optimal operational adaptability.
Select low-temperature and high-temperature actuators tailored for specific ambient conditions, ensuring performance in diverse environments.
Low-temperature actuators Operating temperature: designed to function seamlessly between
- 60 ~70 ºC, ensuring operation in extremely cold conditions.
High-temperature actuators Operating temperature: designed to function seamlessly between - 20 ~100 ºC, ensuring operation in extremely hot conditions.
An actuator locking device guarantees that the actuator remains securely in the locked position during maintenance, mirroring the fault position for safety.
Enhance versatility with accessories like position transmitters, manual mechanisms, and both maximum and minimum adjustable mechanical limits.
Equipped with a suite of control circuit accessories, including positioners, pressure reducing valves, solenoid valves, limit switches, lock valves, boosters, amplifiers, and pneumatic valves for advanced functionality.</sup>

Actuator Spring Ranges (PSI)

1-X280 SERIES SIDE HANDWHEEL


1-X280 Series Overall Dimensions & Mass




Service Life

1. The diaphragmcover iscrafted fromhigh-grade stamped steel, featuring a galvanized and painted surface for enhanced corrosion resistance. The paint is engineered for durability, ensuring it remains intact and resilient. The actuator bracket, built from cast or forged steel, promises a robust and reliable structural integrity that lasts.

2. The diaphragmdiaphragm is craftedfrom robust neoprene rubber, delivering superior resistance to aging and chemical corrosion, while consistently maintaining its shape under continuous stress.

3. The push rodpush rodrod is meticulously engineeredfrom AISI420 stainless steel with a nickel-plated surface, ensuring exceptional smoothness and enhanced corrosion resistance.

4. The guide bushingguide bushingbushing is expertly producedfrom premium aluminum bronze, guaranteeing excellent guidance and minimal deformation at lower temperatures, thus maintaining optimal air chamber sealing.

5. For sealingsealing, anA-type sealing ring is incorporated beneath the connection point of the push rod and bracket to effectively prevent the intrusion of oil, sand, or dirt.

Application Flexibility

1. All direct-acting and reverse-acting components are universally designed to ensureseamless interchangeability, enhancing operational versatility.

2. The spring installation position is adjustable based on stroke requirements. The integrally cast aluminum tray offers dual installation positions: high and low, simplifying the installation process. Moreover, 3, 4, or 6 springs can be configured to accommodate varying spring ranges, granting flexibility in application.

3. Each actuator specification comes equipped with diverse spring options, adeptly catering to a broad spectrum of valve sizes.

4. The actuator features two handwheel mechanism types: top-mounted and side-mounted. Notably, the side-mounted handwheel can be completely detached, greatly simplifying the installation process.

5. The connection between the actuator and valve is facilitated by a compression plate and sleeve structure, promoting easy installation and convenient on-site packing replacement.

Actuator Options

1. Adjustable Upper Stroke Limiter: Precisely regulates the upward stroke of the actuator, ensuring optimal performance.

2. Adjustable Lower Stroke Limiter: Specifically designed to control the downward stroke of the actuator, enhancing functionality.

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

5. Low and High-Temperature Actuators: Expertly engineered for specific environmental conditions,ensuring reliability and functionality.

6. Low-Temperature Actuators: Optimally suitable for environments with temperatures from -60°C to 70°C, offering exceptional performance.

7. High-Temperature Actuators: Specifically tailored for environments ranging from -20°C to 100°C, offering robust operation under extreme conditions.

8. Actuator Locking Device: Ensures the actuator remains securely locked during maintenance, aligning with the fail-safe position of the actuator for enhanced safety.

9. Remote Venting: In scenarios where natural gas or other hazardous gases serve as the actuator's air source, the actuator housing is equipped with a venting device, effectively preventing gas accumulation for increased safety.

10. Additional Control Circuit Accessories: Positioner ExcellencePositioner, pressure regulator, solenoid valve, limit switch, locking valve, and booster

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd. stands as a formidable force in the realm of control valve production, seamlessly integrating the art of manufacturing, innovative design, dynamic sales, and exceptional service all under one roof. Nestled in the vibrant city of Qingdao, Shandong Province, our expansive 42,000m2 facility is a testament to modern engineering, boasting state-of-the-art workshops and cutting-edge production equipment. As a high-tech enterprise, we pride ourselves on our proprietary technologies and the importation of advanced management and production expertise. Our team, over 150 strong, includes a dedicated 15% specializing in R&D, and an impressive 30% hold graduate or advanced degrees. Our commitment to excellence is reflected in our superior production management and groundbreaking technological research, enabling us to deliver high-quality valves across the petrochemical, oil, and coal chemical sectors. In 2017 alone, our sales value surged to nearly 100 billion, showcasing our impact and reach.

SNT has proudly secured the TS special equipment manufacturing certificate and ISO 9001 accreditation, underscoring our commitment to quality. We are honored to be recognized with the net qualification certificate from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM, as well as numerous national patents across various technologies. Our catalog of valve designs adheres to a range of esteemed standards, including ANSI, API, DIN, BS, and JIS. By harnessing the advantages of globally renowned valves and conducting independent research, we have mastered the production of an extensive array of valve types: 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 product range includes V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, and more. We offer an array of driving forms such as manual, power-driven, pneumatic, and hydraulic. The material composition of our main parts includes A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. Our specifications span 1/2" to 120", accommodating working pressures from ANSI 150# to 2500#, and operational temperatures ranging from -196ºC to 1100ºC.

SNT Valves, synonymous with precision and reliability, are integrated across diverse sectors including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Esteemed clients like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and SINOPEC Changling branch among others, underscore our widespread influence and trusted partnerships.

We prioritize our customers' success, dedicating ourselves to crafting superior quality and establishing a distinguished brand reputation. Our comprehensive quality assurance and after-sales systems ensure that SNT valves not only meet but exceed expectations, fostering long-term collaborations that drive mutual prosperity.