Multi-Spring Pneumatic Diaphragm Actuators with Durable Steel Cover 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

Product Description

 

About Pneumatic Diaphragm

 

^{The 1-X280 Series Straight-Stroke Pneumatic Diaphragm Actuator is a marvel of engineering excellence, featuring a multi-spring structure that offers exceptional versatility with both positive and negative actions. This ingenious system seamlessly achieves the desired fault position of the valve, thanks to the reliable spring reset mechanism. When paired with a straight-stroke valve, it becomes an indispensable tool for controlling and fine-tuning process parameters. Boasting a maximum stroke of 76mm, this actuator exemplifies high performance with its lightweight design, impressive thrust, and straightforward construction. Experience the pinnacle of pneumatic actuation with features that prioritize efficiency and reliability.
The 1-X250 Series Straight-Stroke Pneumatic Diaphragm Actuator stands out with its innovative single-spring structure, offering precision and control for long-stroke applications with an impressive maximum stroke of 250mm. Distinguished from pneumatic piston actuators, it delivers unparalleled adjustment accuracy while maintaining a lightweight profile. Tailored for cutting applications, it is equipped with a pneumatic valve, speed increaser, and fast discharge valve, enabling swift and efficient cutting processes. With a minimum fast cutting time of just 1 second, this actuator is designed to meet the demands of speed and precision, assuring high-performance results in any industrial setting.}

 

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
The membrane cover, crafted from stamped steel, boasts a surface that is galvanized and painted to provide exceptional corrosion resistance. The paint is formulated to last and resist peeling;
The actuator bracket, a masterpiece of engineering, is constructed from either cast steel or forged steel, offering an unshakeable firm and reliable structure;
The diaphragm is meticulously crafted from neoprene, renowned for its outstanding resistance to aging, chemical attacks, and its ability to maintain form under continuous stress;
The push rod's material is AISI420, with a surface treated through extrusion and nickel plating to achieve high finesse and remarkable corrosion resistance;
The guide bushing, made from aluminum bronze, ensures precise guidance and minimal deformation at low temperatures, safeguarding the air chamber's excellent sealing integrity;
The lower section of the connection between the push rod and the bracket is securely sealed with an A-type sealing ring, effectively blocking oil, sand, or dirt intrusion.

Application flexibility
All positive and reaction components are fully interchangeable, offering unparalleled versatility.
The spring installation can be tailored according to the stroke, with an integrally cast aluminum tray offering high and low installation positions for convenience. You have the choice to install 3, 4, or 6 springs to
achieve a variety of spring ranges tailored to your needs;
Each actuator specification comes with diverse travel springs, allowing compatibility with a broad spectrum of valve diameters;
There are two ingenious handwheel mechanisms: a top-mounted handwheel and a side-mounted handwheel. Notably, the side-mounted handwheel is designed to be completely
detached from the actuator, ensuring an exceptionally convenient installation process.
Installing the connection between the actuator and the valve is straightforward with the
innovative pressing plate and sleeve structure, facilitating easy on-site packing replacement.</sup>

<sup>Options

Adjustable upper travel limit: expertly designed to cap the upward travel of the actuator.
Adjustable lower travel limit: purposefully crafted to restrict the downward travel of the actuator.
Top-mounted handwheel mechanism, offering enhanced control.
Side-mounted handwheel mechanism, designed for flexibility and ease.
Specialized low-temperature and high-temperature actuators: tailored for specific ambient temperature conditions.
Low-temperature actuators Operating seamlessly between:
- 60 ~ 70 ºC.
High-temperature actuators Operating efficiently between: - 20 ~ 100 ºC.
A sophisticated actuator locking device: ensures the actuator remains securely in place during maintenance (matches the actuator fault position).
A variety of options including Position transmitter, manual mechanism, maximum adjustable mechanical limit, and minimum adjustable mechanical limit for precision control.
Advanced accessories for control circuit: positioner, pressure-reducing valve, solenoid valve, limit switch, lock valve, booster, amplifier, pneumatic valve, and more.</sup>

Actuator spring ranges(psi)

1-X280 SERIES SIDE HANDWHEEL


1-X280 series overall dimensions & mass




Service Life

1. The diaphragm cover is made of stamped steel with a pristine galvanized and painted surface, engineered for superior corrosion resistance. The paint is robustly designed to withstand peeling. The actuator bracket, crafted from cast or forged steel, promises an unyielding and reliable structure.

2. The dDazzling in its efficiency, the diaphragm is crafted with precision.Constructed from resilient neoprene rubber, it offers exceptional resistance to aging and chemical corrosion, maintaining its flawless shape even under continuous stress.

3. The pushpush rodrod is madeof AISI420 stainless steel. The nickel-plated surface ensures a mirror-like smoothness while providing robust corrosion resistance.

4. The guidebushing bushingbushing is expertly madefrom high-quality aluminum bronze. It guarantees superior guidance and minimal deformation at low temperatures, ensuring an impeccable seal within the air chamber.

5. For the sealingsealing, anA-type sealing ring is ingeniously placed below the push rod and bracket connection, effectively blocking oil, sand, or dirt infiltration.

Unmatched Application Flexibility

1. All direct-acting and reverse-acting components are universally designed to ensure completeinterchangeability, providing the ultimate in flexibility. interchangeability.

2. The position of the spring can be tailored to the stroke, thanks to the integrally cast aluminum tray. It features two distinct installation positions: high and low, for effortless setup. Meanwhile, 3, 4, or even 6 springs can be configured to achieve a wide array of spring ranges, catering to diverse needs.

3. Each actuator specification is engineered to accommodate various spring options, perfectly matching a broad spectrum of valve sizes.

4. Choose from two types of handwheel mechanisms: top-mounted and side-mounted. The side-mounted option can be detached entirely from the actuator, simplifying the installation process.

5. The innovative connection between the actuator and the valve employs a compression plate and sleeve structure, streamlining installation and enabling convenient on-site packing replacement.

Actuator Options Tailored for Excellence

1. Adjustable Upper Stroke Limiter: Expertly used to restrict the upward stroke of the actuator.

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

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

5. Low and High-Temperature Actuators: Specifically crafted to thrive in unique environmental conditions.

6. Low-Temperature Actuators: Perfectly suited for environments where temperatures range between -60°C and 70°C.

7. High-Temperature Actuators: Ideally designed for conditions with temperatures spanning from -20°C to 100°C.

8. Actuator Locking Device: Ingeniously ensures the actuator is securely locked during maintenance, aligning perfectly with the fail-safe position of the actuator.

9. Remote Venting: Critical when utilizing natural gas or other hazardous gases as the actuator's air source. The housing is equipped with a venting device to prevent any gas accumulation.

10. Additional Control Circuit Accessories: POur versatile product lineup includes precision-engineered accessories such as the positioner, pressure regulator, solenoid valve, limit switch, locking valve, and booster. Each component is meticulously crafted to ensure seamless integration and optimal performance in your system, promising exceptional reliability and efficiency.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd stands as an eminent force in the production of control valves, seamlessly integrating manufacturing, design, sales, and service into a single dynamic entity. Strategically situated in the bustling city of Qingdao, Shandong Province, SNT spans an impressive 42,000 square meters, boasting state-of-the-art workshops and cutting-edge production equipment. As a beacon of innovation and excellence, SNT holds the prestigious status of a high-tech enterprise, fortified by proprietary intellectual property and enriched with globally sourced management and production expertise. With a dedicated team exceeding 150 members, including 15% R&D specialists and 30% graduates or higher degree holders, SNT thrives on robust production management and pioneering technology research. Our high-caliber valves, crafted for petrochemical, oil, and coal chemical applications, underscore our annual sales achievement nearing a monumental 100 billion in 2017.

SNT proudly holds the TS special equipment manufacturing certificate alongside ISO 9001 accreditation and has secured net qualification from industry giants SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our expertise is further validated by numerous National Patents across multiple technological fronts. Mastering ANSI, API, DIN, BS, and JIS standards, we design and manufacture a comprehensive lineup of valves. Through a blend of global valve innovations and proprietary R&D, our portfolio includes GLOBE Valves, High-Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and T Three-eccentric Center Butterfly Valves.
Our expansive offering extends to V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. The diverse driving methods available include manual, power-driven, pneumatic, and hydraulic options. Key materials encompass A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M, with specifications ranging from 1/2" to 120", accommodating working pressures from ANSI 150# to 2500#, and operation across temperatures from -196ºC to 1100ºC.

Harnessing advanced production technology management and a stringent quality assurance system, SNT Valves shine brightly across petrochemical, oil, steel & iron, paper manufacturing, and power station sectors. Our esteemed clientele includes SINOPEC QILU and Qingdao branches, CNOOC Huizhou Refinery, PETROCHINA Guangxi and Ningxia branches, SINOPEC Changling and Jinan branches, among others.

At SNT, the prosperity of our users is paramount. We are committed to forging exceptional quality and cultivating a respected brand. Our robust quality assurance and comprehensive after-sales systems ensure that SNT Valves stand shoulder to shoulder with our customers, forging a path to mutual success and shared prosperity.