Heavy-Duty Multi-Spring Pneumatic Diaphragm Actuators with Painted Surface

• 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 a marvel of engineering, featuring a sophisticated multi-spring structure available in both positive action and negative action configurations. This versatility enables effortless attainment of the valve's desired fault position through the reliable spring reset mechanism. Seamlessly integrated with the straight-stroke valve, it excels in the precise control and adjustment of process parameters with a commendable maximum stroke capability of 76mm. This high-performance pneumatic actuator stands out with its lightweight design, impressive thrust capacity, and uncomplicated structure, making it an indispensable tool in advanced applications.
The 1-X250 series straight-stroke pneumatic diaphragm actuator is engineered with a single-spring design, setting it apart from the 1-X280 series with its specialization in long-stroke control, boasting an impressive maximum stroke of 250mm. When compared to the pneumatic piston actuator, the 1-X250 series offers superior adjustment precision and a lighter construction, making it ideal for cutting operations. It is enhanced with a pneumatic valve, speed increaser, and fast discharge valve, ensuring rapid execution with minimum cutting times reaching as swift as 1 second, offering unparalleled efficiency and accuracy.}

 

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 unparalleled longevity with our actuators, built for a long service life.
Crafted with precision, the membrane cover is made of stamped steel, featuring a double-layer surface treatment of galvanization and painting to ward off corrosion. This ensures the paint remains steadfastly in place.
Engineered for dependability, the actuator bracket is constructed from robust cast or forged steel, providing a structure that is both firm and exceptionally reliable.
The diaphragm, made of high-quality neoprene, boasts exceptional resistance to aging, chemical attacks, and maintains its shape even under constant stress.
The push rod material, AISI420, is extruded and nickel-plated, offering a smooth finish with superior resistance to corrosion.
Designed for precision, the guide bushing of aluminum bronze offers excellent guidance and minimal deformation even in low temperatures, ensuring optimal sealing of the air chamber.
An A-type sealing ring at the junction of the push rod and bracket prevents oil, sand, or dirt ingress, maintaining the integrity of the connection.

Application Flexibility
Interchangeability at its finest: All positive and reaction parts can be swapped effortlessly.
Adapt to your needs with adjustable spring installation positions tailored to the stroke. The integrally cast aluminum tray offers dual installation modes, high and low, simplifying the process. Choose from 3, 4, or 6 springs to
meet diverse spring range requirements.
Each actuator specification accommodates a myriad of travel springs, compatible with a wide range of valve diameters.
Customize with two handwheel mechanism options: top-mounted or side-mounted, the latter offering complete
separation from the actuator for utmost convenience.
Installation is a breeze; the actuator connects to the valve through a
pressing plate and sleeve structure, streamlining on-site packing replacement.</sup>

<sup>Options

Fine-tune with an adjustable upper travel limit to control actuator travel upwards.
Adjustable lower travel limit to precisely control downward actuator movement.
Top-mounted handwheel mechanism for effortless adjustment.
Side-mounted handwheel mechanism for optimized performance.
Specialized actuators for varying temperatures: choose low-temperature or high-temperature models.
Low-temperature actuators operate efficiently between:
-60 to 70 ºC.
High-temperature actuators function within a range of -20 to 100 ºC.
An actuator locking device ensures it stays securely locked during maintenance, matching the fault position.
Equip with a position transmitter, manual mechanism, and adjustable mechanical limits for maximum and minimum settings.
Enhance control circuits with additional accessories such as positioners, pressure reducing valves, solenoid valves, limit switches, lock valves, boosters, amplifiers, pneumatic valves, and more.</sup>

Actuator Spring Ranges (psi)

1-X280 Series Side Handwheel


1-X280 Series Overall Dimensions & Mass




Service Life

1. The diaphragmcover ismade of stamped steel, ensuring durability and longevity.Crafted from high-quality stamped steel, the surface of the Heavy-Duty Multi-Spring Pneumatic Diaphragm Actuators is both galvanized and painted, ensuring exceptional corrosion resistance. The specially formulated paint is long-lasting and resists peeling, maintaining a pristine appearance. The actuator bracket, engineered from cast or forged steel, offers a robust and reliable structure designed for heavy-duty applications.

2. The diaphragm is constructed from premium neoprene rubber, which provides outstanding resistance against aging and chemical corrosion. It retains its form even under continuous stress, ensuring longevity and reliability.

3. The push rod is made of AISI420 stainless steel with a refined nickel-plated surface, offering exceptional smoothness and high resistance to corrosion.

4. The guide bushing is made from durable aluminum bronze, providing excellent guidance and minimal deformation at lower temperatures. This ensures optimal air chamber sealing for enhanced performance.

5. For the sealing, an A-type sealing ring is strategically placed below the push rod and bracket connection, effectively preventing the ingress of oil, sand, or dirt, thereby ensuring long-lasting protection.

Application Flexibility

1. All direct-acting and reverse-acting components are universally designed to ensure full interchangeability, granting users seamless adaptability.

2. The spring installation is highly adjustable according to the stroke, thanks to the integrally cast aluminum tray that allows two positions: high and low, simplifying the installation process. Meanwhile, 3, 4, or 6 springs can be configured to customize different spring ranges, catering to diverse operational needs.

3. Each actuator specification is equipped with a variety of spring options, accommodating a wide spectrum of valve sizes, enhancing versatility.

4. Choose from two types of handwheel mechanisms: top-mounted or side-mounted. The side-mounted option can be fully detached from the actuator, ensuring ease of installation.

5. The actuator-valve connection utilizes a compression plate and sleeve structure, promoting straightforward installation and hassle-free on-site packing replacement.

Actuator Options

1. Adjustable Upper Stroke Limiter: Precisely limits the actuator's upward stroke, enhancing control.

2. Adjustable Lower Stroke Limiter: Ensures precise limitation of the downward stroke.

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

5. Low and High-Temperature Actuators: Engineered to operate optimally in specific environmental conditions.

6. Low-Temperature Actuators: Designed for extreme environments, functioning flawlessly in temperatures ranging from -60°C to 70°C.

7. High-Temperature Actuators: Perfectly suited for environments with temperatures from -20°C to 100°C, providing reliable performance.

8. Actuator Locking Device: This essential feature ensures the actuator remains securely locked during maintenance, corresponding to its fail-safe position, guaranteeing safety and reliability.

9. Remote Venting: To ensure utmost safety and efficiency, when utilizing natural gas or other potentially hazardous gases as the actuator's air source, it is imperative to equip the actuator housing with a robust venting device. This precautionary feature is designed to effectively prevent the accumulation of gases, thereby safeguarding your operations and equipment.

10. Additional Control Circuit Accessories: Positionerpositioner, pressure regulator, solenoid valve, limit switch, locking valve, booster: Elevate your control systems to new heights with our comprehensive suite of accessories. These include precision-engineered positioners for accurate positioning, reliable pressure regulators, state-of-the-art solenoid valves, dependable limit switches, robust locking valves, and powerful boosters to enhance performance and operational control.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd. is a prestigious producer of control valves, seamlessly integrating manufacturing, design, sales, and service under one roof. Starting with a strategic vision and rapid growth, SNT is strategically located in Qingdao, Shandong Province, covering a sprawling 42,000 square meters, boasting a state-of-the-art workshop and advanced production facilities. As a high-tech enterprise, we pride ourselves on independent intellectual property rights and the adoption of cutting-edge management and production techniques. Our team comprises over 150 dedicated professionals, with 15% specializing in R&D and 30% holding graduate or higher degrees. With our top-tier production management team and pioneering technology research and development efforts, we produce a substantial volume of premium quality valves widely utilized in petrochemical, oil, and coal chemical sectors. Our sales reached an impressive near 100 billion in 2017.

SNT has proudly earned the TS Special Equipment Manufacturing Certificate and ISO 9001 accreditation, and we hold net qualification certifications from SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our commitment to innovation is underscored by numerous national patents in various technologies. We excel in designing and manufacturing a comprehensive range of valves adhering to ANSI, API, DIN, BS, JIS standards. By amalgamating the best features of globally renowned valves with our independent R&D, we can fabricate an extensive selection, including GLOBE Valves, High-Pressure Boiler Blow-down Valves, High-Performance Butterfly Valves, Angle-Regulating Valves, and Eccentric Rotary Valves.
Our sophisticated valve lineup also includes T Three-Eccentric Center Butterfly Valves, V Ball Valves, High Wear-resistant Ball Valves, High-Pressure Steam Valves, Micro-flow Control Valves, Self-Operated Control Valves, Cryogenic Valves, and others. Our driving mechanisms span manual, power-driven, pneumatic, and hydraulic options. The main components are constructed from materials like A216 WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, with specifications ranging from 1/2" to 120", operating pressures of ANSI 150# to 2500#, and working temperatures from -196ºC to 1100ºC.

Leveraging advanced production technology and a robust quality assurance system, SNT Valves have achieved widespread acclaim across the petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele includes major players like SINOPEC QILU Branch, SINOPEC Qingdao Branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi Branch, PETROCHINA Ningxia Branch, and SINOPEC Changling Branch, among others.

At SNT, we prioritize our users' profitability, striving for excellence in quality and brand reputation. Our impeccable quality assurance and after-sales systems ensure that SNT Valves forge enduring partnerships with our clients, fostering collective success and prosperity.