Long Stroke Pneumatic Diaphragm Actuators with Enhanced Override Surface Material

• Customization: Available
• Brand: Snt
• Power: Pneumatic
• Model NO.: 1-X250
• Adjusted Form: Linear Stem
• 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
• Connection Point of The Push Rod and Bra: a-Type Sealing Ring
• Type: Linear Stem Motion Type 1-X250
• Actuator Size: D465/D640
• Max.Output N N.M: 12348-56484
• Air Supply(Psi): 40.50.60
• Action: Da(Diresct Action)/Ra(Reverse Action)
• Low-Temperature Actuators: Temperatures Ranging From -60 to +70 Degree
• High-Temperature Actuators: Temperatures Ranging From -20 to 100 Degree
• Transport Package: Foam and Carton Box
• Trademark: SNT
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000 Per/Year
• Package Size: 1.00cm * 1.00cm * 0.80cm
• Package Gross Weight: 30.000kg
• Lead Time: 15 days (1 - 50 Pieces) ; To be negotiated ( > 50 Pieces)

Product Description

 

Specifications

 

Type			Linear Stem Motion 1-X250 Series
			D46	D63	D63M
Actuator Size			465	640	640
Max. Output N  N.m		N	12348	28242	56484
		N.M	-	-	-
Air Supply(PSI)			40.50.60
Max.Stroke/Angle			120m	200m	200m
Action			DA(Direct Action) or RA(Reserve Action)
Environment temperature			Standard type:-10°C~+70°C;    Low Temp.service:-40°C~+40°C;  High Temp.service:0~+100°C
Options			Manual handle, Limit SW, Positioner etc.

Product Description

^{The groundbreaking 1-X250 series linear stroke pneumatic diaphragm actuator boasts a unique single-spring structure, tailored for long-stroke control excellence. Unlike its 1-X280 series counterpart, this innovative actuator is engineered for impressive stroke lengths, reaching up to a remarkable 250mm. Compared with standard pneumatic piston actuators, it excels in delivering superior regulation precision while maintaining a remarkably lightweight form. It can also be utilized in swift cut-off applications. When paired with pneumatic control valves, boosters, and cutting-edge quick exhaust valves, it achieves extraordinarily rapid cut-off times, as brisk as just one second.}

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

Extended Service Life

1. The diaphragm cover is made of premium stamped steel with a meticulously galvanized and painted finish, effectively thwarting corrosion. This durable paint is crafted to withstand the rigors of time without peeling. The actuator bracket, constructed from high-grade cast or forged steel, offers unparalleled robustness and reliability, ensuring a steadfast structural integrity.

2. The diaphragm is constructed from resilient neoprene rubber, delivering superior resistance against aging and chemical corrosion while steadfastly retaining its shape even under relentless stress.

3. The push rod is made of robust AISI420, adorned with a nickel-plated surface, ensuring unparalleled smoothness and formidable corrosion resistance.

4. The guide bushing is made from durable aluminum bronze, providing excellent guidance and minimal deformation at low temperatures, thus maintaining optimal air chamber sealing.

5. For the sealing, an A-type sealing ring is expertly positioned below the connection point of the push rod and bracket to effectively thwart the intrusion of oil, sand, or dirt.

Application Flexibility

1. All direct-acting and reverse-acting parts are seamlessly universal to ensure complete interchangeability.

2. The spring installation position is fully adjustable according to the stroke. The integrally cast aluminum tray offers versatile installation positions: high and low, ensuring effortless installation. Meanwhile, 3, 4, or 6 springs can be meticulously configured to craft different spring ranges tailored to specific needs.

3. Each actuator specification is available with a multitude of spring options, seamlessly accommodating a diverse range of valve sizes.

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

5. The connection between the actuator and valve employs a sophisticated compression plate and sleeve structure, facilitating seamless installation and convenient on-site packing replacement.

1-X250 D63 SIDE HANDWHEEL


1-X250 Series overall dimensions & mass




Actuator Options

1. Adjustable Upper Stroke Limiter: A tool to precisely limit the upward stroke of the actuator.

2. Adjustable Lower Stroke Limiter: A device to accurately restrict the downward stroke of the actuator.

3. Top-Mounted Handwheel Mechanism: Engineered for optimal control.

4. Side-Mounted Handwheel Mechanism: Designed for ease of use and flexibility.

5. Low and High-Temperature Actuators: Purpose-built to thrive in specific environmental conditions,ensuring reliability and performance.

6. Low-Temperature Actuators: Our innovative Long Stroke Pneumatic Diaphragm Actuators with Enhanced Override Surface Material are expertly engineered to thrive in diverse environments, particularly those with a wide range of temperatures, ensuring seamless performance in the most challenging conditions. These actuators are uniquely suited to operate efficiently in extreme temperatures, ranging from a frosty -60°C to a balmy 70°C, making them exceptionally versatile.

7. High-Temperature Actuators: Designed to excel in demanding high-temperature environments, these actuators can operate smoothly in conditions spanning from -20°C to a scorching 100°C, ensuring reliability and durability.

8. Actuator Locking Device: This crucial device ensures that the actuator remains securely locked during maintenance, aligning perfectly with the actuator's fail-safe position to guarantee maximum safety and operational security.

9. Remote Venting: With the utilization of natural gas or other potentially hazardous gases as the air source, our actuator housings are equipped with state-of-the-art venting devices. This advanced feature efficiently prevents the accumulation of gas, maintaining a safe and secure environment.

10. Additional Control Circuit Accessories: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster - all meticulously designed to enhance the functionality and adaptability of our actuators, providing comprehensive control and precision for any application.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd., a distinguished leader in the realm of control valves, seamlessly integrates manufacturing, design, sales, and service into a singular powerhouse of excellence. With a steadfast commitment to rapid and high-level advancement, SNT proudly stands in the heart of Qingdao, Shandong Province, sprawling over an expanse of 42,000 square meters, boasting state-of-the-art workshops and cutting-edge production equipment. As a beacon of high-tech innovation, the company holds independent intellectual property rights, enriched by avant-garde management and production expertise sourced globally. Our dynamic team comprises over 150 dedicated professionals, with a striking 15% in R&D and a remarkable 30% holding graduate or higher degrees. This formidable combination of a high-caliber production management team and pioneering research capabilities enables us to manufacture superior quality valves, indispensable to the petrochemical, oil, and coal chemical sectors. Our commitment to excellence is reflected in our sales value, nearly reaching an astounding 100 billion in 2017.

SNT has proudly attained the TS Special Equipment Manufacturing Certificate and ISO 9001 accreditation, alongside the prestigious net qualification certifications from SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our achievements in innovation are further underscored by a multitude of National Patents in various technologies. We specialize in designing and manufacturing an extensive range of valves, compliant with ANSI, API, DIN, BS, and JIS standards. By amalgamating the finest attributes of world-renowned valves with our proprietary research and development, we have successfully engineered an impressive array of valves, including GLOBE, High-Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves, 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 more. Our driving mechanisms encompass manual, power-driven, pneumatic, and hydraulic options. We utilize premium materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, among others. Specifications range from 1/2" to an impressive 120", with working pressures of ANSI 150# to 2500#, and operational temperatures spanning -196ºC to 1100ºC. Our versatility ensures that SNT valves meet the diverse needs of our clients.

With advanced production technology management and a rigorous quality assurance system, SNT Valves have become the preferred choice across diverse industries including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our prestigious clientele features industry giants such as SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Qingdao Refinery, and many more, all of whom trust SNT for unparalleled reliability and performance.

At SNT, we prioritize our users' profitability by committing to exceptional quality and brand excellence. Our comprehensive quality assurance and after-sales systems ensure that SNT valves consistently deliver superior performance, fostering prosperous partnerships with all our valued customers. Let us join hands to create a future of mutual growth and success.