Long Stroke Pneumatic Diaphragm Actuators with Reliable 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

^{Introducing the 1-X250 series linear stroke pneumatic diaphragm actuator by SNT Machinery (Qingdao) Co., Ltd., a masterpiece of engineering excellence. This actuator is meticulously crafted with a single-spring structure, offering unparalleled performance. While maintaining a lightweight design, it is primarily engineered for long-stroke control, boasting an impressive maximum stroke length of up to 250mm. When compared to conventional pneumatic piston actuators, the 1-X250 series stands out, delivering superior regulation precision and ease of handling. Its innovative design ensures that whether used incut-off applications or integrated with pneumatic control valves, boosters, and quick exhaust valves, it achieves remarkable efficiency. Experience rapid cut-off times as brief as 1 second, making it the ideal choice for high-demand environments.}

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

Service Life

1. The diaphragmis constructed with exceptional precision, cover is made of stamped steel with a galvanized and painted surface for corrosion resistance. This high-quality paint is crafted to endure, ensuring that it does not easily peel off, maintaining the actuator's pristine look. The actuator bracket, made from robust cast or forged steel, guarantees a structure that is both strong and reliable, perfect for demanding applications.

2. The diaphragmis crafted from neoprene rubber,a material known for its exceptional resistance to aging and chemical corrosion, ensuring it maintains its form even under continuous stress.

3. The push rodis meticulously rod is made of AISI420 with a nickel-plated surface, providing superior smoothness and exceptional corrosion resistance, perfect for long-lasting performance.

4. The guide bushingis engineered bushing is made from aluminum bronze, ensuring excellent guidance and minimal deformation at low temperatures, thus maintaining superb air chamber sealing to enhance performance stability.

5. For the sealingprocess, an A-type sealing ring is employed, at the juncture of the push rod and bracket to prevent the intrusion of oil, sand, or dirt, safeguarding the actuator's internal components.

Application Flexibility

1. Universality of all direct-acting and reverse-acting parts to ensure seamless interchangeability, making it versatile for various applications.

2. The spring installation position offers adjustable flexibility according to stroke needs. The integrally cast aluminum tray provides dual installation positions - high and low, ensuring a hassle-free setup. Meanwhile, 3, 4, or 6 springs can be meticulously configured to achieve a wide range of spring capabilities, catering to diverse operational requirements.

3. Each actuator specification comes equipped with various spring options, making it adaptable to a wide variety of valve sizes, offering unrivaled flexibility in application.

4. Handwheel mechanisms come in two types: top-mounted and side-mounted. The innovative side-mounted handwheel is fully detachable from the actuator, greatly simplifying the installation process.

5. The connection between the actuator and the valve employs a compression plate and sleeve structure, facilitating straightforward installation and convenient on-site replacement of packing to maintain optimal performance.

1-X250 D63 SIDE HANDWHEEL


1-X250 Series overall dimensions & mass




Actuator Options

1. Adjustable Upper Stroke Limiter: Tailored to define the upwards stroke limits of the actuator, enhancing control.

2. Adjustable Lower Stroke Limiter: Specifically designed to delineate the downward stroke limits of the actuator.

3. Top-Mounted Handwheel Mechanism: A strategic design for user convenience and operational efficiency.

4. Side-Mounted Handwheel Mechanism: Offers flexibility in installation and maintenance.

5. Low and High-Temperature Actuators:: Designed to perform optimally under specific environmental conditions, ensuring reliability and durability..

6. Low-Temperature Actuators: Ideally crafted for use in environments where temperatures fluctuate from -60°C to 70°C, ensuring optimal performance even in the most frigid or temperate conditions.

7. High-Temperature Actuators: Expertly designed for conditions spanning from -20°C to 100°C, perfect for high-heat settings.

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

9. Remote Venting: When utilizing natural gas or other potentially hazardous gases as the actuator's air source, the actuator housing should be fitted with a reliable venting device, effectively preventing gas build-up and ensuring safety.

10. Additional Control Circuit Accessories: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster, all meticulously designed to offer precise control and efficiency.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd, a distinguished leader in the production of control valves, seamlessly combines manufacturing prowess, innovative design, sales expertise, and comprehensive services. Situated in the vibrant city of Qingdao, Shandong province, our expansive 42,000 square meters facility is a hub of modernity, equipped with state-of-the-art workshops and cutting-edge production equipment. As a high-tech enterprise with proprietary intellectual property rights, we draw upon an impressive array of advanced management and production experiences from around the globe. Boasting an agile team of over 150 dedicated professionals, 15% of which are innovative R&D specialists, and 30% are accomplished graduates or hold advanced degrees, SNT stands at the forefront of excellence. Our commitment to quality and innovation has enabled us to produce a wide array of high-quality valves integral to petrochemical, oil, and coal chemical industries. With a robust production management team and pioneering technology, we achieved a remarkable sales value nearing 100 billion in 2017.

SNT has proudly secured the TS special equipment manufacturing certificate and ISO 9001 accreditation, in addition to the net qualification certificates from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess is further underscored by numerous National Patents. We specialize in designing and manufacturing an extensive range of valves in adherence to ANSI, API, DIN, BS, JIS standards. By integrating the best attributes of renowned global valves with our own innovative research and development, we have mastered the creation of diverse valve types, including 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 expert craftsmanship extends to an impressive array of valves such as V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, among others. We offer various driving forms, including manual, power-driven, pneumatic, and hydraulic operations. The main components are crafted from top-grade materials like A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. Our specification range spans from 1/2" to 120", accommodating working pressures of ANSI 150# to 2500# and temperatures ranging from an icy -196ºC to a scorching 1100ºC.

Harnessing advanced production technology management and a stringent quality assurance system, SNT valves have become indispensable in a multitude of industries, including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele encompasses major entities such as SINOPEC QILU and Qingdao branches, CNOOC Huizhou Refinery, PETROCHINA Guangxi and Ningxia branches, SINOPEC Changling, and Jinan branches, among others.

We prioritize our users' profitability and dedicate ourselves to establishing an esteemed reputation for exceptional quality and a premium brand. Our impeccable quality assurance and comprehensive after-sales systems ensure that SNT valves foster prosperous partnerships with our valued customers, paving the way for shared success and growth.