Efficient Long Stroke Pneumatic Diaphragm Actuators with Stamped Steel Cover

• 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 1-X250 series linear stroke pneumatic diaphragm actuator is engineered with a cutting-edge single-spring structure. It stands out in its class when compared to the 1-X280 series, as it is specifically tailored for long-stroke control applications. Boasting an impressive maximum stroke capability of up to 250mm, it offers unparalleled precision and flexibility in operation. when measured against traditional pneumatic piston actuators, this innovative actuator ensures exceptionally high regulation precision while maintaining a remarkably lightweight design. Furthermore, it can be effectivelydeployed in cut-off scenarios when paired with pneumatic control valves, boosters, and quick exhaust valves. This dynamic combination achieves rapid cut-off times that can be as swift as an astonishing 1 second, ensuring peak efficiency and reliability in performance.}

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 diaphragm cover is made of stamped steel with a galvanized and painted surface for corrosion resistance. The paint is designed to be durable and not easily peel off. The actuator bracket is made from cast or forged steel, ensuring a robust and reliable structure.

2. The diaphragm is constructed from neoprene rubber, offering excellent resistance to aging, chemical corrosion, and maintaining its shape under continuous stress.

3. The push rod is made of AISI420 with a nickel-plated surface, providing high smoothness and corrosion resistance.

4. The guide bushing is made from aluminum bronze, ensuring good guidance and minimal deformation at low temperatures, which maintains good air chamber sealing.

5. For the sealing, an A-type sealing ring is used below the connection point of the push rod and bracket to prevent oil, sand, or dirt from penetrating.

Application Flexibility

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

2. The spring installation position can be adjusted according to the stroke. The integrally cast aluminum tray offers two installation positions: high and low, making installation convenient. Meanwhile, 3, 4, or 6 springs can be configured to achieve different spring ranges.

3. Each specification of the actuator comes with various spring options, accommodating a wide range of valve sizes.

4. There are two types of handwheel mechanisms: top-mounted and side-mounted. The side-mounted handwheel, in particular, can be completely detached from the actuator, making installation very convenient.

5. The connection between the actuator and the valve uses a compression plate and sleeve structure, facilitating easy installation and convenient on-site replacement of packing.

1-X250 D63 SIDE HANDWHEEL


1-X250 Series overall dimensions & mass




Actuator Options

1. Adjustable Upper Stroke Limiter: Used to limit the upward stroke of the actuator.

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

3. Top-Mounted Handwheel Mechanism

4. Side-Mounted Handwheel Mechanism

5. Low and High-Temperature Actuators: Designed for specific environmental conditions.

6. Low-Temperature Actuators: The ideal choice for challenging environments, these actuators excel within temperature ranges extending from -60°C to 70°C, ensuring reliability and performance under extreme conditions.

7. High-Temperature Actuators: Specifically engineered for environments with temperature spans from -20°C to 100°C, providing outstanding adaptability under high heat scenarios.

8. Actuator Locking Device: This essential feature guarantees that the actuator remains securely locked during maintenance activities, aligning with its fail-safe position to enhance operational safety.

9. Remote Venting: Designed for when natural gas or other volatile gases fuel the actuator, the housing is equipped with a venting mechanism to avert hazardous gas buildup, ensuring safety and efficiency.

10. Additional Control Circuit Accessories: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster-these components are integral to achieving precise control, optimizing performance, and enhancing the actuator's versatility.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd is a trailblazing producer of control valves, seamlessly integrating manufacturing, design, sales, and service into a cohesive powerhouse. Established with a robust foundation and rapidly accelerating development, SNT proudly resides in the vibrant city of Qingdao, Shandong province, sprawled across an impressive 42,000 square meters. Our cutting-edge facility is adorned with modern workshops and state-of-the-art production equipment. As a high-tech enterprise, we boast independent intellectual property rights and draw upon sophisticated management and production expertise from around the globe. Our team comprises over 150 dedicated professionals, with R&D specialists making up 15% of our workforce, and 30% holding graduate degrees or higher. Our commitment to excellence is demonstrated through our high-quality production management team and our pioneering technology research and development. We manufacture vast quantities of superior valves trusted by industries such as petrochemical, oil, and coal chemicals. In 2017 alone, our sales soared to nearly 100 billion.

SNT proudly holds the TS special equipment manufacturing certificate and ISO 9001 accreditation, having also secured the net qualification certificate from industry giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our innovative spirit is reflected in the numerous National Patents we've acquired. We expertly design and manufacture a comprehensive range of valves that adhere to ANSI, API, DIN, BS, and JIS standards. By combining the esteemed qualities of renowned valves worldwide with our independent research, we offer an unmatched selection, including 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 expansive valve portfolio also features V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. We offer diverse driving mechanisms such as manual, power-driven, pneumatic, and hydraulic. Our primary components use robust materials including A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. These valves accommodate specifications from 1/2" to 120", withstanding pressures from ANSI 150# to 2500#, and operating temperatures from -196ºC to 1100ºC.

Elevated by our advanced production technology management and stringent quality assurance system, SNT Valves have become indispensable tools across industries like petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our prestigious clientele includes reputable branches such as SINOPEC QILU, SINOPEC Qingdao, CNOOC Huizhou Refinery, PETROCHINA Guangxi, PETROCHINA Ningxia, and numerous others, underscoring our reach and reliability.

We passionately prioritize our users' prosperity, dedicating ourselves to crafting exceptional quality and a distinguished brand. SNT's impeccable quality assurance and comprehensive after-sales service systems ensure our valves foster enduring partnerships and shared success with all our clientele, paving the way for mutual growth and prosperity.