Efficient Long Stroke Pneumatic Diaphragm Actuators with Durable 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

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 a marvel of engineering, showcasing its highly efficient single-spring structure. This series stands out in the realm of long-stroke control, boasting an impressive maximum stroke of up to 250mm, distinguishing it from the 1-X280 series. With pneumatic piston actuators, this product delivers exceptional regulation precision while maintaining a sleek, lightweight design. It impressivelyfunctions in cut-off applications when paired with pneumatic control valves, boosters, and quick exhaust valves, achieving remarkably fast cut-off times of just 1 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

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: Suitable for environments with temperatures ranging from Operating efficiently even in the most extreme conditions, our actuators perform superbly in a temperature range of -60°C to 70°C.

7. High-Temperature Actuators: Perfectly crafted to thrive in demanding conditions, these actuators excel in environments with temperatures spanning from -20°C to 100°C.

8. Actuator Locking Device: Guaranteeing safety and reliability during maintenance, the actuator remains securely locked, aligned with its fail-safe position, ensuring peace of mind and operational efficiency.

9. Remote Venting: For environments where natural gas or other hazardous gases serve as the actuator's air source, the actuator housing is thoughtfully designed with a venting device, ingeniously preventing gas accumulation and ensuring a safe working environment.

10. Additional Control Circuit Accessories: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster: Enhance the actuator's functionality and adaptability with these essential accessories, ensuring optimal performance in every application.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd., a renowned leader in the control valve industry, seamlessly integrates manufacturing, design, sales, and service into one comprehensive package. Founded on a foundation of high standards and rapid development, SNT is strategically located in Qingdao, Shandong Province, sprawling over 42,000 square meters. The facility boasts state-of-the-art workshops and production equipment. As a high-tech enterprise with its own intellectual property rights, SNT has imported cutting-edge management and production techniques. With a dynamic team of over 150 employees, where 15% are dedicated R&D specialists and 30% boast graduate-level or higher degrees, SNT thrives on a blend of exceptional production management and pioneering research and development. This synergy enables the mass production of premium quality valves, pivotal for industries like petrochemical, oil, and coal chemical sectors, achieving a remarkable sales value nearing 100 billion in 2017.

SNT proudly holds the TS special equipment manufacturing certificate and ISO 9001, along with the coveted net qualification certificate from industry giants SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess is further exemplified by numerous National Patents. We offer comprehensive design and manufacturing capabilities for a spectrum of valves adhering to ANSI, API, DIN, BS, and JIS standards. By amalgamating the best features from globally renowned valves and leveraging our independent R&D, we produce a diverse range of valves, 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 product line features V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, etc. These valves come with various driving forms, including manual, power-driven, pneumatic, and hydraulic operations. Key components are crafted from robust materials like A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, ensuring exceptional durability. Our specifications range from 1/2" to 120", with working pressures from ANSI 150# to 2500#, and operating temperatures from -196ºC to 1100ºC.

Thanks to superior production technology management and a stringent quality assurance system, SNT valves are indispensable across sectors such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele includes major industry players like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, as well as others such as SINOPEC Changling branch and Jinan branch.

At SNT, we prioritize the success of our users, dedicating ourselves to the pursuit of superior quality and brand excellence. Our robust quality assurance and after-sales systems ensure that SNT valves forge prosperous partnerships with all our valued customers, driving mutual growth and success.