Long Stroke Pneumatic Diaphragm Actuators with High-Quality Diaphragm 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

^{Introducing the 1-X250 series linear stroke pneumatic diaphragm actuator, a marvel of engineering with a cutting-edge single-spring structure. This series stands tall with its primary design focused on long-stroke control, boasting an impressive maximum stroke capability of up to 250mm. Let it be your choice! When compared to traditional pneumatic piston actuators, this actuator excels with superior regulation precision and a sleek, lightweight design. It's a perfect fit for your needs!Furthermore, it can be efficiently utilized in high-demand cut-off applications. When paired with advanced pneumatic control valves, powerful boosters, and quick exhaust valves, it achieves remarkable fast cut-off times as brief as 1 second, ensuring peak performance and reliability!}

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: Designed for versatility, our Long Stroke Pneumatic Diaphragm Actuators are ideal for environments with temperatures ranging from -60°C to 70°C, offering robust performance in extreme conditions.

7. High-Temperature Actuators: Specifically crafted to withstand environments where temperatures vary from -20°C to a searing 100°C, ensuring reliable operation in high-heat applications.

8. Actuator Locking Device: This essential feature ensures the actuator remains securely locked during maintenance, maintaining the crucial fail-safe position of the actuator.

9. Remote Venting: When utilizing natural gas or other potentially hazardous gases as the actuator's air source, it is imperative that the actuator housing is equipped with a sophisticated venting device to effectively prevent any dangerous gas accumulation.

10. Additional Control Circuit Accessories: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, booster: These high-performance accessories enhance the actuator's functionality, precision, and safety.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd stands as a distinguished producer of control valves, uniquely integrating manufacturing, design, sales, and services into a seamless operation. With a high starting point and rapid development, SNT is strategically located in Qingdao, Shandong Province, sprawling over an impressive 42,000 square meters. Our facility is equipped with state-of-the-art workshops and cutting-edge production equipment. Recognized as a high-tech enterprise, we proudly hold independent intellectual property rights and benefit from imported advanced management and production expertise. Our team comprises over 150 dedicated professionals, with R&D specialists representing 15% and 30% of our workforce being graduates or holding higher degrees. Through our commitment to quality production management and pioneering technology research and development, we are able to produce vast quantities of superior quality valves utilized across petrochemical, oil, and coal chemical industries. In 2017, our sales value soared to nearly 100 billion.

SNT has achieved the prestigious TS special equipment manufacturing certificate and ISO 9001 certification, and proudly holds the net qualification certificate from industry giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Furthermore, we boast numerous National Patents in various technologies. Our extensive capabilities enable us to design and produce a comprehensive range of valves in accordance with ANSI, API, DIN, BS, JIS standards. By amalgamating the best features of renowned valves worldwide with our independent research and development, we have mastered the production of diverse valve types, 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 portfolio extends to V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, and more. The driving mechanisms we offer encompass manual operation, power-driven, pneumatic, and hydraulic drive. For main parts, we utilize premium materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, among others. Specifications range from 1/2" to 120", with working pressures spanning ANSI 150# to 2500# and operational temperatures ranging from -196ºC to 1100ºC.

Thanks to our advanced production technology management and rigorous quality assurance system, SNT valves have become an industry staple and are extensively used in petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele includes SINOPEC's QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA's Guangxi branch, PETROCHINA Ningxia branch, and many more, solidifying our trusted reputation across the sector.

At SNT, we prioritize our users' profitability, dedicating ourselves to the pursuit of outstanding quality and brand excellence. Our impeccable quality assurance and after-sales systems create a strong partnership with all our customers, driving forward mutual prosperity and success.