High-Performance Long Stroke Pneumatic Diaphragm Actuators with Galvanized Finish

• 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 from SNT Machinery (Qingdao) Co., Ltd. This exceptional actuator employs an innovative single-spring structure, setting it apart from the 1-X280 series. It is expertly crafted for those demanding long-stroke control tasks, boasting an impressive maximum stroke length of up to 250mm. when compared to traditional pneumatic piston actuators, our actuator stands out with its superior regulation precision and its remarkably lightweight design.This actuator can be expertly utilized in cut-off applications, especially when paired with pneumatic control valves, boosters, and quick exhaust valves. Such a combination ensures rapid cut-off times, impressively as short as just 1 second, making it the perfect choice for efficiency-driven 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 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: These state-of-the-art actuators are meticulously engineered to thrive in diverse environments where temperatures vary from -60°C to a mild 70°C, ensuring optimal performance and reliability.

7. High-Temperature Actuators: Expertly designed to operate in conditions with temperature ranges from -20°C up to a scorching 100°C, making them ideal for high-demand settings.

8. Actuator Locking Device: This innovative device secures the actuator in a locked position during maintenance procedures, aligning perfectly with the fail-safe position to ensure safety and efficiency.

9. Remote Venting: In scenarios where natural gas or other potentially hazardous gases serve as the actuator's air source, it is crucial that the actuator housing features a sophisticated venting device to effectively prevent the accumulation of gases.

10. Additional Control Circuit Accessories: Positioner, pressure regulator, solenoid valve, limit switch, locking valve, and booster - these essential components provide enhanced control and precision for your actuator system.

 

Production application

Company Profile

SNT Machinery (Qingdao) Co., Ltd. stands at the forefront of innovation as a leading producer of control valves, seamlessly merging manufacturing, design, sales, and customer service into a unified powerhouse. With a strong foundation and rapid growth, SNT is strategically located in the bustling city of Qingdao, Shandong province, covering an expansive area of 42,000 square meters. Our state-of-the-art facilities boast modern workshops and cutting-edge production equipment. As a high-tech enterprise, we pride ourselves on holding independent intellectual property rights while leveraging advanced management practices and production expertise imported from global leaders. Our dedicated team of over 150 employees includes 15% R&D specialists and 30% graduates with advanced degrees. Harnessing the prowess of our high-caliber production management team and groundbreaking technology research, we produce vast arrays of superior quality valves utilized extensively in the petrochemical, oil, and coal chemical sectors. Notably, our sales reached an impressive value nearing 100 billion in 2017.

SNT has proudly achieved the prestigious TS special equipment manufacturing certificate and ISO 9001 accreditation. We have further secured the vital net qualification certificates from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our commitment to innovation is underscored by numerous national patents across a spectrum of technologies. We are proficient in designing and manufacturing an extensive range of valves in accordance with ANSI, API, DIN, BS, and JIS standards. Drawing on the strengths of iconic valve designs from around the globe, coupled with our own independent research, we are adept at producing a wide variety of valves including GLOBE, high-pressure boiler blow-down valves, high-performance butterfly valves, angle-regulating valves, eccentric rotary valves, and 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, and self-operated control valves, among others. Additionally, we provide cryogenic valves designed for precision and reliability. Our driving mechanisms encompass manual, power-driven, pneumatic, and hydraulic operations. To ensure durability and performance, main parts are made from premium materials such as A216 WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. We offer a comprehensive range of specifications from 1/2" to 120", with working pressures from ANSI 150# to 2500#, and can accommodate working temperatures spanning from -196ºC to 1100ºC.

Thanks to our advanced production technology management and stringent quality assurance systems, SNT valves have earned a reputation for excellence and reliability. Our products are prominently utilized across numerous sectors, including petrochemical, oil, steel & iron, paper manufacturing, and power station industries. We are honored to serve esteemed clients such as SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, and PETROCHINA Ningxia branch, among others. Our continued partnerships with industry leaders like SINOPEC and CNOOC underscore our commitment to quality and innovation.

We prioritize our users' prosperity, dedicating ourselves to upholding unparalleled quality and cultivating a distinguished brand reputation. Our robust quality assurance and comprehensive after-sales systems ensure that SNT valves thrive in partnership with our clients, driving mutual success and creating lasting prosperity.