Versatile Pneumatic Piston Actuator Size 1: 1-X400 P250 (S) for Various Applications

• Customization: Available
• Brand: SMC
• Power: Pneumatic
• Model NO.: 1-X400
• Adjusted Form: Regulated Type
• Working Type: Straight Trip
• Pressure: Medium Pressure
• Work Temperature: Normal Temperature
• Acting Type: Double Acting
• Material: Stainless Steel
• Customized: Customized
• Structure: Piston Type
• Size 1: 1-X400 P200(S)
• Size 2: 1-X400 P250(S)
• Size 3: 1-X400 P300(S)
• Size 4: 1-X400 P400(S)
• Size 5: 1-X400 P500(S)
• Mode of Action: Direct Acting/Reverse Acting
• Actuation Mode: Single Acting/Double Acting
• Rated Stroke: 17/25/34/45/60/76/100/120/150/200m
• Air Supply Pressure: 0.3/0.36/0.45MPa
• Spring Range: 0.10~0.20MPa/0.12~024MPa/0.15~0.30MPa
• Top-Mounted Handwheel Specifications: P200(S)/P250(S)/P300(S)
• Side-Mounted Handwheel: P300(S)/P400(S)/P500(S)
• Diaphragm Diameter (mm): 200/250/300/400/500
• Effective Area (Cm²): 230/420/600/920/2480
• Cutoff Times: 1s/2s/3s/4s
• Transport Package: Wooden
• Trademark: SNT
• Origin: China
• HS Code: 8481804090
• Production Capacity: 500000PCS/Year

Product Description

 

Product Parameters

Type			Pneumatic Piston Actuator
Size			1-X400 P200(S)	1-X400 P250(S)	1-X400 P300(S)	1-X400 P400(S)	1-X400 P500(S)
Diaphragm Diameter (mm)			200	250	300	400	500
Effective Area (cm²)			230	420	600	920	2480
Air Supply Pressure			0.30(0.1-0.2) 0.36(0.12-0.24) 0.45(0.15-0.30) MPa
Rated Stroke(mm)			17/25	25/34	34/45	60/76/100	120/150/200
Output Thrust (N)	Single Acting	030(0.1-0.2)Mpa; 036(0.12-0.24)Mpa; 0.45(0.15-0.30)Ppa	2770	4035	6240	11090	17320
			3320	4824	7480	13300	20780
			4160	6036	9350	16620	25970
	Double Acting	0.30 Mpa 0.36Mpa 0.45Mpa	8320	12072	18700	33260	51960
			9970	14484	22450	39900	62340
			12470	18096	28050	49880	77930
^Hysteresis			^≤1%FS(with positioner)- Compliant with GBT4213-97 Standard
Linear			^≤2%FS(with positioner)- Compliant with GBT4213-97 Standard
Air Chamber Seal			Pressure Drop ≤5.0KPa/5min-GBT4213-97 Standard
Service Life			≥100000-Compliant with GBT4213-97 Standard
Envrionment Temperature			Standard Type:-10~+70ººC High Temperature-40~+100ºC
Attachments			Positioner/Filter pressure reducing valve/Speed booster/Solenoid valve pneumatic valve /Stop valve/Speed controller/Limit switch
Optional accessories			Position transmitter/Manual mechanism/Maximum adjustable mechanical limit/Minimum adjustable mechanical limit/Special interface/Specified coating/Connection positioning hole diameter/Push rod extension length/Thread at the connection

 

<sup>The distinguished 1-X400 series linear stroke piston-type pneumatic actuators are expertly crafted using cold-drawn hydraulic pipes, serving as robust cylinder bodies. With sophisticated honing and extrusion methodologies, they significantly curtail the wear of dynamic sealing components, thereby remarkably enhancing the actuator's longevity. When compared to membrane-type actuators of equivalent specifications, they deliver superior thrust. Boasting a minimalist structure coupled with a lightweight and compact design, they epitomize high-performance in pneumatic linear stroke actuation.

Available in both double-acting and single-acting models, the 1-X400 series linear stroke piston-type pneumatic actuators seamlessly integrate with linear stroke valves, facilitating both precise regulation and reliable on-off control. Enhanced with premium accessories like pneumatic control valves, quick exhaust valves, and pneumatic actuators, they ensure rapid cutoffs with astonishing swiftness, boasting cutoff times of 1S, 2S, 3S and 4S, among other variants.</sup>

Single-action (S.A.) actuators feature a spring-opposed piston mechanism activated by air pressure. They provide the distinct advantage of a straightforward fail-safe operation: in the event of air pressure failure, the compressed spring load supersedes the pressure load, effortlessly maneuvering the stem to either open or close the valve port, as per the specific fail-safe action required, ensuring excellent stability regardless of variations in the plug load.

 

 

 

Conversely, double-action (D.A.) actuators present an alternative, though they exhibit diminished net thrusts. Their overall dimensions increase progressively with the rise in air pressure supply and stroke demands.

Double-action actuators equipped with a return spring offer a balanced solution: while the full thrust of air pressure on one side of the piston is partially counteracted by a compressed spring and complemented by the air pressure on the opposite side of the piston. Thus, to achieve a fail-safe action, there is no necessity for complex and often unreliable pneumatic systems. Furthermore, the net thrust of air pressure is only marginally diminished by the spring's thrust, ensuring efficiency.

 

Product Description

DESIGN DETAILS

PRESSURE/TEMPERATURE RATING
The cylinder's rated supply pressure is 8 bar, which also represents the maximum pressure for maintaining the tightness of the sliding seals of the piston. Despite this, each actuator undergoes rigorous hydrostatic testing at 10.5 bar before leaving our facility. For continuous service at 8 bar, specific temperature limits are provided in the materials table.

ACTUATOR BODY
The cylinder is precision-crafted from a steel tube, ensuring durability and performance.
Its internal surface is expertly lapped, chromium-plated, and polished to perfection.
The two heads are cast in aluminum or steel, engineered for various assembly shapes to cater to specific operational needs, such as valve integration or

pivoting assemblies. Options include a fork for adjustable assemblies, commonly used with butterfly valves,
or a flange for robust connections to valve yokes, which is ideal for actuating globe or angle valves.

PISTON
Crafted from high-strength steel, the piston is equipped with either one (S.A.) or two (D.A.) rubber sealing rings, paired with two (S.A.) or one (D.A.) Teflon-guided skids for optimal performance.

STEM
The stem originates from a stainless steel rod, precisely machined, ground, rolled, and threaded at the external end. It connects seamlessly to the valve stem through a two-piece block that clamps the threaded ends for secure operation.
Guided by a double bronze bushing in the lower head, a felt ring wipes the stem clean, supported by a sealing ring to prevent leakage, except in the case of S.A. direct-acting actuators, where it is unnecessary.

Customised execution on request

SNT excels in crafting tailored solutions to accommodate a diverse array of custom requirements, including:

• On-off or modulating execution for precise control
• Adaptations for offshore or highly corrosive environments
• Bespoke coupling yokes designed to match any valve topwork
• Incorporation of mechanical stop screws for precise control in opening, closing, or both directions
• Fast-acting solutions for HIPPS or Emergency Shutdown scenarios
• Integrations with dampers or unique integral quick exhaust valves
• Innovative subsea design

For other bespoke requirements, please consult our sales team for a detailed technical evaluation.

Controls

Our 1-X400 actuators are available with comprehensive control component packages, meticulously tailored to meet customer specifications and ensure compliance with technical standards for a range of industrial control applications, including on/off, modulating, or ESD services.
These controls are the result of SNT's extensive expertise and long-standing experience in the field of valve automation, ensuring unparalleled precision and reliability.






 

Product Feature

1-X400 - A Mark of Excellence in Engineering SERIES CYLINDER PNEUMATIC ACTUATORS - Engineered for Precision
DOUBLE ACTING - Delivers Power and Performance



 

1	BOLT	11	CYLINDER	21	STROKE PLATE
2	ACTUATOR YOKE	12	BOLT	22	STROKE INDICATOR
3	STEM CONNECTOR	13	UPPER CYLINDER COVER	23	SCREW
4	ANTI-ROTATION PLATE	14	WASHER	24	FLANGE
5	SCREW	15	NUT	25	SEAL RING
6	ACTUATOR STEM	16	LIFTING BOLT	26	O-RING
7	BOLT	17	WASHER	27	GUIDING BUSHING
8	LOWER CYLINDER COVER	18	NUT	28	O-RING
9	O-RING	19	O-RING	29	O-RING
10	PISTON	20	GUIDING	30	SCREW

1-X400 - Crafting Innovation with Every Detail SERIES CYLINDER PNEUMATIC ACTUATORS - Unmatched Reliability
SINGLE ACTING (DIRECT - AIR TO CLOSE) - Simplified for Efficiency



 

1	BOLT	21	NUT	41	SCREW
2	ACTUATOR YOKE	22	O-RING	42	STROKE INDICATOR
3	STEM CONNECTOR	23	SCREW	43	O-RING
4	ANTI-ROTATION PLATE	24	YOKE	44	WASHER
5	SCREW	25	O-RING	45	WASHER
6	ACTUATOR STEM	26	LEAD SCREW	46	LOCKNUT
7	BOLT	27	BOLT	47	BEARING
8	LOWER CYLINDER COVER	28	BEVEL GEARBOX	48	PIN
9	SCREW	29	O-RING	49	BEARING STEM
10	SPRING GUIDING	30	GUIDING	50	PIN
11	NUT	31	O-RING	51	O-RING
12	SPECIAL NUT	32	SPRING SEAT	52	SEAL RING
13	WASHER	33	BEARING	53	FLANGE
14	BOLT	34	PIVOT	54	O-RING
15	CYLINDER	35	BEARING	55	O-RING
16	SPRING	36	BOLT	56	GUIDING BUSHING
17	PISTON	37	WASHER	57	SCREW
18	UPPER CYLINDER COVER	38	NUT	58	ANTI-ROTATION PLATE
19	WASHER	39	AIR VENT	59	PIN
20	NUT	40	STROKE PLATE

1-X400 - The Future of Pneumatic Technology SERIES CYLINDER PNEUMATIC ACTUATORS - Designed for Excellence

SINGLE ACTING (REVERSE - AIR TO OPEN) - Built for Uncompromising Quality

1	BOLT	16	WASHER	31	SCREW
2	ACTUATOR YOKE	17	UPPER CYLINDER COVER	32	O-RING
3	STEM CONNECTOR	18	SCREW	33	O-RING
4	ANTI-ROTATION PLATE	19	SPRING GUIDING	34	GUIDING BUSHING
5	SCREW	20	LIMIT ROD	35	PLUG
6	ACTUATOR STEM	21	LIFTING BOLT	36	PLUG
7	BOLT	22	AIR VENT	37	PIN
8	WASHER	23	O-RING	38	SEAL RING
9	LOWER CYLINDER COVER	24	O-RING
10	CYLINDER	25	O-RING
11	PISTON	26	GUIDING
12	NUT	27	STROKE PLATE
13	SPRING	28	STROKE INDICATOR
14	BOLT	29	SCREW
15	NUT	30	FLANGE

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Company Profile

<sup>SNT Machinery (Qingdao) Co., Ltd. is a distinguished producer of control valves, seamlessly integrating manufacturing, design, sales, and services into one cohesive entity. Boasting a high starting point and rapid development, SNT is strategically situated in the vibrant city of Qingdao, Shandong Province, sprawling across a vast 42,000m2 area equipped with state-of-the-art workshops and production facilities. As a high-tech enterprise, SNT proudly holds independent intellectual property rights and embraces advanced management and production practices imported from around the globe. With a dedicated team exceeding 150 professionals, 15% of whom are R&D specialists and 30% holding graduate degrees or higher, SNT thrives on a foundation of high-quality production management and pioneering technological research and development. Our impressive output includes a vast array of high-quality valves, extensively utilized across the petrochemical, oil, and coal chemical industries, culminating in a remarkable sales value of nearly 100 billion in 2017.

SNT has proudly attained the TS special equipment manufacturing certificate and ISO 9001 certification, further bolstered by the net qualification certificates from industry giants SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Additionally, we have secured numerous National Patents across various technologies. Our robust capabilities allow us to design and manufacture an extensive range of valves according to ANSI, API, DIN, BS, and JIS standards. By integrating the best features of renowned valves from across the globe with our autonomous research and development, SNT can craft a diverse portfolio of valves. These include GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, as well as T Three-eccentric Center Butterfly Valves.
Our impressive lineup extends to V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves, among others. Our versatile driving forms encompass manual, power-driven, pneumatic, and hydraulic options, ensuring adaptability for various applications. The main materials utilized in our valves include A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, among others. Our specifications range from 1/2" to 120", with working pressures from ANSI 150# to 2500#, and operating temperatures spanning -196ºC to 1100ºC, underscoring our commitment to excellence and reliability.

Leveraging our cutting-edge production technology management and stringent quality assurance system, SNT Valves have found widespread application in the petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele includes industry leaders such as SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Changling branch, and Jinan branch, among others, solidifying our reputation as a trusted partner in excellence.

At SNT, we prioritize our user's profits, wholeheartedly dedicating ourselves to establishing exceptional quality and a reputable brand. Our impeccable quality assurance and comprehensive after-sales systems ensure that SNT valves seamlessly collaborate with all our customers to foster mutual prosperity and success.</sup>