Lightweight Pneumatic Piston Actuator Size 1: 1-X400 P250 (S) for Easy Handling

• 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 1-X400 series linear stroke piston-type pneumatic actuators are engineered with precision, featuring cold-drawn hydraulic pipes as their cylinder bodies that transform durability and performance. Through meticulous honing and extrusion, these actuators minimize wear, significantly enhancing the longevity of dynamic sealing elements. Compared to membrane-type actuators of the same specifications, they deliver superior thrust. Their refined structure, lightweight design, and compact dimensions make them the epitome of high-performance pneumatic linear stroke actuators.

Available in both double-acting and single-acting configurations, the 1-X400 series actuators seamlessly integrate with linear stroke valves for precise regulation or on-off control. For rapid cutoffs, the actuators come equipped with essential accessories such as pneumatic control valves, quick exhaust valves, and more, enabling impressive cutoff times of 1S, 2S, 3S, and 4S, offering versatility across various operational levels.</sup>

Single-action (S.A.) actuators are designed with a spring-opposed piston activated by air pressure, presenting the advantage of a straightforward fail-safe action. In the event of air pressure failure, the compressed spring effortlessly overcomes pressure load, moving the stem to either open or close the valve port, depending on the desired fail-safe action, delivering remarkable stability even amidst fluctuating plug loads. This ensures reliability where stability is essential.

 

 

 

Conversely, compared to double-action (D.A.) actuators, single-action models offer lower net thrusts, with dimensions increasing as supplied air pressure and required stroke amplify.

Double-action actuators, enhanced with return springs, present a well-balanced solution: the full thrust of air pressure on one side of the piston is counterbalanced by a combination of a compressed spring and air pressure on the opposite side, creating an equilibrium within the piston. Thus, achieving a fail-safe action is simplified, eliminating the need for complex and less reliable pneumatic apparatuses, while ensuring that the net thrust of air pressure is only partially diminished by the spring's counterforce, maintaining efficiency.

 

Product Description

DESIGN DETAILS

PRESSURE/TEMPERATURE RATING
Our state-of-the-art lightweight pneumatic piston actuator operates efficiently at a rated supply pressure of 8 bar, which is also the threshold for the tightness of the sliding seals of the piston. Although, for your peace of mind, each actuator undergoes rigorous hydrostatic testing at 10.5 bar before it is dispatched. The temperature range suitable for continuous operation at 8 bar is elegantly detailed in our materials table.

ACTUATOR BODY
The cylindrical body is expertly crafted from a precision steel tube, ensuring top-tier quality and durability.
Its interior is meticulously lapped, chromium-plated, and polished to a fine sheen, ensuring smooth operation and longevity.
The two ends are skillfully cast from aluminum or steel, available in various shapes to seamlessly adapt to your assembly needs on valves or specific operations.

Easily integrate with a fork on the upper or lower head for pivoting assemblies, ideal for efficiently actuating butterfly valves.
Additionally, a flange option is available for secure, stable assembly on valve yokes, enhancing performance. This is particularly advantageous for actuating globe or angle valves with precision.

PISTON
Our piston, crafted from high-strength steel, is fitted with one (S.A.) or two (D.A.) robust rubber sealing rings. It features two (S.A.) or one (D.A.) loaded-Teflon guiding skid, ensuring reliable performance and minimal friction.

STEM
The stem is a marvel of engineering, precisely machined from stainless steel, then expertly ground, rolled, and threaded at the external end. It connects seamlessly with the valve stem via a robust two-piece, bored and threaded block, securely clamping the screwed ends of both stems.
Guided by a dual bronze bushing housed in the lower head, the stem is also equipped with a felt ring to maintain cleanliness and a sealing ring (an exception applies to S.A. direct-acting actuators) to effectively prevent any leakage, ensuring optimal performance.

Customized execution on request

SNT Machinery is dedicated to innovation, consistently crafting special designs to meet a multitude of customized requirements, such as:

• Specialized on-off or modulating execution to enhance operational efficiency
• Custom solutions designed for offshore or environments with high corrosiveness
• Tailor-made coupling yokes designed to fit virtually any valve topwork, ensuring versatility
• Options for execution with mechanical end-stop screws for precise control in opening or closing, or both directions
• Fast-acting execution tailored for HIPPS or Emergency Shutdown applications
• Execution incorporating dampers or specialized integral quick exhaust valves for optimized performance
• Subsea designs engineered for underwater applications offer reliable performance in challenging conditions

For technical evaluations of your unique requirements, please connect with our sales department. We are eager to assist in tailoring a solution for you.

Controls

Our 1-X400 actuators can be delivered fully outfitted with tailored control component packages, meticulously crafted to meet customer specifications and technical demands for diverse industrial control scenarios, including on/off, modulating, or ESD services.
These controls are the fruit of SNT's unparalleled technical skill and extensive experience in valve automation, promising reliability and superior performance.






 

Product Feature

1-X400 SERIES CYLINDER PNEUMATIC ACTUATORS
DOUBLE ACTING



 

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 SERIES CYLINDER PNEUMATIC ACTUATORS
SINGLE ACTING (DIRECT - AIR TO CLOSE)



 

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 SERIES CYLINDER PNEUMATIC ACTUATORS

SINGLE ACTING (REVERSE - AIR TO OPEN)

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. stands as a beacon of innovation in the realm of control valves. We expertly weave manufacturing, design, sales, and customer service into a seamless tapestry of excellence. With our headquarters nestled in Qingdao, Shandong province, our expansive 42,000 square meters facility houses state-of-the-art workshops and cutting-edge production equipment. As a high-tech enterprise holding independent intellectual property rights, we have seamlessly integrated world-class management and production methodologies. Our dedicated team exceeds 150 professionals, with 15% specializing in research and development, and 30% possessing graduate or higher-level degrees. Anchored by a top-tier production management team and groundbreaking technology research, we deliver a vast array of superior-quality valves, serving the petrochemical, oil, and coal chemical industries. Our remarkable achievements have fueled a sales value approaching 100 billion in 2017.

SNT has proudly secured the TS special equipment manufacturing certificate and the prestigious ISO 9001 certification. We have also earned the esteemed net qualification certificates from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our commitment to innovation is reflected in our numerous National Patents across various technologies. We specialize in designing and manufacturing a comprehensive range of valves, adhering to ANSI, API, DIN, BS, and JIS standards. Drawing from the best features of renowned valves worldwide, our independent research and development empower us to produce an extensive array 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 diverse valve portfolio also encompasses V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, among others. Our driving mechanisms include manual operation, power-driven, pneumatic, and hydraulic options. The main components are crafted from top-grade materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, etc. We offer specifications ranging from 1/2" to 120", with working pressures from ANSI 150# to 2500#, and temperatures spanning -196ºC to 1100ºC.

Empowered by advanced production technology management and a robust quality assurance system, SNT Valves find extensive application across industries like petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele includes SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Changling branch, and Jinan branch, among others.

Focusing on maximizing user profitability, we are committed to crafting exceptional quality and building a reputable brand. Our rigorous quality assurance and comprehensive after-sales systems ensure SNT valves form enduring partnerships with all our clients, paving the way for mutual prosperity.</sup>