Name: VUWS-L25-P53C-M-G14 Festo Pneumatic Valve - INOSAKI
SKU: Festo-575529
Price: 88.40 USD
Availability: InStock

Technical Overview

The Festo VUWS-L25-P53C-M-G14 is a pneumatically actuated 5/3-way directional control valve (normally closed) designed for robust automation performance. Utilizing a piston gate valve design with a mechanical spring reset, it delivers a high nominal flow rate of 1200 l/min through G1/4 pneumatic ports. This valve is engineered for versatility with an optional mounting position, reversible flow direction, and compatibility with both manifold rail and through-hole mounting configurations. It is suitable for diverse industrial environments, featuring ATEX certification for hazardous zones 1, 2, 21, and 22, and ISO Class 6 cleanroom suitability.

Key Features

5/3-way closed valve function
Direct pneumatic actuation
Piston gate valve design
Mechanical spring reset
ATEX certification for Zones 1, 2, 21, and 22
ISO Class 6 cleanroom suitability
Moderate corrosion resistance (CRC 2)
Reversible flow direction
RoHS-compliant materials
Supports lubricated operation

Technical Specification Matrix

Parameter	Value
Valve function	5/3 closed
Type of actuation	Pneumatic
Valve size	26.5 mm
Standard nominal flow rate (standardised to DIN 1343)	1200 l/min
pneumatic working port	G1/4
Operating pressure (MPa)	-0.09 MPa ... 1 MPa
Operating pressure (bar)	-0.9 bar ... 10 bar
Design	Piston gate valve
Type of reset	Mechanical spring
Approval	c UL us - Recognized (OL)
Nominal size	6.5 mm
Exhaust-air function	With flow control option
Sealing principle	Soft
Mounting position	optional
Manual override	None
Type of piloting	Direct
Pilot air supply	Internal
Flow direction	Reversible
Symbol	00991018
lap	Overlap
Pilot pressure (MPa)	0.25 MPa ... 1 MPa
Pilot pressure (bar)	2.5 bar ... 10 bar
Switching time off	65 ms
Switching time on	13 ms
Switching time reversal	30 ms
Explosion protection	The information in the certificate must be observed! Zone 1 (ATEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 22 (ATEX)
Operating medium	Compressed air to ISO 8573-1:2010 [7:4:4]
Note on operating and pilot medium	Lubricated operation possible (in which case lubricated operation will always be required)
Vibration resistance	Transport application test with severity level 2 to FN 942017-4 and EN 60068-2-6
Shock resistance	Shock test with severity level 2 to FN 942017-5 and EN 60068-2-27
Corrosion resistance class CRC	2 - Moderate corrosion stress
LABS (PWIS) conformity	VDMA24364-B1/B2-L
Cleanroom suitability	Class 6 according to ISO 14644-1
Media temperature	-10 °C ... 60 °C
Pilot medium	Compressed air to ISO 8573-1:2010 [7:4:4]
Ambient temperature	-10 °C ... 60 °C
Product weight	310 g
Type of mounting	On manifold rail With through-hole
Breather connection	Not ducted
Pilot air port 12	M5
Pilot air port 14	M5
Pneumatic connection, port 1	G1/4
Pneumatic connection, port 2	G1/4
Pneumatic connection, port 3	G1/4
Pneumatic connection, port 4	G1/4
Pneumatic connection, port 5	G1/4
Note on materials	RoHS-compliant
Material seals	HNBR NBR
Material housing	Painted
Material piston slide	Wrought aluminium alloy
Material screws	Galvanised steel

Industrial Applications

1. Explosion-Proof Actuator Control in Chemical Processing Facilities

Utilizing the pneumatically actuated 5/3-way valve to operate and hold large process cylinders mid-stroke within hazardous chemical environments where electrical sparking poses a severe risk.

Problem Solved

Provides precise pneumatic directional control and reliable mid-stroke holding for heavy actuators in ATEX Zone 1 environments without requiring electrical components.

ATEX Zone 1Pneumatic actuation5/3 closed1200 l/min flow rate

2. Precision Wafer Handling Lift in ISO Class 6 Cleanrooms

Controlling the pneumatic lifting and sorting mechanisms for semiconductor wafer handling systems, allowing for intermediate stopping and holding of components.

Problem Solved

Eliminates particulate contamination risks during high-flow pneumatic operations while enabling emergency mid-stroke pauses via the 5/3 closed configuration in cleanroom settings.

ISO 14644-1 Class 61200 l/min flow rate-0.9 bar to 10 barReversible flow direction

3. Pneumatic Braking and Clamping on High-Vibration Transport Machinery

Managing the pneumatic actuation of clamping and braking cylinders on mobile transport machinery subjected to continuous shock and intense vibration.

Problem Solved

Ensures the clamping cylinders safely lock into their current position (mid-position closed) upon system pause, withstanding severe mechanical shocks without accidental valve switching.

Severity level 2 vibrationSeverity level 2 shockMechanical spring resetPiston gate valve