Product Description
The Festo VTSA-F-ASI is a flow-optimised version of the VTSA valve terminal, combining increased flow rates with AS-Interface bus communication in a modular vertical stacking design . Conforming to ISO 15407-2 and ISO 5599-2 standards, this valve terminal allows five different valve sizes (18 mm to 65 mm) to be combined on one terminal, supporting up to 32 valves and 32 pressure zones . The AS-Interface enables simultaneous transmission of data and power through a simple 2-wire cable, significantly simplifying wiring in distributed automation systems .
Key Features & Advantages:
Flow-Optimised Design with Increased Flow Rates: The VTSA-F series delivers higher standard nominal flow rates compared to standard VTSA – 700 l/min at 18 mm, 1350 l/min at 26 mm, 1860 l/min at 42 mm, 2900 l/min at 52 mm, and 4000 l/min at 65 mm
AS-Interface Fieldbus Communication: Features AS-Interface bus connection supporting simultaneous data and power transmission over a 2-wire cable. ID code S-7.F.E with 4E4A (4 inputs/4 outputs) or 8E8A (8 inputs/8 outputs) configurations available
Five Mixable Valve Sizes: Supports 18 mm, 26 mm, 42 mm, 52 mm, and 65 mm valve sizes on one valve terminal, allowing optimised flow capacity selection per valve position
High Valve Position Capacity: Accommodates up to 32 valves and up to 32 independent pressure zones, providing exceptional scalability for large-scale pneumatic control systems
IP65 Protection Class: Provides dust-tight protection and protection against water jets (NEMA Type 4), suitable for washdown environments and demanding industrial conditions
No Corrosion Stress Construction: Rated with Corrosion Resistance Class (CRC) 0, ensuring exceptional durability in harsh industrial environments
ATEX Zone 2 Certification: Certified for potentially explosive gas atmospheres with II 3G Ex nA IIC T3 X Gc rating (VTSA-F-ASI) or Ex ec IIC T3 Gc X (VTSA-F-ASI-NPT). Explosive ambient temperature range: -5°C to +50°C
Extensive Valve Function Range: Available in over 12 valve functions including 5/2 monostable/bistable, 5/2 bistable with dominant signal, 5/3 pressurised/exhausted/closed, 2x3/2, 2x2/2, 5/2 monostable with safety function, and 5/3 port 2 pressurised / port 4 exhausted variants
Low Power Consumption: 5/2 and 5/3 valves consume 1.6 W (72 mA), while 3/2 valves consume 1.3 W (60 mA) at 24 V DC ±10%, ensuring energy-efficient operation
LED Status Indication: Features status LEDs for AS-Interface voltage (green), fault indication (red), AUX/PWR auxiliary supply (green), and input signals (yellow) for easy system troubleshooting
Vacuum Capable: Suitable for vacuum applications down to -0.9 bar, expanding usability for negative pressure handling
Internal or External Pilot Air Supply: Supports both internal and external pilot air supply configurations (3 bar to 10 bar pilot pressure), allowing flexible system design
Modular Design with Mixed Valve Sizes: Valve island type 45 with modular construction allows mixing different valve sizes on a single manifold for optimised space and flow management
Integrated I/O System: Features integrated inputs for sensor connection via exchangeable CPX sub-bases, available with M12, HARAX, or terminal strip connections (4-pin or 5-pin)
Non-Lubricated Operation Required: Operating medium note indicates that lubricated operation is not permissible; only non-lubricated compressed air according to ISO 8573-1:2010 [7:4:4] is allowed
Wide Operating Temperature Range: Operates reliably from -5°C to 50°C, with storage temperature from -20°C to 60°C and relative humidity up to 90% at 40°C
c UL us & RCM Certified: Carries c UL us - Recognized (OL) (UL E322346), RCM compliance mark, and KC EMC certifications, ensuring safety for international industrial applications
CE and RoHS Compliant: Meets EU EMC Directive, EU Explosion Protection Directive (ATEX), and RoHS requirements
Piston Gate Valve Design: Features robust piston gate valve construction with soft sealing principle, providing reliable long-term performance and extended service life
Exhaust Air Function: Equipped with exhaust air function via throttle plate for controlled air discharge
Technical Specifications:
Brand: Festo
Model Series: VTSA-F-ASI
Product Numbers: 555566 (VTSA-F-ASI), 8173639, 8173642 (VTSA-F-ASI-NPT)
Product Type: Valve Terminal / Flow-Optimised Valve Manifold with AS-Interface Connection
Terminal Type: 45
Valve Sizes Supported: 18 mm, 26 mm, 42 mm, 52 mm, 65 mm
Max. Number of Valve Positions: 32
Max. Number of Pressure Zones: 32
Standard Nominal Flow Rate (VTSA-F): 700 l/min (18 mm), 1350 l/min (26 mm), 1860 l/min (42 mm), 2900 l/min (52 mm), 4000 l/min (65 mm)
Operating Pressure: -0.9 bar to 10 bar
Vacuum Suitability: Yes
Operating Medium: Compressed air to ISO 8573-1:2010 [7:4:4]
Media Note (VTSA-F-ASI): Lubricated operation not permissible
Media Note (VTSA-F-ASI-NPT/select variants): Operation with oil lubrication possible (required for further use thereafter)
Corrosion Resistance Class (CRC): 0 – No corrosion stress
Degree of Protection: IP65 / NEMA Type 4 (when fully plugged or fitted with protective cover)
Ambient Temperature: -5°C to 50°C
Storage Temperature: -20°C to 60°C
Relative Air Humidity: 0% to 90% at 40°C
ATEX Certification: II 3G Ex nA IIC T3 X Gc or II 3G Ex ec IIC T3 Gc X (Zone 2 gas, variant dependent)
Explosive Ambient Temperature Range: -5°C ≤ Ta ≤ +50°C
CE Marking: EU EMC Directive, EU Explosion Protection Directive (ATEX)
c UL us Certification: Recognized (OL) – UL E322346
RCM Mark: Yes
KC Certification: KC EMC
AS-Interface Specifications: ID = FH, ID1 = FH, ID2 = EH; IO = 7H; Profile = S-7.F.E
AS-Interface Bus Voltage Range: 26.5 V DC to 31.6 V DC
AS-Interface Current Consumption (Electronics): <25 mA
AS-Interface Max. Sum Current for Inputs: 350 mA (with additional power supply) / 500 mA (without additional power supply, only 4E/4A)
Additional Supply (Load Voltage): 21.6 V DC to 26.4 V DC (24 V DC ±10%)
Power Consumption per Coil: 5/2 and 5/3 valves – 1.6 W (72 mA); 3/2 valves – 1.3 W (60 mA)
Max. Switching Frequency: 10 Hz
Max. Duty Cycle at >2 Hz: 50%
Protection Class: III (PELV) according to EN 61140
Pollution Degree: Min. 2 according to IEC 60664-1
Valve Functions Available: 2x2/2 normally closed monostable, 2x3/2 normally closed monostable, 2x3/2 normally open monostable, 2x3/2 open/closed monostable, 5/2 bistable, 5/2 bistable with dominant signal, 5/2 monostable, 5/2 monostable with safety function, 5/3 pressurised, 5/3 exhausted, 5/3 closed, 5/3 port 2 pressurised / port 4 exhausted
Valve Design: Piston gate valve
Sealing Principle: Soft
Pilot Air Supply: Internal or External
Pilot Pressure: 3 bar to 10 bar
Electrical Actuation: AS-Interface fieldbus
Signal Status Display: LED (AS-i green, Fault red, AUX/PWR green, Inputs yellow)
Valve Manifold Design: Modular – pneumatic valve sizes can be mixed
Pneumatic Working Port Options: G1/8, G1/4, G3/8, G1/2, G1, QS-6, QS-8, QS-10, QS-12, QS-16
Type of Mounting: H-rail (EN 60715), Wall mounting
Tightening Torque – Earthing Screw: 1.0 Nm ±10%
Tightening Torque – M12 Connector: 0.5 Nm
Tightening Torque – M8 Connector: 0.25 Nm to 0.5 Nm
Material Note: RoHS-compliant
Country of Origin: Germany
LED Diagnostic Codes:
AS-i (green) on / Fault (red) off – AS-Interface voltage applied, no fault
AS-i (green) on / Fault (red) flashes – Short circuit/overload at input
AS-i (green) on / Fault (red) on – Bus communication failed (Watchdog expired)
AS-i (green) flashes / Fault (red) flashes – Additional power supply not applied or undervoltage
AS-i (green) flashes / Fault (red) on – AS-Interface address not set (= 0)
AS-i (green) off / Fault (red) off – AS-Interface voltage not applied
AUX/PWR (green) on – Additional supply exists
AUX/PWR (green) off – No additional supply or additional supply failed
Inputs (yellow) on – 1-signal at input
Inputs (yellow) off – 0-signal at input
ATEX Special Conditions for Use (Marking X):
Install device in enclosure with minimum IP54 protection according to EN 60079-0
Do not disconnect or open when powered
Prevent separation of plug connectors or housing parts by using enclosure with special lock
Use cable strain relief for cables in front of all plugs
Prevent electrostatic charging of housing through suitable installation measures
Energise only one coil of a 5/2-way valve or 5/3-way valve at a time
Protect device from UV radiation and any shock loading
Device may only be used in an area with at least pollution degree 2 (IEC 60664-1)
Ideal For:
Large-scale industrial automation systems requiring AS-Interface bus communication with higher flow rates (VTSA-F flow-optimised series), applications needing up to 32 valve positions with up to 32 pressure zones, systems requiring five mixable valve sizes (18-65 mm) on a single manifold, paint shop environments requiring LABS conformity, potentially explosive atmospheres ATEX Zone 2 (gas), automotive manufacturing, machine tools, packaging machinery requiring high flow rates, material handling systems, chemical and pharmaceutical processing (Zone 2 hazardous areas), vacuum applications down to -0.9 bar, systems requiring IP65 washdown protection, applications with integrated sensor inputs (4 or 8 channels), and systems where simplified 2-wire bus wiring is preferred over traditional multi-pin connections.
Why Choose Festo VTSA-F-ASI Valve Terminal?
Engineered by Festo to ISO 15407-2/ISO 5599-2 standards with flow-optimised design delivering higher flow rates (700-4000 l/min) than standard VTSA, AS-Interface bus communication for simplified 2-wire wiring, supporting up to 32 valve positions and 32 pressure zones, featuring five mixable valve sizes (18-65 mm), CRC 0 corrosion resistance, IP65/NEMA 4 protection, ATEX Zone 2 certification (II 3G Ex nA IIC T3 X Gc), low power consumption (1.6 W/1.3 W), LED status diagnostics, extensive valve function options (12+ configurations), internal or external pilot air supply (3-10 bar), vacuum compatibility down to -0.9 bar, integrated I/O system with 4 or 8 inputs, c UL us, RCM, KC, and CE certifications, RoHS compliance, and German engineering quality, this flow-optimised valve terminal ensures reliable, flexible, and safe pneumatic control for demanding industrial automation applications with AS-Interface fieldbus connectivity and increased flow performance.
Tags:
#Festo #VTSAFASI #555566 #ValveTerminal #ValveManifold #ASInterface #FlowOptimised #Fieldbus #ISO154072 #ISO55992 #IP65 #CRC0 #ATEX #cULus #MalaysiaSupplier
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