Product Description
The Festo VABF-S6 series soft-start valves are function elements specifically designed for VTSA and VTSA-F valve terminals conforming to ISO 5599-2 standards . The purpose of the soft-start valve is to slowly and securely build up the supply pressure in duct (1) of the valve terminal or to quickly exhaust duct (1) of the valve terminal . By setting the switchover pressure and filling time, the pressure build-up is designed application-specifically for every pressure zone on the valve terminal .
Key Features & Advantages:
Gradual Pressure Build-Up Function: Slowly and securely builds up supply pressure in duct (1) of the valve terminal, preventing sudden pressure surges that could damage pneumatic components or cause hazardous movements . When the valve terminal is exhausted, duct (1) is quickly exhausted via the soft-start valve's exhaust outlet .
Adjustable Switchover Pressure: Factory preset switching point of 4 bar, but can be changed using an adjusting screw to match specific application requirements . The switching point occurs between 50-75% of operating pressure .
IP65 / NEMA 4 Protection Class: Provides dust-tight protection and protection against water jets, ensuring reliable operation in demanding industrial environments requiring high ingress protection .
No Corrosion Stress Construction: Rated with Corrosion Resistance Class (CRC) 0, providing no corrosion stress and ensuring exceptional durability and reliability even in harsh industrial environments .
LABS (PWIS) Conformity: Complies with VDMA24364-B1/B2-L standards for paint-wetting impairment substances conformity, making these components suitable for paint shop environments and applications sensitive to paint defects .
ISO 5599-2 Standard Compliance: Engineered to comply with ISO 5599-2 standards, ensuring compatibility with VTSA valve terminals and ISO-compliant pneumatic systems for seamless integration .
Internal Pilot Air Supply: Features internal pilot air supply via the soft-start valve, with the full operating pressure always available at duct (14) causing the valves on the valve terminal to immediately move to the required switching position .
Electrical Actuation with LED Status Display: Electrically actuated with 24V DC coil (1.6W or 2.5W depending on variant) and features yellow LED for valve control and green LED for pressure switch exhausted status .
Durable Wrought Aluminum Alloy Construction: Manufactured from high-quality wrought aluminum alloy with HNBR/NBR seals, providing excellent mechanical strength, corrosion resistance, and durability for long-lasting industrial performance .
High Flow Capacity: Delivers standard nominal flow rate of 3000 l/min for pressurization and 3300 l/min for exhaust air, ensuring efficient pneumatic system operation .
Piston Gate Valve Design: Features piston gate valve structural design with soft sealing principle and mechanical spring return, ensuring reliable operation and long service life .
Wide Operating Pressure Range: Operates effectively from 2 bar to 12 bar (3 bar to 10 bar on some variants), providing versatility for various pressure conditions in industrial automation .
Broad Ambient Temperature Range: Operates reliably from -5°C to 50°C, ensuring consistent performance across various industrial environmental conditions .
Force Dynamization Requirement: Requires switching frequency of at least once per month to ensure reliable operation and prevent valve sticking .
Reliability Certifications: Features B10 service life of 10 million cycles (VABF-S6-1-P5A4S2YE-G12-1T5-PA) or 1 million cycles (VABF-S6-1-P5A4-G12-4-1), with MTTF of 452 years for the pressure switch subcomponent . Certified as a well-tried component according to ISO 13849-1 for safety-related applications .
CE and RoHS Compliant: Carries CE certificate in compliance with EU Low Voltage Directive and RoHS compliance, ensuring safety and environmental standards for international industrial applications .
Technical Specifications:
Brand: Festo
Model: VABF-S6 Series (VABF-S6-1-P5A4-G12-4-1 / VABF-S6-1-P5A4-N12-4-1 / VABF-S6-1-P5A4S2YE-G12-1T5-PA / VABF-S6-1-P5A4S1S-G12-1T5-PA / VABF-S6-1-P5A4S1YE-G12-1T1L-PZ)
Product Nos.: 558230 (VABF-S6-1-P5A4-G12-4-1), 558231 (VABF-S6-1-P5A4-N12-4-1), 558232 (VABF-S6-1-P5A4-N12-4-1-P), 558233 (VABF-S6-1-P5A4-G12-4-1-N), 8067405 (VABF-S6-1-P5A4S2YE-G12-1T5-PA), 8067411 (VABF-S6-1-P5A4S1S-G12-1T5-PA), 8161609 (VABF-S6-1-P5A4S1YE-G12-1T1L-PZ)
Product Type: Soft-Start Valve / Pressure Build-Up Valve / Function Element
Series: VABF-S6
Based on Standard: ISO 5599-2
Application: VTSA and VTSA-F valve terminals, VTSA valve islands
Valve Function: Pressure build-up function / Exhaust function
Switching Element Function: N/C contact (Normally Closed)
Sealing Principle: Soft
Reset Method: Mechanical spring
Type of Control: Pilot-controlled
Pilot Air Supply: Internal
Flow Direction: Non-reversible
Lap: Underlap
Construction: Piston gate valve / Piston pusher
Mounting Position: Any
Operating Pressure: 2 bar to 12 bar (0.2 MPa to 1.2 MPa) / 3 bar to 10 bar (variant dependent)
Preset Switchover Pressure: 4 bar (adjustable)
Standard Nominal Flow Rate (Pressurization): 3000 l/min
Standard Nominal Flow Rate (Exhaust Air): 3300 l/min
Nominal Operating Voltage DC: 24V
Coil Characteristics: 1.6 W or 2.5 W (variant dependent)
Permissible Voltage Fluctuations: +/- 10%
Duty Cycle: 100%
Operating Medium: Compressed air to ISO 8573-1:2010 [7:4:4]
Media Note: Oiled operation possible (required for continued operation if initially lubricated) – or oil lubrication not possible (variant dependent)
Corrosion Resistance Class (CRC): 0 - No corrosion stress
LABS (PWIS) Conformity: VDMA24364-B1/B2-L
Degree of Protection: IP65 / NEMA 4
Ambient Temperature: -5°C to 50°C
Storage Temperature: -20°C to 60°C
Media Temperature: -5°C to 50°C
Relative Air Humidity: Max. 90% at 40°C
Vibration Resistance: Transport application test with severity level 2 in accordance with FN 942017-4 and EN 60068-2-6
Shock Resistance: Shock test with severity level 2 in accordance with FN 942017-5 and EN 60068-2-27
Max. Positive Test Pulse with Logic 0 Signal: 2000 µs or 2500 µs (variant dependent)
Max. Negative Test Pulse with Logic 1 Signal: 1200 µs or 1400 µs (variant dependent)
Service Life (B10): 1 million cycles or 10 million cycles (variant dependent)
MTTF (Subcomponent): 452 years (pressure switch)
Safety Integrity Level (SIL): Exhausting / SIL 1 (select variants)
Note on Forced Dynamization: Switching frequency at least once per month
Signal Status Display: Yellow LED (valve control), Green LED (pressure switch, exhausted status) – select variants
Switching Position Sensing: Via pressure switch (exhausted status)
Manual Override: Detenting / Self-resetting via electrical control signal (ratcheting, self-resetting by electrical control signal)
Electrical Connection: Plug-in / Square shape according to EN 175301-803, Wiring diagram Form C
Sensor Connection: M12x1, 4-pin plug (M12x1, 3-pin plug – variant dependent)
Type of Mounting: On sub-base / on connection plate
Mounting Type: On connection plate size 1 to ISO 5599-2
Pneumatic Connection 3: G1/2
Pilot Air Port Connection 12/14: Connection plate size 1 to ISO 5599-2
Pneumatic Connection 1, 2, 4: Connection plate size 1 to ISO 5599-2
Product Weight: 466 g to 650 g (variant dependent)
Housing Material: Wrought aluminum alloy
Seals Material: HNBR / NBR
Material of Screws: Steel, galvanized (zinc-plated)
Material Note: RoHS-compliant
Certifications: CE certificate (EU Low Voltage Directive), UKCA marking, RCM compliance mark
Variant Availability: Available with G1/2 or NPT connections, with or without piston position query (pressure switch), with different LED indicator configurations, and with oil-lubricated or oil-free operation options
Ideal For:
VTSA and VTSA-F valve terminals, ISO 5599-2 compliant pneumatic systems requiring gradual pressure build-up (soft-start function), safety-related applications requiring controlled pressurization, industrial automation systems, factory automation, paint shop environments requiring LABS conformity, machine building, systems requiring IP65 protection and CRC 0 corrosion resistance, applications requiring electrical actuation with LED status indication, and safety applications requiring SIL 1 rating.
Why Choose Festo VABF-S6 Series Soft-Start Valve?
Engineered by Festo to ISO 5599-2 standards with soft-start pressure build-up function, adjustable switchover pressure (preset 4 bar), IP65/NEMA 4 protection, CRC 0 corrosion resistance, LABS conformity (VDMA24364-B1/B2-L), high 3000/3300 l/min flow capacity, 24V DC electrical actuation with LED status display, piston gate valve design with mechanical spring return, B10 service life up to 10 million cycles, 452-year MTTF (pressure switch), SIL 1 rating on select variants, CE and RoHS compliance, and available with G1/2 or NPT connections, this soft-start valve ensures gradual, secure pressure build-up, rapid exhaust, and environmental compliance for VTSA valve terminal applications with robust ingress protection and safety certifications.
Tags:
#Festo #VABFS6 #SoftStartValve #PressureBuildUp #VTSA #ISO55992 #IP65 #LABSConformant #MalaysiaSupplier
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