ISO valve terminal VTSA/VTSA-F

New: up to ISO size 3 and integrated safety functions
Unique: mix of 5 valve sizes on one valve terminals
ISO valve terminal VTSA/VTSA-F:
• Complete valve range ISO size 3 to flow rate of 4,500 l/min
• Complete range for vertical stacking with regulators, restrictors and pressure gauges
• Combinable with all existing valve sizes, from 02, 01, 1 to 2 and 3
• Space-optimised: new functions for flexible air supply and exhaust with slow start-up pressurisation
• Safety@Festo: with integrated safety functions such as soft-start valve and 5/2-way safety valve
• Integrated: comprehensive diagnostics concept

Safety functions to ISO 13849-1
• Safe venting to Cat. 4, Pl e with VOFA-3/2 safety valve block, ISO size 01 (26 mm): long service life for frequent shut-off process, suitable for decentralised safety solutions
• Safe reversing up to Cat. 4, Pl e with press safety valve block VOFA-5/2, ISO size 01 (26 mm)
Protection against unexpected start-up to Cat. 3 PI e with VSVA/VTSA pilot air switching valve ISO size 01 (26 mm) or 02 (18 mm) with an integrated sensor, optionally with special SPBA pressure switches as an alternative diagnostic concept
• Safe stopping, holding, blocking of the movement to Cat. 2, Pl e with VSVA 5/3-way valves with a self-locking loop for lifting and rotary cylinders or pneumatic manual clamping devices
• Soft-start and exhaust valve VABF for controlled, safe pressurising up to Cat. 3, Pl d
• Can be combined with Profisafe shut-off module on the CPX terminal
• These safety functions can be combined with all existing valve sizes 02, 01, 1, 2 and 3 for a technically and economically perfect design of the electric and pneumatic control chain.

Soft-start valve VABF
The optimum pressure build-up and filling time required by the application for each pressure zone is configured directly on the valve terminal.
The sensor (N/O contact) monitors the activated position of the piston spool.

Control block VOFA
• 3/2-way valve with switching position sensing
• Redundant (connected in series, in double version, 2-channel)
• Single solenoid with spring return
• ISO size 26 mm (01)
• External pilot air for reliable venting

Standard valve VSVA with self-locking loop
• 5/3-way valve with unilateral self-locking loop (non-detenting switching position on one side, detenting switching position on the other side)
• ISO size 26 mm (01)
• External pilot air