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Fieldbus valve terminal

Festo VTUX and Solidot valve terminals: a project-based selection guide

Evaluate Festo VTUX against Solidot C2P, C2S, C3 and XB6 valve-terminal families by valve function, flow, pressure, manifold, fieldbus and pneumatic validation.

Short answer

What does this page recommend?

A technical alternative, not a drop-in substitute

Solidot C2P, C2S, C3 and XB6 are project-based candidates for fieldbus valve terminals, not direct replacements for a VTUX order code. Valve function, flow, pressure, stations, coils, manifold base and dimensioned drawings must be approved together.

Solidot

ProControl products to evaluate first

The exact configuration is selected after engineering review.

Solidot C2S Series
Solidot

Solidot C2S Series

Family selected by fieldbus and pneumatic options together

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Solidot C3 Series
Solidot

Solidot C3 Series

Configuration family for different manifold and valve requirements

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Technical comparison

Similar requirement, different architecture

The table explains product architectures; it is not an exact order-code selection.

Validation areaFesto VTUX valve terminalSolidot / ProControl candidate
Valve functionThe VTUX order code defines functions such as 3/2, 5/2 or 5/3 and the valve body.Solidot configuration selects valve function, coil and station layout from the project list.
Flow and pressureNominal flow, working/pilot pressure and vacuum capability depend on the exact VTUX variant.Selection is incomplete until flow/Cv, pressure, pilot type, response and port size are mapped in writing.
Manifold mechanicsVTUX base, sealing face, screws and port geometry belong to its own system.Never claim an existing valve fits or a base is compatible without dimensioned-drawing and exact valve-code matching.
Fieldbus and I/OFieldbus, station count, diagnostics and I/O depend on VTUX configuration.Validate the required PROFINET/EtherCAT/EtherNet-IP/IO-Link role and integrated I/O separately.
Safety and environmentSafe exhaust, pressure zones, IP and ATEX/safety features may be selected by order code.Do not assume these functions without written official evidence; risk assessment and pneumatic-schematic approval are required.
Suitable scenario

When is it worth evaluating?

  • New machines or projects where the pneumatic manifold can be redesigned
  • Applications with known fieldbus, station count and valve functions
  • Projects open to dimensioned-drawing and pilot-sample approval
Migration gate

Before making a decision

  1. Export exact order codes for the existing valves and terminal.
  2. Document 3/2-5/2-5/3 function, flow, pressure and pilot type for each station.
  3. Compare ports, tubing, manifold base, seals and screw drawings.
  4. Verify fieldbus role, coil count, I/O and diagnostics.
  5. Run pilot FAT for leakage, response, pressure drop and safe stop.
Frequently asked

Clear answers about alternatives and migration

Is this a drop-in replacement?

No. It is not a direct substitute until exact model, electrical, protocol-role, mechanical, software and certification checks pass.

What should I provide for selection?

The exact existing code, diagram or I/O list, PLC/network data, supply, environment and special functions in use.

Can existing Festo valves be installed on a Solidot base?

Only if the exact valve code, sealing face, screw/port layout and dimensioned drawings match with manufacturer approval; otherwise it is not considered compatible.

Official manufacturer sources: Festo VTUX · VTUX official datasheet

This content compares manufacturer-published data under the same project requirement; it does not guarantee direct substitution or project compatibility. ProControl engineering must validate exact model, revision, protocol, electrical, safety and environmental conditions.

Validate the match with an engineer

Share the exact existing code, I/O list, network and environment so we can identify the right solution without assumptions.

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