When a pneumatic cylinder or solenoid valve is no longer available, the exact part number often leads nowhere — the series may be withdrawn or the code revised. The faster route is cross-referencing: capture the dimensions and electrical attributes that define the part and match them to a current alternative. This guide covers what to read and how to turn it into a replacement specification.
What defines interchangeability
A pneumatic part is defined by its size and how it is wired. Capture these before looking for a substitute:
| Parameter | Why it matters |
|---|---|
| Bore | Cylinder inner diameter (mm) sets force and footprint |
| Stroke | Travel length (mm) |
| Mounting | ISO 15552, tie-rod, compact or round-body style |
| Port size | Valve thread or flange (e.g. G1/8, G1/4) |
| Voltage | 24 V DC typical for solenoids; confirm coil |
| Function | Valve action (3/2, 5/2, 5/3) and manual override |
| Actuator | Rack-and-pinion, scotch yoke or quarter-turn for valves |
A nameplate photo plus the bore and stroke is usually enough for a specialist to propose a match.
Notes by part
- Solenoid valves (FESTO MFH): port size, voltage and function decide the match.
- Standard cylinders (FESTO DNC, ISO 15552): bore, stroke and mounting are the key dims.
- Pneumatic actuators (OMAL DA): torque at the stated pressure and the quarter-turn angle.
- Ball valves (OMAL MAGNUM / THOR, VIP coaxial): bore, pressure rating and actuator mount.
- Pressure regulators (AirCom R160 / RT / PQ1, FRL units): range and port size.
How a cross-reference is built
- Record the original code and capture a nameplate photo.
- For cylinders, note bore, stroke and mounting style.
- For valves, note port size, voltage and function.
- Confirm the actuator type and any manual override.
- Assemble and cycle-test before full rollout.
Why use a sourcing specialist
A given function is offered by several manufacturers with equivalent specs — FESTO and OMAL cover common cylinders, valves and actuators. A sourcing partner keeps multiple brands on file, checks the candidate against your nameplate, supplies procurement documentation, and can often ship a stocked equivalent within a day or two instead of waiting on a long factory lead time.
Get a quote
If you have a pneumatic part number — current or obsolete — send it with a photo. We return a cross-reference suggestion, price and lead time, typically within one business day.
- Browse the FESTO pneumatics range we carry.
- Or go straight to the inquiry form.