Vacuum Check Valve for Workpiece Drop Prevention
| Item | Unit | FPV-M5 | FPV-M6 | FPV-R1 (FPV-G1) (FPV-N1) | FPV-R2 (FPV-G2) (FPV-N2) | FPV-R3 (FPV-G3) (FPV-N3) | |
|---|---|---|---|---|---|---|---|
| Applicable Fluid | Air (vacuum, non-corrosive gas, non-flammable gas) | ||||||
| Ambient Temperature | ℃ | 0 ~ 60 (No freezing) | |||||
| Operating Pressure Range | -100 kPa ~ 0.6 MPa | ||||||
| Min. Operating Vacuum Flow | L/min (ANR) | 10 | 15 | ||||
| Filtration Accuracy | μm | 25 | |||||
| Filtration Area | mm2 | 14 | 20 | 50 | 12 | ||
| Attachment Screw | Cup Side | M5 | M6 | Rc1/8 | Rc1/4 | Rc3/8 | |
| Fitting Side | M5 | M6 | R1/8 | R1/4 | R3/8 | ||
| Weight | g | 6.5 | 7 | 12 | 16 | 24 | |
Note: min. operating flow is the value required at the vacuum source (CONVUM side).
Q1: What is the FPV vacuum check valve used for?
A: The FPV is designed for multi-cup vacuum circuits to help prevent workpiece drop. If some cups lose contact and create an open leak path, the FPV seals that branch to help reduce overall vacuum pressure drop.
Q2: When should I add a workpiece drop prevention check valve?
A: It's recommended when one vacuum source drives multiple suction cups (pick-and-place handling). If partial "no-contact" conditions can occur, adding FPV valves helps isolate leaking branches and stabilize the circuit.
Q3: How is the FPV different from a typical vacuum check valve?
A: The FPV is focused on automatically sealing idle/leaking suction branches in multi-cup setups. It also includes an integrated filter to help reduce dust/particles entering the vacuum line.
Q4: Can the FPV be used with porous workpieces?
A: It depends. Porous or highly leaking workpieces may reduce vacuum stability due to leakage/insufficient flow. Verify your vacuum source capability and test under real operating conditions.
Q5: Can I use the FPV as a vacuum maintaining device (vacuum holding)?
A: No. The FPV is intended to reduce vacuum drop caused by open branches in multi-cup circuits, not to maintain vacuum over time. Choose a dedicated solution if vacuum holding is required.
Q6: Where should I install the FPV, and how do I orient it?
A: Install the FPV on suction cup branches, oriented from the vacuum source side toward the cup side. In many systems, one valve is used per cup branch (or per branch group), then validated by real testing.
Q7: How do I select the right thread/model (M5/M6/R1–R3)?
A: Select the model based on your branch fittings/threads (M5×0.8, M6, R1/8, R1/4, R3/8). Also confirm the vacuum source flow capability to ensure stable operation.
Q8: How often should I service the integrated filter?
A: Maintenance depends on dust level, environment, and cycle rate. If suction performance drops or response slows, inspect the filter and schedule cleaning/replacement to keep the vacuum circuit stable.
