Compact High-Sealing Vacuum Check Valve
- The CH-01 is a compact vacuum check valve designed to minimize air leakage and help keep vacuum conditions for long periods, ideal for space-limited vacuum circuits and automation modules.

Compact High-Sealing Vacuum Check Valve
| Item | Unit | CH-01 | |
|---|---|---|---|
| Applicable Fluid | Air (vacuum, non-corrosive gas, non-flammable gas) | ||
| Ambient Temperature | ℃ | 0 ~ 60 (No freezing) | |
| Operating Pressure Range | kPa | -95.8 ~ -29.3 | |
| Cracking Pressure | kPa | -20 | |
| Port Size | Cup Side | Rc1/4 | |
| CONVUM Side | Rc1/8 | ||
| Weight | g | 68 | |
Q1: What is the CH-01 vacuum check valve used for?
A: The CH-01 is a vacuum check valve designed to minimize air leakage and help maintain vacuum conditions for long periods in vacuum holding circuits.
Q2: When should I use a vacuum check valve?
A: Use it when vacuum holding is required or when you want to reduce vacuum loss caused by backflow/leakage on the vacuum side to improve retention stability.
Q3: What is the key advantage of the CH-01?
A: It features a high-sealing design to keep leakage to a minimum, with a compact form factor for space-limited vacuum modules.
Q4: What applications is the CH-01 suitable for?
A: Typical uses include suction holding with vacuum cups and pick-and-place handling where stable vacuum retention is required.
Q5: Why does the manufacturer recommend using a vacuum filter?
A: Foreign bodies entering the valve may cause air leakage; a vacuum filter helps reduce contamination risk and improves stability.
Q6: Can I use the CH-01 with a vacuum pump?
A: No. The manufacturer states that this check valve should not be used with a vacuum pump.
Q7: What is the operating pressure range of the CH-01?
A: The operating pressure range is -95.8 to -29.3 kPa.
Q8: What is the cracking pressure of the CH-01?
A: The cracking pressure is -20 kPa.