Bushing Type Check Valve With One-Touch Fitting AKH/AKB Series
Brand :
SMC
Caution
- Refer to the catalog for product specifications.
- Product images may be representative images. Refer to the catalog for details.
Product Description
Quick exhaust valve / shuttle valve.
[Features]
· 3 types for use in different operating conditions.
· With one-touch fitting.
Bushing Type Check Valve AKH/AKB Series Specifications
Straight Type AKH dimensional outline drawing
Metric Size
(Unit: mm)
| Applicable tube outer diameter | Model | øD | L | M | Sonic conductance dm3/(s-bar) | Critical pressure ratio | Weight g |
|---|---|---|---|---|---|---|---|
| 4 | AKH04-00 | 9.3 | 33.5 | 12.7 | 0.56 | 0.35 | 3 |
| 6 | AKH06-00 | 11.6 | 37.1 | 13.5 | 1.3 | 5 | |
| 8 | AKH08-00 | 15.2 | 53.3 | 18.5 | 2.8 | 0.5 | 10 |
| 10 | AKH10-00 | 18.5 | 63.6 | 21 | 4.8 | 17 | |
| 12 | AKH12-00 | 21.7 | 70.2 | 22 | 6.8 | 25 |
Inch Size
(Unit: mm)
| Applicable tube outer diameter | Model | øD | L | M | Sonic conductance dm3/(s-bar) | Critical pressure ratio | Weight g |
|---|---|---|---|---|---|---|---|
| 5/32 | AKH03-00 | 9.3 | 33.5 | 12.7 | 0.56 | 0.35 | 3 |
| 1/4 | AKH07-00 | 12 | 39 | 13.6 | 1.3 | 6 | |
| 5/16 | AKH09-00 | 15.2 | 53.3 | 18.5 | 2.8 | 0.5 | 10 |
| 3/8 | AKH11-00 | 18.5 | 63.6 | 21 | 4.8 | 17 | |
| 1/2 | AKH13-00 | 21.7 | 70.2 | 22 | 6.8 | 24 |
Specifications
| Usable fluids | Air |
|---|---|
| Guaranteed pressure resistance | 1.5 MPa |
| Operating pressure range | -100 kPa to 1 MPa |
| Cracking pressure | Note 1: 0.005 MPa |
| Ambient temperature and working fluid temperature | -5 to 60°C (no freezing) |
| Note 2: Applicable tube material | Nylon, soft nylon, polyurethane |
Note 1: Not the pressure at which the valve fully opens.
Note 2: Take note of the maximum operating pressure when using soft nylon or polyurethane.
Bushing Type Check Valve With One-Touch Fitting Example Application
Preventing backflow to the source of the vacuum (simple vacuum retention)
Preventing backflow of the internal tank pressure
Fall prevention
*The product specifications allow for a certain amount of leakage. Note that the product is not suitable for pressure retention over long periods.
Design Notes And Selection
- 1. The valve may not open fully and may oscillate if the IN side on the check valve is throttled, even if used within the specification range detailed.
- 2. The cracking pressure is the pressure at which the valve begins to open, not the pressure at which it fully opens.
- 3. The check valve is structured so that the differential pressure generated when switching between the solenoid valve for the primary pressure (IN) and secondary pressure (OUT) causes it to close. Note that if the primary pressure (IN) drops gently and the differential pressure becomes less than the minimum operating pressure or cracking pressure, the secondary pressure (OUT) may also drop with the check valve not fully closing.