Data sheet
GRLSA-1/8-QS-6 (540661) One-way flow control
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OT-FESTO028285
Example illustration
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| Valve function | Exhaust air flow control return function |
| Pneumatic connection 1 | QS-6 |
| Pneumatic connection 2 | G1/8 |
| Setting element | hexagon socket |
| Fastening type | Screwable |
| Normal nominal flow in one-way flow control [l/min] | 0 to 250 |
| Normal nominal flow in check valve direction [l/min] | 180 to 310 |
| ambient temperature [°C] | -10 to 60 |
| installation position | arbitrary |
| Normal flow In one-way flow control 6 -> 0 bar [l/min] | 0 to 410 |
| Standard flow rate in flow control direction 0.6->0 MPa (6->0 bar, 87->0 psi) [l/min] | 430 to 540 |
| Standard flow rate in non-return direction 0.6->0 MPa (6->0 bar, 87->0 psi) | Compressed air to ISO 8573-1:2010 [7:4:4] |
| Information about operating and control medium | Oiled operation possible (required in further operations) |
| Information about operating and control medium [°C] | -10 to 60 |
| Material information | Copper and PTFE-free |
| Seals material | NBR |
| Regulation screw material | PA reinforced |
| Material information | Zinc pressure cast |
| Operating pressure complete temperature range [bar] | 0.2 to 10 |
| Banjo bolt material |
Aluminium wrought alloy, anodized |
| Bearing temperature [°C] | -10 to 40 |
| Actuation type | Manually |
| Nominal tightening torque [Nm] | 3,5 |
| Tolerance to nominal tightening torque | ± 20 % |
| Sleeve material | POM |
Further information:
| {{ $t('shop.all.gewicht') }} | 25 g / pcs |
| {{ $t('shop.all.gtin') }} | 4052568090487 |
| {{ $t('shop.display.artikel.zollwarennummer') }} | 84812090 |
| {{ $t('shop.all.hersteller') }} | Festo |
Figure
More information on this item and the process for ordering it can be found in our online shop https://www.landefeld.com under item number OT-FESTO028285.
Landefeld Druckluft und Hydraulik GmbH · Konrad-Zuse-Straße 1 · 34123 Kassel · Germany
All data are to be understood as non-binding reference values! We do not assume liability for any data selection not confirmed in writing. Unless otherwise specified, pressure values refer to liquids from Group II at +20°C.
Our products arid goods are generally only intended for industrial and commercial uses.
Our products arid goods are generally only intended for industrial and commercial uses.
As of: 20.12.2025