festo push-in fitting QS-1/8-6
Original price was: $1.95.$1.80Current price is: $1.80.
Festo Push-in Fitting – Complete Portfolio
| Feature / Series | Details |
|---|---|
| Product Family | Festo Push-in Fittings (Pneumatic Connection Technology) |
| Core Series | QS (Standard/Mini), NPQE (Economical), NPQM (Metal), NPQH (High-Performance Metal), NPQR (Stainless Steel), NPQP (Polypropylene), QS-V0 (Weld Spatter Resistant), QSK (Self-Sealing) |
| Body Materials | PBT (Polybutylene Terephthalate), Nickel-plated Brass, Chemically Nickel-plated Brass, Stainless Steel, Polypropylene |
| Tube Outer Diameters | 2 mm to 22 mm (metric); inch sizes available |
| Thread Types | M3, M5, M6, M7, M8, R1/8, G1/8, R1/4, G1/4, R1/2, G1/2, etc. |
| Operating Pressure | Up to 2 MPa (20 bar) depending on series |
| Operating Temperature | -10°C to +150°C (model-dependent) |
| Release Mechanism | Push-pull principle with releasing ring for easy tube disconnection |
| Corrosion Resistance | CRC 1 (standard) to CRC 4 (stainless steel) |
Typical Applications & Industries:
✓ General pneumatic automation ✓ Machine tools and production equipment
✓ Automotive and welding systems (QS-V0) ✓ Food & beverage processing (NPQH, NPQR)
✓ Chemical and aggressive media environments (NPQP) ✓ Battery manufacturing (NPQE-F1A)
✓ Medical and oxygen applications (NPQO) ✓ Semiconductor and cleanroom systems
Detailed Description – Festo Push-in Fitting Portfolio
1. Series Overview – The Standard in Pneumatic Connection
Festo push-in fittings are the industry standard for pneumatic tubing connections, widely used across automation and industrial manufacturing. Therefore, they serve as critical components for connecting sensors, valves, cylinders, and other pneumatic devices with standard outside-diameter tubing. These fittings feature an easy release function: pressing the releasing ring allows quick tube disconnection without tools .
The portfolio is built on a modular material and performance platform. Specifically, Festo offers fittings in PBT and/or brass for standard applications, while also stocking specialized materials (stainless steel, polypropylene, chemically nickel-plated brass) for demanding environments .
2. QS Series – The Universal Standard
The QS series is Festo’s most versatile push-in fitting range, available in both standard and mini designs .
Key Features:
✓ Mini series (QSM): Compact design for maximum component density in confined spaces
✓ Standard series (QS): Wide selection for maximum flexibility, including straight, L, T, X, Y, and bulkhead configurations
✓ Materials: PBT housing with nickel-plated brass thread, stainless steel tube retaining claw
✓ Operating Range: Up to 1.4 MPa (14 bar) at ambient temperatures up to 80°C
✓ Media: Compressed air, vacuum, and water (per manufacturer declaration)
3. NPQ Series – Performance-Matched Solutions
The NPQ series expands the portfolio with application-specific materials and performance levels.
NPQE (Economical Standard)
A low-cost solution for standard applications. Additionally, the NPQE-F1A variant is specifically recommended for lithium-ion battery manufacturing, featuring a tapered thread per JIS B0203 and compatibility with pressure-tight media to DIN EN 10226 .
NPQM (Metal Standard)
Nickel-plated brass construction provides a sturdy, attractively priced metal fitting. Therefore, it suits applications requiring higher mechanical robustness than plastic bodies .
NPQH (High-Performance Metal)
Chemically nickel-plated brass offers high corrosion and chemical resistance. Furthermore, it withstands temperatures up to 150°C and pressures up to 2 MPa, making it suitable for food-safe and high-temperature applications .
NPQR (Stainless Steel)
Maximum corrosion resistance (CRC 4) and chemical resistance. As a result, this series is ideal for aggressive media, food processing, and applications requiring frequent cleaning with minimal dirt accumulation points .
NPQP (Polypropylene)
A low-cost alternative to stainless steel for extreme media influences. Consequently, it resists most cleaning agents when combined with PLN tubing .
4. Specialty Variants
QS-V0 (Weld Spatter Resistant)
Reinforced PBT construction provides flame-retardant properties. Thus, it is suitable for welding systems in the automotive industry and other areas with fire risk .
QSK (Self-Sealing)
Blocks airflow after tubing disconnection, preventing unintended actuator movement during maintenance .
NPQO (Oxygen-Compatible)
Compliant with ISO 15001 and ASTM G93 for oxygen service. Moreover, it carries biocompatibility certification (ISO 18562) and uses FDA-listed materials .
QSP (Push-in Cartridge)
Space-saving plug-in cartridges for threadless mounting, available in PBT and nickel-plated brass .
5. Technical Specifications Summary
| Parameter | Standard Range | High-Performance Range |
|---|---|---|
| Material | PBT / Nickel-plated Brass | Chemically Nickel-plated Brass / Stainless Steel |
| Pressure (Max) | 1.4 MPa (14 bar) | 2 MPa (20 bar) |
| Temperature (Max) | 80°C | 150°C |
| Corrosion Resistance | CRC 1 | CRC 3 to CRC 4 |
| Tube OD Range | 2–22 mm | 4–14 mm (NPQH/NPQR) |
Selection Guide – Understanding the Naming Convention (Festo Push-in Fittings)
Festo part numbers typically combine series, thread, and tube diameter codes.
Example Format: QS-1/8-8 or NPQH-D-G1/8-Q8
| Code Position | Meaning | Options |
|---|---|---|
| QS / NPQH / NPQE | Product series | QS (standard), NPQE (economical), NPQH (high-performance metal), NPQR (stainless) |
| -D / -L / -T | Shape | D = Straight, L = Elbow, T = Tee, X = Cross |
| -1/8 / -M5 / -G1/8 | Thread type | BSPP (G), BSPT (R), Metric (M) |
| -8 / -Q8 / -6 | Tube outer diameter | 4, 6, 8, 10, 12, 16, 22 mm |
Common Series Prefix Decoder:
| Prefix | Series | Key Feature |
|---|---|---|
| QS | Standard series | PBT/brass, wide variants, general purpose |
| QSM | Mini series | Compact, high density |
| NPQE | Economical | Low-cost standard solution |
| NPQM | Metal standard | Nickel-plated brass, sturdy |
| NPQH | High-performance metal | Chemically nickel-plated, 150°C, 20 bar |
| NPQR | Stainless steel | CRC 4, easy to clean |
| NPQP | Polypropylene | Media-resistant, low-cost alternative |
| QS-V0 | Weld spatter resistant | Flame-retardant PBT |
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