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Captive quick-connect coupling. 9 variants from 16.57 EUR.
Captive quick-connect coupling - Riegler K2551
RIEGLER
Original product
Net price (excl. VAT)
As low as
€16.57
Item
RGL-K2551
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
ConditionNew
Artikel
RGL-K2551
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Total price
Captive quick-connect coupling. This range covers 9 variants from 16.57 EUR. Select the version you need above.
Available variants
| Connection | G 1/4 IG, G 1/4 AG, G 3/8 AG |
|---|---|
| Length [mm] | 49,0, 59,5, 62,5 |
| Colour | rot, grün, braun, blau |
Shared technical data
| Operating pressure | 0 - 35 bar, max. statischer Betriebsdruck (ohne Pulsation) |
|---|---|
| Max. operating pressure | 35 bar |
| Min. operating pressure | 0 bar |
| Sealant | NBR |
| Flow rate measurement | bei 6 bar und Δp = 0,5 bar |
| Unlocking sleeve | Aluminium eloxiert |
| Spring | Edelstahl 1.4310 |
| Housing | Messing Ms58 blank |
| Note on operating pressure | max. statischer Betriebsdruck (ohne Pulsation) |
| Max. medium temperature | 100 °C |
| Min. medium temperature | -20 °C |
| Retaining ring | Edelstahl 1.4310 |
| Max. ambient temperature | 100 °C |
| Min. ambient temperature | -20 °C |
| Country of origin | DE |
| Valve | Messing MS58 blank |
| Customs tariff number | 84818079 |
About Non-interchangeable, quick-lock couplings
Captive quick-connect couplings keep several media circuits apart in tight installations. Coupling and plug carry a colour code and each colour uses its own profile, so a line can only be connected to the circuit it belongs to. Depending on the version, maximum operating pressure is 25 to 35 bar.
What matters when choosing
- Connection: G 1/8, G 3/8, G 1/4 and G 1/2 are offered as male or female threads to suit the existing manifold or hose fitting.
- Colour and plug profile: assign one colour per media circuit. Coupling and plug must share that colour, otherwise the profiles will not mate.
- Sealant: NBR covers ordinary compressed air duties, FKM is the choice for more aggressive media and higher temperatures.
- Housing: plain brass and brass Ms58 for standard use, QPQ treated steel where frequent coupling meets a harsher environment.
- Overall length: allow for 45 to 75 mm when the coupling sits inside a panel or a cable duct.
Typical applications
- Work stations where compressed air and a second medium are tapped side by side
- Test and measuring benches running several separate circuits
- Jig and tool making with changing connection points
- Machines with separate circuits for cooling and control air
- Maintenance interfaces where mixing up lines has to be ruled out
Medium temperature runs from -20 °C to 100 °C and sealing is by NBR or FKM. Production takes place in Germany and Turkey.
| Manufacturer | Riegler |
|---|---|
| GPSR Herstellerdaten | Riegler & Co. KG, Schützenstraße 27, DE-72574 Bad Urach, www.riegler.de |
| Artikelzustand | New |
| Artikel-Authentizität | Original product |
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