Is the Quick connector DN5 without valve, with hose end, brass, series 21KA suitable for use at 35 bar and temperatures from -20Â°C to +100Â°C?

Yes. The Quick connector DN5 without valve, with hose end, brass, series 21KA is suitable for use at 35 bar and temperatures from -20Â°C to +100Â°C. The product description specifies a working pressure of 35 bar, brass construction, and an operating temperature range of -20Â°C to +100Â°C, and the hose-end variant is one of the available configurations. Ensure compatibility with your hose type and media, and verify any application-specific requirements (e.g., dynamic loads, chemical compatibility, safety margins).

Can the Quick connector DN5 without valve, with hose end, brass, series 21KA be used with thermoplastic hoses using the nut end variant?

Yes. Quick connector DN5 without valve, with hose end, brass, series 21KA Format itself is the corrugated hose-end variant; however the same plug series 21KA is also offered with a nut end specifically for thermoplastic hose. To use thermoplastic hoses you should select the nut-end variant of the Quick coupling plug (series 21KA) rather than the corrugated hose-end version. Both variants share material (brass), Eurostandard DN5 dimensions, 35 bar working pressure and -20Â°C to +100Â°C temperature range, so the nut-end model is suitable for thermoplastic hose connection.

Does the Quick connector DN5 without valve, with hose end, brass, series 21KA allow free flow in mini Eurostandard systems?

Yes. Quick connector DN5 without valve, with hose end, brass, series 21KA allows free flow in mini Eurostandard systems. The product description explicitly names it a "Quick coupling plug with free flow, Eurostandard DN5 (MINI)," and the variant "without valve" means there is no internal shut-off mechanism to restrict flow. Its design (DN5 MINI, corrugated hose end) is intended for small-dimension installations requiring high flow efficiency and low pressure drop, so it will permit free flow when connected. Operating limits: up to 35 bar and -20Â°C to +100Â°C; material brass.

Quick connector DN5 without valve, with hose end, brass, series 21KA

All products, General-purpose low-pressure quick couplings/

Additional information

Material	B – brass (bronze)

Quick coupling plug with free flow, Eurostandard DN5 (MINI), series 21KA. The plug is available in two variants: with a corrugated hose end and with a nut end for thermoplastic hose. Widely used in the industry where small dimensions are required along with high flow efficiency and low pressure drop. Working pressure: 35 bar. Material: brass. Operating temperature: from -20°C to +100°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
RE-21SFKO06MXX	Quick coupling plug 21SF DN5, for hose 4x6 mm, brass	4	35	In stock	Enquiry
RE-21SFKO08MXX	Quick coupling plug 21SF DN5, for hose made of 6x8 mm, brass	6	35	In stock	Enquiry
RE-21SFTF04MXX	Quick coupling plug 21SF DN5, for 4 mm hose, brass	4	35	In stock	Enquiry
RE-21SFTF05MXX	Quick coupling plug 21SF DN5, for 5 mm hose, brass	5	35	In stock	Enquiry
RE-21SFTF06MXX	Quick coupling plug 21SF DN5, for 6 mm hose, brass	6	35	In stock	Enquiry
RE-21SFTF08MXX	Quick coupling plug 21SF DN5, for 8 mm hose, brass	8	35	In stock	Enquiry
RE-21SFTF09MXX	Quick coupling plug 21SF DN5, for hose 9 mm, brass	10	35	In stock	Enquiry
RE-21SFTF10MXX	Quick coupling plug 21SF DN5, for hose 10 mm, brass	10	35	In stock	Enquiry

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Quick coupling plug with free flow, Eurostandard DN5 (MINI), series 21KA. The plug is available in two variants: with a corrugated hose end and with a nut end for thermoplastic hose. Widely used in the industry where small dimensions are required along with high flow efficiency and low pressure drop. Working pressure: 35 bar. Material: brass. Operating temperature: from -20°C to +100°C.