Quick-connection socket double shut-off DN2.7 with valve, with hose end, brass, series 20KA

Q: Can a Quick-connection socket double shut-off DN2.7 with valve, with hose end, brass, series 20KA be safely used with nitrogen at 35 bar?

Yes . Quick-connection socket double shut-off DN2.7 with valve, with hose end, brass, series 20KA can be safely used with nitrogen at 35 bar, provided the following conditions are met: - The product specification lists working pressure: 35 bar, so the component is rated for that pressure. - Media compatibility: the description explicitly includes nitrogen and other nonâflammable gases. - Materials and seals: brass body, AISI 301/420 steel internal parts and NBR seals are compatible with dry nitrogen in the stated temperature range (â20 Â°C to +100 Â°C). Ensure no oxygen or reactive contaminants are present that could affect NBR. - Operational limits: observe the given flow and pressure-drop data (air: 165 l/min at Pe = 6 bar, Îp = 0.5 bar) and avoid exceedance of dynamic conditions that could cause excessive pressure drop or turbulence. - Do not mix coupling types: double shut-off must not be coupled with single shut-off (valve wonât open). - Installation and safety: use proper hose rated for 35 bar, secure hose end properly, follow torque and assembly guidance, and implement pressure relief and leak-testing procedures before use. If your application involves high temperature, aggressive contaminants, or safety-critical/nitrogen-purging procedures, consult the manufacturer or a pressure-systems engineer for final approval.

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

Additional information

Material	B – brass (bronze)

Quick-connect socket with double shut-off, very small size DN 2.7 series 20KA, with valve. Available in two variants: with a ribbed end for hose and with a nut end for thermoplastic hose. Designed for water, air, nitrogen, and other non-flammable gases. The double shut-off version has a valve in the socket and in the plug, and it is not permissible to connect the single shut-off version with the double shut-off version, as the valve will not open. Flow rate: 165 l/min, Pe = 6 bar, Δp=0.5 bar – air, 3 l/min, Δp=1 bar, KV=0.18 – water. Working pressure: 35 bar. Material: brass, AISI 301 steel (spring and ring), AISI 420 steel (balls). Sealing: NBR. Operating temperature: from -20°C to +100°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
RE-20KBKO04MPX	Quick coupling socket 20KB DN2.7, for hose 3x4 mm, brass, NBR	3	35	In stock	Enquiry
RE-20KBKO06MPX	Quick coupling socket 20KB DN2.7, for hose 4x6 mm, brass, NBR	4	35	In stock	Enquiry
RE-20KBTF04MPX	Quick coupling socket 20KB DN2.7, for 4 mm hose, brass, NBR	4	35	In stock	Enquiry

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Quick-connect socket with double shut-off, very small size DN 2.7 series 20KA, with valve. Available in two variants: with a ribbed end for hose and with a nut end for thermoplastic hose. Designed for water, air, nitrogen, and other non-flammable gases. The double shut-off version has a valve in the socket and in the plug, and it is not permissible to connect the single shut-off version with the double shut-off version, as the valve will not open. Flow rate: 165 l/min, Pe = 6 bar, Δp=0.5 bar – air, 3 l/min, Δp=1 bar, KV=0.18 – water. Working pressure: 35 bar. Material: brass, AISI 301 steel (spring and ring), AISI 420 steel (balls). Sealing: NBR. Operating temperature: from -20°C to +100°C.