Is the Two-way quick-connection plug with hose end, brass, series 25 DN 7.4 suitable for sampling corrosive liquids at +90Â°C?

Two-way quick-connection plug with hose end, brass, series 25 DN 7.4 is generally suitable for high-temperature use up to +100Â°C, and its materials (brass body and valves, AISI 301 spring) tolerate elevated temperatures. However, suitability for sampling corrosive liquids at +90Â°C depends primarily on chemical compatibility with brass and the NBR (nitrile) sealing. - Brass: susceptible to dezincification and corrosion with aggressive acids, chlorides, ammonia, and some solvents. Many strongly corrosive media will attack brass at elevated temperature. - NBR sealing: performs well with oils and many nonpolar fluids but has poor resistance to hot ketones, esters, strong acids, chlorinated hydrocarbons and some polar solvents, especially at high temperatures; at +90Â°C its chemical resistance and mechanical life are reduced. - AISI 301 spring: good general corrosion resistance but can corrode in highly oxidizing or chloride-rich environments. Conclusion: Two-way quick-connection plug with hose end, brass, series 25 DN 7.4 is NOT recommended for routine sampling of strongly corrosive liquids at +90Â°C unless you verify the specific chemical compatibility of the liquid with brass and NBR. For corrosive, hot media consider couplings with corrosion-resistant materials (e.g., stainless steels like 316L or special alloys) and FFKM/EPDM/Viton seals rated for the chemical and temperature conditions.

Can the Two-way quick-connection plug with hose end, brass, series 25 DN 7.4 be used for continuous operation at -15Â°C with NBR seals?

Yes. The Two-way quick-connection plug with hose end, brass, series 25 DN 7.4 can be used for continuous operation at â15Â°C with NBR seals. The productâs specified operating temperature range is â20Â°C to +100Â°C (depending on medium), so â15Â°C falls within allowable limits for NBR sealing. Ensure the specific process medium and pressure conditions do not adversely affect seal performance, and verify any dynamic/frequent cycling requirements with the manufacturer if extreme durability is critical.

Can the Two-way quick-connection plug with hose end, brass, series 25 DN 7.4 handle 35 bar intermittent pneumatic tool use?

Yes. The Two-way quick-connection plug with hose end, brass, series 25 DN 7.4 can handle intermittent pneumatic tool use at 35 bar because its specified working pressure is 35 bar and itâs designed for pneumatic tools. Key supporting details: robust brass construction with AISI 301 spring and NBR sealing, ULTRA-FLO valve delivering high flow (780 l/min at Pe=6 bar, Îp=0.5 bar) suitable for tool air demand, and an operating temperature range of â20Â°C to +100Â°C. For safe intermittent use at the maximum pressure, ensure correct hose/end fittings, compatible medium, regular inspection of seals/spring, and that duty cycles and dynamic loads conform to manufacturer recommendations.

Two-way quick-connection plug with hose end, brass, series 25 DN 7.4

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

Additional information

Material	B – brass (bronze)

Two-sided shut-off quick coupling plug series 25 DN 7.4 with hose end, characterized by a robust construction, ensuring perfect sealing and a very high flow rate due to the use of the ULTRA-FLO valve. Application: laboratory equipment, sampling of liquids and gases, pneumatic tools. Working pressure: 35 bar. Flow rate: 780 l/min, Pe=6 bar, Δp=0.5 bar, air. Material: brass (plug, plug end), brass (valve), AISI 301 steel (spring). Sealing: NBR. Operating temperature: from -20°C to +100°C, depending on the medium.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
RE-25SBTF06MPX	Quick coupling plug 25SB DN7.4, for hose 6 mm, brass, NBR	6	35	In stock	Enquiry
RE-25SBTF08MPX	Quick coupling plug type 25 DN 7.4 double-sided shut-off with 8 mm hose end, brass	8	35	In stock	Enquiry
RE-25SBTF09MPX	Quick coupling plug 25SB DN7.4, for 9 mm hose, brass, NBR	10	35	In stock	Enquiry
RE-25SBTF10MPX	Quick coupling plug type 25 DN 7.4 double-sided shut-off with a 10 mm hose end, brass	10	35	In stock	Enquiry
RE-25SBTF13MPX	Quick coupling plug 25SB DN7.4, for hose 13 mm, brass, NBR	12	35	In stock	Enquiry

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Two-sided shut-off quick coupling plug series 25 DN 7.4 with hose end, characterized by a robust construction, ensuring perfect sealing and a very high flow rate due to the use of the ULTRA-FLO valve. Application: laboratory equipment, sampling of liquids and gases, pneumatic tools. Working pressure: 35 bar. Flow rate: 780 l/min, Pe=6 bar, Δp=0.5 bar, air. Material: brass (plug, plug end), brass (valve), AISI 301 steel (spring). Sealing: NBR. Operating temperature: from -20°C to +100°C, depending on the medium.