Is the Stainless Steel Hose End for High-Pressure Gases, Thread per DIN477, Type ZBW170 compatible with oxygen and carbogen service?

Yes. The Stainless Steel Hose End for High-Pressure Gases, Thread per DIN477, Type ZBW170 is compatible with oxygen and carbogen service. The product description explicitly states it is engineered for use with oxygen and carbogen, offers a secure G-3/4" (3/4" BSP) internal thread compliant with PN-81/M-69229 (DIN477-1 no. 9), and is manufactured from AISI 304 stainless steel with a brass nut, providing corrosion resistance, mechanical strength, and a reliable, leak-free connection suitable for medical, laboratory, and industrial gas handling.

Can the Stainless Steel Hose End for High-Pressure Gases, Thread per DIN477, Type ZBW170 be sterilized for use in medical oxygen systems without degrading its AISI 304 stainless steel or brass components?

Stainless Steel Hose End for High-Pressure Gases, Thread per DIN477, Type ZBW170 can be sterilized for use in medical oxygen systems, but with caveats tied to chosen sterilization method and conditions. The fitting’s body is AISI 304 stainless steel and the nut is brass; both offer good corrosion resistance and mechanical strength, but they respond differently to sterilization processes: - Autoclaving (steam, 121–134°C): AISI 304 tolerates standard autoclave cycles well; brass can tolerate steam but repeated high-temperature steam cycles may accelerate dezincification or surface tarnish over long term, especially in presence of chlorides. Ensure full drying and avoid prolonged trapped moisture. - Dry heat (higher temperatures): AISI 304 is generally stable, but prolonged exposure to very high dry-heat temperatures can affect temper and surface oxide. Brass may discolor and experience mechanical property changes if temperatures are excessive. - Chemical sterilants (e.g., high-concentration peracetic acid, hydrogen peroxide, or chlorine-based agents): AISI 304 resists many chemicals but can be susceptible to pitting or stress corrosion in aggressive oxidizers or chloride-rich solutions. Brass is more chemically reactive; some agents can corrode or dezincify it. Use validated, compatible chemicals at recommended concentrations and rinse thoroughly. - Gas sterilization (ethylene oxide): Compatible with both materials if residuals and aeration are managed, but process validation for medical oxygen service is required. - Oxygen compatibility: The product is engineered for oxygen use; avoid organic residues and ensure cleaning procedures eliminate oils/contaminants before sterilization to prevent ignition risk. Recommendation: Select sterilization methods validated for mixed AISI 304/brass assemblies (prefer autoclave or EO with appropriate controls), follow manufacturer cleaning/sterilization protocols, perform compatibility testing for repeated cycles, and inspect for corrosion or dezincification over service life. For critical medical oxygen systems, document validation and consider specifying all-stainless alternatives if long-term resistance to aggressive sterilization is required.

A fitting for hoses for gases high-pressure with thread acc. to DIN477, steel stainless, type ZBW170

All products, Technical gases hoses/

Additional information

Material	SS – stainless steel

A fitting for hoses thermoplastic and hydraulic intended for gases high-pressure with thread internal G-3/4″ (3/4″ – BSP), Connection acc. to PN-81/M-69229 (DIN477-1 nr 9). purpose: oxygen, carbogen. Material: Material: steel AISI 304 – A fitting, brass – A nut.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TI-ZBW170-12-04-SS-MO	Fitting 3/4" BSP female DIN477, for hose 1/4", AISI 304 (brass nut)	6	-	In stock	Enquiry
TI-ZBW170-12-05-SS-MO	Fitting 3/4" BSP female DIN477, for hose 5/16", AISI 304 (brass nut)	8	-	In stock	Enquiry
TI-ZBW170-12-06-SS-MO	Fitting 3/4" BSP female DIN477, for hose 3/8", AISI 304 (brass nut)	10	-	In stock	Enquiry
TI-ZBW170-12-08-SS-MO	Fitting 3/4" BSP female DIN477, for hose 1/2", AISI 304 (brass nut)	12	-	In stock	Enquiry

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A fitting for hoses thermoplastic and hydraulic intended for gases high-pressure with thread internal G-3/4″ (3/4″ – BSP), Connection acc. to PN-81/M-69229 (DIN477-1 nr 9). purpose: oxygen, carbogen. Material: Material: steel AISI 304 – A fitting, brass – A nut.