Is the Hose end for high-pressure gases with W21.8x1/14" thread according to DIN477, stainless steel, type ZWW170 compatible with ammonia and CO2?

Yes. Hose end for high-pressure gases with W21.8x1/14" thread according to DIN477, stainless steel, type ZWW170 is listed as intended for ammonia and carbon dioxide (CO2). The fitting body is AISI 304 stainless steel and the nut is brass; these materials are commonly compatible with ammonia and CO2 under typical service conditions. Notes and cautions: - AISI 304 has good general corrosion resistance but can be susceptible to stress corrosion cracking in certain ammonia environments and to localized corrosion in chloride-containing environments; verify operating temperature, pressure, and presence of contaminants. - Brass components can be susceptible to dezincification in aggressive ammonia-containing or high-purity gas systems; confirm alloy grade and assess if dezincification resistance is required. - For high-purity or cryogenic CO2, or systems with cyclic pressures, consult detailed specifications and perform application-specific compatibility checks (pressure ratings, seals, and standards compliance). If you need a definitive approval for your exact operating conditions (pressure, temperature, gas purity, duty cycle), provide those parameters so a materials or application engineer can confirm suitability.

Can the Hose end for high-pressure gases with W21.8 x 1/14" thread according to DIN477, stainless steel, type ZWW170 be used with helium and argon?

Yes. The Hose end for high-pressure gases with W21.8x1/14" thread according to DIN477, stainless steel, type ZWW170 can be used with helium and argon. The product description explicitly lists helium and argon among intended media, and the fitting is manufactured from AISI 304 stainless steel (fitting) with a brass nut, materials suitable for these inert gases under typical pressure and temperature ranges. Ensure compatibility with your systemâs operating pressure, temperature, and any purity requirements before use.

Hose end for high-pressure gases with W21.8×1/14″ thread according to DIN477, stainless steel, type ZWW170

All products, Technical gases hoses/

Hose end for high-pressure gases with W21.8x1/14" thread according to DIN477, stainless steel, type ZWW170

Additional information

Material	SS – stainless steel

End fitting for thermoplastic and rubber hydraulic hoses for high-pressure gases with internal Whitworth thread W21.8 x 1/14″, connection according to PN-81/M-69229 (DIN477-1 no. 6). Intended for: among others: ammonia, argon, carbon dioxide, helium. Material: AISI 304 steel – fitting, brass – nut.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TI-ZWW170-21-04-SS-MO	End fitting GW W21.8 DIN477, for hose 1/4", AISI 304 (brass nut)	6	-	In stock	Enquiry
TI-ZWW170-21-05-SS-MO	End fitting GW W21.8 DIN477, for hose 5/16", AISI 304 (brass nut)	8	-	In stock	Enquiry
TI-ZWW170-21-06-SS-MO	End fitting GW W21.8 DIN477, for hose 3/8", AISI 304 (brass nut)	10	-	In stock	Enquiry
TI-ZWW170-21-08-SS-MO	End fitting GW W21.8 DIN477, for hose 1/2", AISI 304 (brass nut)	12	-	In stock	Enquiry

Do you need a larger quantity of products or a bespoke quote?

Call us: +48 61 653 02 22 or email us: tubes@tubes-international.com

SEND ENQUIRY

End fitting for thermoplastic and rubber hydraulic hoses for high-pressure gases with internal Whitworth thread W21.8 x 1/14″, connection according to PN-81/M-69229 (DIN477-1 no. 6). Intended for: among others: ammonia, argon, carbon dioxide, helium. Material: AISI 304 steel – fitting, brass – nut.