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HK Series Industrial Interchange Series B Dust Cap, -04 Coupling

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Description & Features

When searching for dependable components for fluid transfer consider the Eaton HK Series Steel Quick Disconnects. This product maintains ISO standard 7241-1 Series B dimensional compliance and features a self-sealing poppet valve ideal for both high and low-pressure applications.

Utilizing Buna-N as the standard seal material this dust cap also offers seal options in PTFE Neoprene FKM EPDM and Kalrez. These materials support a wide operational temperature range from -65F to +400F suitable for various industrial settings.

Designed with PTFE backup rings in the socket (female connection) this dust cap ensures durability and reliability. The coupling size is -04 featuring a 0.25 end size and a female end gender with no thread sealant applied.

Supplier Part Number: PPDC2HK

Specifications

Brand
Danfoss
Color
Black
Fitting Type
Dust Cap
For Use With
HK Series Couplings
Material
Plastic
Material Construction
Plastic
Series
HK Series

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Product Questions & Answers (3)

Question by: Troy M on May 2, 2025, 9:25 PM
Reckon this cap will hold up to hydraulic fluid and the summer heat without cracking?
Answer by: Customer Support on May 3, 2025, 9:34 PM
Designed with Buna-N as the standard seal material, this dust cap offers seal options in PTFE, Neoprene, FKM, EPDM, and Kalrez. These materials support a wide operational temperature range from -65F to +400F.
Question by: Bonnie H on Oct 24, 2025, 7:05 PM
what seal material comes standard on this dust cap, and does it hold up in colder temps?
Answer by: Customer Support on Oct 26, 2025, 6:44 AM
Buna-N is the standard seal material on this one. It's rated from -40°F up to +250°F, so it handles cold environments pretty well as long as you're not pushing past those limits. If you're running in extreme cold below -40°F, there are other seal options like Neoprene or EPDM that can go down to -65°F.
Question by: Ricky W on Nov 25, 2025, 7:03 PM
got a -04 (1/4) HK Series setup, is this dust cap the right size for it?
Answer by: Customer Support on Nov 27, 2025, 6:43 AM
For a -04 coupling size with a 0.25 inch end size, this cap matches that sizing and it is the female end version in the HK Series Industrial Interchange, ISO 7241-1 Series B pattern.

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