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Danfoss / Eaton Cplng ST Series

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Description & Features

This Danfoss / Eaton Hansen ST Series quick disconnect coupling socket is a female half, designed for fluid transfer applications. Constructed from stainless steel with Buna-N seals, it ensures compatibility with a range of media.

This quick connect and disconnect coupling features a push-to-connect end type and a 1/2 NPTF end size. It's suitable for chemical, food and beverage, injection molding, marine, medical, pressure washing, and steam cleaning applications.

It features a ball lock internal connection and a 22-gallon-per-minute flow rate. This coupling eliminates the need for special tools and exceeds ISO 16028 operating pressures.

SKU: LL4S26

Supplier Part Number (MPN): LL4S26

Specifications

Brand
Danfoss
Connection Size 1
1/2 in
Connection Size 2
1/2 in
Connection Type
Female BSP
Connection Type 1
Female BSPP
Connection Type 2
Female BSPP
Dimensions
1.34 in Dia x 1.91 in L
Fitting Type
Coupling
Fluid Compatibility
Versatile Fluids
Hex Size
1.13 in
Latch Type
Push/Pull
Material
Stainless Steel
Material Construction
Stainless Steel
Maximum Operating Pressure
3600 psi
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
ST Series
Thread Size
1/2-14
Valve Type
Straight

Product Questions & Answers (1)

Question by: Frank A on Feb 13, 2026, 5:24 PM
How quick can you hook and unhook these? Seems like I'm always fighting with the ones I got now.
Answer by: Customer Support on Feb 14, 2026, 6:24 PM
This Eaton/Danfoss ST Series coupling allows for quick connection and disconnection, and it doesn't require any special tools.

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