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Danfoss / Eaton Cplng HK Series

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Description & Features

This Danfoss / Eaton Cplng HK Series female half quick disconnect coupling is constructed of carbon steel and utilizes a ball lock internal connection type.

Designed for oil and gas applications, this 2-way valve type coupling features a sleeve lock safety locking mechanism and Buna-N seals. It exceeds ISO 16028 operating pressures and offers quick connect and disconnect functionality without the need for special tools. This push-to-connect coupling is certified to Lloyd's Register and ISO 7241-1 Series B standards and offers a flow rate of 7.5 gallons per minute. It has a minimum working temperature of -40 degrees. End 1 is female with push-to-connect type and End 2 is female with NPTF type, with a size of 0.5.

SKU: 4HFR26

Supplier Part Number (MPN): 4HFR26

Specifications

Brand
Aeroquip® by Danfoss
Connection Size 1
1/2 in
Connection Size 2
1/2 in
Connection Style
Manual
Connection Type
FNPT
Connection Type 1
Female NPTF
Connection Type 2
Female NPTF
Dimension Standards
ISO 7241-1 Series B
Dimensions
2.96 in L
Finish
Zinc Trivalent
Fitting Type
Coupling
Fluid Compatibility
Hazardous Oil and Gases
Hex Size
1.13 in
Latch Type
Push/Pull
Material
Steel
Material Construction
Carbon Steel
Maximum Operating Pressure
7000 psi
Operating Temperature
-40 to 250 deg F
Safety Locking Mechanism
Sleeve Lock
Seal Material
NBR
Segment Code
C
Series
HKFR Series
Thread Size
1/2-14
Valve Type
2-Way

Product Questions & Answers (1)

Question by: Wade M on Sep 30, 2025, 3:28 PM
Reckon this would hold up alright in an oil field environment?
Answer by: Customer Support on Oct 2, 2025, 9:48 AM
Yes, these Danfoss/Eaton couplings are designed specifically for oil and gas applications.

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