Danfoss / Eaton Cplng ST Series

Description & Features

Constructed from stainless steel with a Buna-N seal, this female half quick disconnect coupling is designed for reliable fluid transfer across demanding industrial environments. The Danfoss / Eaton Cplng ST Series features a push-to-connect end with a 3/4" NPTF port and a straight-thru valve type, supported by a ball lock internal connection for secure engagement without the need for special tools.

Rated for flow up to 66 gallons per minute and operable down to -40°F minimum working temperature, this coupling is well-suited for applications including injection molding, pressure washing, steam cleaning, marine, medical, and food and beverage fluid transfer systems. The design exceeds ISO 16028 operating pressures, making it a dependable choice where performance consistency matters.

SKU: LL6S31

Supplier Part Number (MPN): LL6S31

Specifications

Alternate Part Numbers
Alternate Part Number MINO-00015X14244
Application
Fluid Transfer, Chemical, Food and Beverage, Injection Molding, Marine, Medical, Pressure Washing, Steam Cleaning
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13553
End Gender 2
13555
End Size 2
0.75
End Type 1
Push to Connect
End Type 2
NPTF
Features
Quick connect and disconnect|No need for special tools|Exceeds ISO 16028 operating pressures
Flow Rate1
66 gallons per minute
ICC
Quick Disconnect Couplings
Internal Connection Type
Ball Lock
Item Type
Female Half
Language
English
Minimum Working Temperature
-40
Net Pack Quantity Units
EA
Port Size
3/4
Product Material
Stainless Steel
Product Width
1.72
Safety locking Mechanism
None
Seal Material
Buna-N
Sub Brand
Hansen
Supplier Part Number
LL6S31
Valve Type
Straight Thru
Product Weight
0.62 lbs

Product Questions & Answers (1)

Question by: Randy R on Mar 23, 2026, 9:25 PM
What kind of stuff can I run through this thing? I'm using it for some pressure washing but want to make sure it can handle the soap and degreaser.
Answer by: Customer Support on Mar 25, 2026, 6:06 AM
Designed for broad compatibility, this coupling can be used in fluid transfer applications including chemical, food and beverage, and medical uses. Just be sure to verify that your specific soaps and degreasers are compatible with stainless steel and Buna-N seals.