DANFOSS / EATON SS 1/2 ST SERIES SOCKET X 1/2 MNPT

Description & Features

Designed for demanding fluid transfer applications, the Danfoss / Eaton SS 1/2 ST Series Socket x 1/2 MNPT is a stainless steel quick disconnect coupling socket with a ball lock internal connection. The female half connects via push-to-connect and mates to a 1/2" male NPT port, supporting flow rates up to 22 gallons per minute and operating in temperatures as low as -40°F.

Buna-N seals and a straight-through valve design make this coupling well-suited for use across a broad range of industries, including chemical processing, food and beverage, injection molding, medical, marine, pressure washing, and steam cleaning. No special tools are required for connection or disconnection, and the design exceeds ISO 16028 operating pressure standards.

Part of the Hansen ST Series from Eaton's Aeroquip brand, this coupling is manufactured at the Van Wert, Ohio facility and carries a 1/2" port size.

SKU: LL4S25

Supplier Part Number (MPN): LL4S25

Specifications

Alternate Part Numbers
Alternate Part Number MINO-00015X14194
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
13556
End Size 2
0.50
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
22 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
1/2
Product Material
Stainless Steel
Product Width
1.34
Safety locking Mechanism
None
Seal Material
Buna-N
Sub Brand
Hansen
Supplier Part Number
LL4S25
Valve Type
Straight Thru
Product Weight
0.15 lbs

Product Questions & Answers (1)

Question by: Hubert K on Sep 10, 2025, 7:52 AM
Reckon this'll work okay for pressure washing equipment?
Answer by: Customer Support on Sep 11, 2025, 1:01 PM
It's well-suited for pressure washing, yes. The stainless steel construction and Buna-N seals hold up across a range of temperatures, and it exceeds ISO 16028 operating pressure standards.