Stainless steel DN 40 hydraulic coupling socket with G 1 1/4 inch female threads. They are typically used for liquid lines to quickly connect and disconnect secure connections.
The G 1 1/4 inch female threads allow for it to be threaded onto a matching male threaded part. The maximum operating pressure is 110 bar (1595 psi). The coupling is suitable for temperatures between -25 to 200 °C (-13 to 392 °F). The seal material is FKM. The housing material is stainless steel 306l (1.4404). The coupling complies with the ISO 7241-1 B standard.
Pros:
- Adheres to ISO 7241-1 B worldwide standard
- They can be combined with other manufacturers, such as Parker, Rectus, Cejn, Stucci, Faster or Snap-Tite
- Brass or stainless steel couplings are suitable for applications with high demand for chemical resistance
Specifications
Connection size : 1 1/4 inch
Nominal diameter (mm) : 40
Plug diameter : 44.5 mm
Socket diameter : 75 mm
Connection type : Inner thread cylindrical BSPP-G
Material : Stainless steel
Seal material : FKM (FPM)
Max pressure at 20 °C (bar) : 110
Min temperature (°C) : -25
Max temperature (°C) : 200
Standard : ISO 7241-1 B
Quality of material : Stainless steel 306L (1.4404)
Shape : Coupling (female)
With dust cap : No

![FKM O-ring 5 x 1mm (OD 7mm) 80 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_5e29b34c-ec1f-49ee-a107-6c1cf37837d1.webp)
![FKM O-ring 8 x 1.9mm (OD 11.8mm) 80 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_dc3b6201-8fc1-4bae-8a45-6c00a3954c95.webp)
![NBR O-ring 9 x 6mm (OD 21mm) 70 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/s22pt__n.93981eec.webp)
![EPDM O-ring 9 x 1.5mm (OD 12mm) 70 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_5ce887fc-0734-4905-b97e-6b06af60e1f7.webp)
Reviews
There are no reviews yet.