Is the TEMA Swivel Brass Coupling with Metric FG / BSP FG Threads compatible with standard hydraulic oils and safe to operate between -40°C and +90°C?

Yes. The TEMA Swivel Brass Coupling with Metric FG / BSP FG Threads is engineered for use with hydraulic oil and is safe to operate across the specified temperature range. Its brass body, hardened steel internal spindle, galvanized steel nut and NBR seals provide compatibility with standard hydraulic oils and reliable, leak-free performance from −40°C to +90°C.

Can the TEMA Swivel Brass Coupling with Metric FG / BSP FG Threads handle continuous operation at 60 rpm without increased wear or reduced sealing performance?

TEMA Swivel Brass Coupling with Metric FG / BSP FG Threads can operate continuously at 60 rpm without increased wear or reduced sealing performance, provided normal hydraulic operating conditions are respected. The product description specifies a maximum rotational speed of 60 rpm and highlights exceptionally low torque, a hardened steel internal spindle, and a robust brass body—features that support smooth, continuous rotation and long service life. The galvanized steel nut improves wear and corrosion resistance, and the NBR sealing is rated for –40°C to +90°C, ensuring reliable leak-free performance across typical temperature ranges. However, longevity at continuous 60 rpm depends on system factors: fluid cleanliness and compatibility, operating pressure, adequate lubrication, alignment and mounting to avoid side loads, and adherence to maintenance intervals. If those conditions are met and the coupling is used within its specified pressure and temperature limits, continuous operation at 60 rpm should not cause accelerated wear or compromise sealing.

TEMA Swivel Brass Coupling with Metric FG / BSP FG Threads

All products, Hydraulic rotary unions/

Additional information

Material	B – brass (bronze)

This compact rotary coupling is designed for applications where a reliable rotary connection is essential and where reducing hose stress significantly extends system durability. Its small dimensions and exceptionally low torque ensure smooth operation even in demanding conditions, while the maximum rotational speed of 60 rpm makes it ideal for controlled, precise movements. Engineered for use with hydraulic oil, the coupling combines a robust brass body with a hardened steel internal spindle, delivering strength and long-lasting performance. The galvanized steel nut enhances resistance to wear and corrosion, while the NBR sealing guarantees secure, leak-free operation across a wide temperature range from -40°C to +90°C. This carefully balanced construction ensures dependable functionality, making the coupling a perfect choice for hydraulic systems that require efficiency, reliability, and durability in compact form.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
TA-R-500W	Rotary joint DN11 GZ M18x1.5 / GZ 1/2"	-	250
TA-R-500W5	Rotary joint DN11 GZ M22x1.5 / GZ 1/2"	-	250
TA-R-500W6	Rotary joint DN11 GZ M24x1.5 / GZ 1/2"	-	250

This compact rotary coupling is designed for applications where a reliable rotary connection is essential and where reducing hose stress significantly extends system durability. Its small dimensions and exceptionally low torque ensure smooth operation even in demanding conditions, while the maximum rotational speed of 60 rpm makes it ideal for controlled, precise movements. Engineered for use with hydraulic oil, the coupling combines a robust brass body with a hardened steel internal spindle, delivering strength and long-lasting performance. The galvanized steel nut enhances resistance to wear and corrosion, while the NBR sealing guarantees secure, leak-free operation across a wide temperature range from -40°C to +90°C. This carefully balanced construction ensures dependable functionality, making the coupling a perfect choice for hydraulic systems that require efficiency, reliability, and durability in compact form.