Is the HOLMBURY HS Galvanized Steel Socket Quick-Connector with BSP Female Thread safe to tighten under static pressure up to 50 bar and suitable for systems up to 450 bar?

Yes. The HOLMBURY HS Galvanized Steel Socket Quick-Connector with BSP Female Thread is designed to be tightened under static pressure up to 50 bar and is rated for working pressures up to 450 bar (depending on size). It features galvanized steel construction, NBR sealing, an additional O‑ring to prevent accidental loosening under pulsation/vibration, and a 4:1 safety factor, making it suitable and safe for hydraulic oil systems within the specified pressure and temperature ranges.

Can the HOLMBURY HS Galvanized Steel Socket Quick-Connector with BSP Female Thread maintain sealing and vibration resistance in hydraulic systems operating between -25°C and +100°C?

Yes. The HOLMBURY HS Galvanized Steel Socket Quick-Connector with BSP Female Thread is specified to maintain sealing and resist vibration in hydraulic systems from -25°C to +100°C. Key features supporting this: - NBR internal seal rated for the –25°C to +100°C temperature range, providing reliable sealing across those temperatures. - Additional O-ring on the socket body to prevent accidental loosening under pulsating pressure or vibration, enhancing retention and leak resistance in dynamic environments. - Robust galvanized steel construction and a 4:1 safety factor (working pressures up to 450 bar depending on size) that ensure mechanical integrity under high-pressure and vibratory conditions. - Capability to be tightened under static pressure to 50 bar and designed for optimized flow with minimal pressure drop, supporting stable system performance. Taken together, these design elements indicate the connector will maintain seal integrity and vibration resistance within the stated temperature range when used in hydraulic oil systems and within the specified pressure limits.

HOLMBURY HS Galvanized Steel Socket Quick-Connector with BSP Female Thread

All products, Hydraulic quick couplings/

Additional information

Material	CS – steel (cast iron)

The screw-on quick coupling socket type HS with internal BSP thread is a robust and reliable solution designed for demanding hydraulic applications. Manufactured from high-quality galvanized steel, it ensures exceptional durability and resistance to wear, while the integrated NBR sealing guarantees secure performance within a wide temperature range from -25°C to +100°C. An additional O-ring on the socket body provides enhanced safety by preventing accidental loosening under pulsating pressure or vibration, ensuring uninterrupted operation even in challenging conditions. The coupling allows tightening under static pressure up to 50 bar and delivers outstanding performance with working pressures reaching up to 450 bar, depending on the size, with a safety factor of 4:1 for maximum reliability. Engineered for hydraulic oil systems, it offers optimized flow characteristics with a controlled pressure drop of just 3 bar, making it an efficient choice for maintaining system stability and performance. This quick coupling combines strength, safety, and efficiency, making it an ideal component for professional hydraulic power solutions.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
HQ-HS06-F-04G	Screw socket HS 1/4", G 1/4" BSP, nitrile seal	-	450
HQ-HS10-F-06G	Screw socket HS 3/8", G 3/8" BSP, nitrile seal	-	450
HQ-HS12-F-06G	Screw socket HS 1/2", G 3/8" BSP, nitrile seal	-	400
HQ-HS12-F-08G	Screw socket HS 1/2", G 1/2" BSP, nitrile seal	-	400
HQ-HS19-F-12G	Screw socket HS 3/4", G 3/4" BSP, nitrile seal	-	400
HQ-HS25-F-16G	Screw socket HS 1", GW 1" BSP, nitrile seal	-	300
HQ-HS32-F-20G	Screw socket HS 1.1/4", GW 1.1/4" BSP, nitrile seal	-	300

The screw-on quick coupling socket type HS with internal BSP thread is a robust and reliable solution designed for demanding hydraulic applications. Manufactured from high-quality galvanized steel, it ensures exceptional durability and resistance to wear, while the integrated NBR sealing guarantees secure performance within a wide temperature range from -25°C to +100°C. An additional O-ring on the socket body provides enhanced safety by preventing accidental loosening under pulsating pressure or vibration, ensuring uninterrupted operation even in challenging conditions. The coupling allows tightening under static pressure up to 50 bar and delivers outstanding performance with working pressures reaching up to 450 bar, depending on the size, with a safety factor of 4:1 for maximum reliability. Engineered for hydraulic oil systems, it offers optimized flow characteristics with a controlled pressure drop of just 3 bar, making it an efficient choice for maintaining system stability and performance. This quick coupling combines strength, safety, and efficiency, making it an ideal component for professional hydraulic power solutions.