Can the Screwed quick-connector, socket with GW BSP in galvanized steel, HOLMBURY, type HS be tightened under static pressure up to 50 bar without risking unscrewing?

Yes. The Screwed quick-connector, socket with GW BSP in galvanized steel, HOLMBURY, type HS may be tightened under static pressure up to 50 bar without risk of unscrewing. The socket includes an additional Oâring on the body that prevents the coupling from unscrewing under pulsation and vibration, and the product documentation explicitly allows tightening the quick coupling under static pressure up to a maximum of 50 bar. Ensure correct assembly, use of the specified NBR sealing (â25Â°C to +100Â°C), and that system fluids and conditions match the stated hydraulic oil application. For higher dynamic/impact loads or pressures above 50 bar during assembly, follow manufacturer guidelines and safety factors.

Is the Screwed quick-connector, socket with GW BSP in galvanized steel, HOLMBURY, type HS suitable for hydraulic oil systems with pulsating vibration?

Yes. The Screwed quick-connector, socket with GW BSP in galvanized steel, HOLMBURY, type HS is suitable for hydraulic oil systems with pulsating vibration. It features an additional O-ring on the socket body to prevent unscrewing under pulsating pressure and vibration. Designed for hydraulic power (hydraulic oil), with NBR sealing (-25Â°C to +100Â°C) and galvanized steel construction, it has a working pressure up to 450 bar (size-dependent), a safety factor of 4:1, and is allowed to be tightened under static pressure up to 50 bar. Flow is provided for a 3 bar pressure drop. Ensure the specific size and system conditions meet the stated pressure and temperature limits.

Screwed quick-connector, socket with GW BSP in galvanized steel, HOLMBURY, type HS

All products, Hydraulic quick couplings/

Additional information

Material	CS – steel (cast iron)

Screw-on quick coupling – socket, type HS with internal BSP thread. It has an additional O-ring on the socket body that prevents the quick coupling from unscrewing in situations of pulsating pressure and vibration. Tightening the quick coupling under static pressure is allowed up to a maximum of 50 bar. Application: hydraulic power (hydraulic oil). Material: galvanized steel. Socket sealing: NBR (operating temperature from -25°C to +100°C). Working pressure: up to 450 bar (depending on the size of the quick coupling). Safety factor 4:1. Flow has been provided for a pressure drop of 3 bar.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HQ-HS06-F-04G	Screw socket HS 1/4", G 1/4" BSP, nitrile seal	-	450	In stock	Enquiry
HQ-HS10-F-06G	Screw socket HS 3/8", G 3/8" BSP, nitrile seal	-	450	In stock	Enquiry
HQ-HS12-F-06G	Screw socket HS 1/2", G 3/8" BSP, nitrile seal	-	400	In stock	Enquiry
HQ-HS12-F-08G	Screw socket HS 1/2", G 1/2" BSP, nitrile seal	-	400	In stock	Enquiry
HQ-HS19-F-12G	Screw socket HS 3/4", G 3/4" BSP, nitrile seal	-	400	In stock	Enquiry
HQ-HS25-F-16G	Screw socket HS 1", GW 1" BSP, nitrile seal	-	300	In stock	Enquiry
HQ-HS32-F-20G	Screw socket HS 1.1/4", GW 1.1/4" BSP, nitrile seal	-	300	In stock	Enquiry

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Screw-on quick coupling – socket, type HS with internal BSP thread. It has an additional O-ring on the socket body that prevents the quick coupling from unscrewing in situations of pulsating pressure and vibration. Tightening the quick coupling under static pressure is allowed up to a maximum of 50 bar. Application: hydraulic power (hydraulic oil). Material: galvanized steel. Socket sealing: NBR (operating temperature from -25°C to +100°C). Working pressure: up to 450 bar (depending on the size of the quick coupling). Safety factor 4:1. Flow has been provided for a pressure drop of 3 bar.