Can the Screwed quick-connector with GW BSP, zinc-nickel coated carbon steel socket, HOLMBURY type HFT be tightened under residual pressure up to 350 bar without leakage or damage?

Yes. The Screwed quick-connector with GW BSP, zinc-nickel coated carbon steel socket, HOLMBURY type HFT may be tightened under residual pressure up to 350 bar without leakage or damage. The HFT series is a leak-free flat-face design intended for high pressure spikes, includes an additional O-ring on the socket body to prevent unscrewing from vibration, and explicitly permits tightening of quick couplings under residual pressure up to 350 bar. Materials and sealing (carbon steel with zincânickel coating; NBR) and an overall working pressure rating up to 550 bar support safe operation within the stated 350 bar residual-pressure tightening allowance.

Screwed quick-connector with GW BSP, zinc-nickel coated carbon steel socket, HOLMBURY type HFT

All products, Hydraulic quick couplings/

Additional information

Material	CS – steel (cast iron)

Quick coupling socket series HFT with internal BSP thread. Leak-free flat-face type connection. Used in applications with high pressure spikes. Features an additional o-ring on the socket body to prevent unscrewing due to vibrations. Tightening of quick couplings under residual pressure up to 350 bar is permitted. The quick couplings have a zinc-nickel coating, providing several times greater corrosion resistance than a zinc coating. Compliant with API 16D standard (for BOP applications). Material: carbon steel with zinc-nickel coating. Sealing: NBR. Operating temperature: from -40°C to +106°C. Working pressure: up to 550 bar (depending on the size of the quick coupling). Flow is specified for a pressure drop of 3 bar.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HQ-HFT10-F-06G	Screw socket FF HFT DN10 with G 3/8", nitrile seal.	-	550	In stock	Enquiry
HQ-HFT10-F-08G	Screw socket FF HFT DN10 with G 1/2", nitrile seal	-	550	In stock	Enquiry
HQ-HFT12-F-08G	Screw socket FF HFT DN12 with G1/2", nitrile seal	-	550	In stock	Enquiry
HQ-HFT12-F-12G	Screw socket FF HFT DN12 with G 3/4", nitrile seal	-	550	In stock	Enquiry
HQ-HFT16-F-12G	Screw socket FF HFT DN16 with G 3/4", nitrile seal	-	550	In stock	Enquiry
HQ-HFT19-F-16G	Screw socket FF HFT DN19 with G1" thread, nitrile seal	-	500	In stock	Enquiry
HQ-HFT25-F-20G	Screw socket FF HFT DN25 with G1.1/4", nitrile seal	-	470	In stock	Enquiry
HQ-HFT32-F-24G	Screw socket FF HFT DN32 with G1.1/2", nitrile seal	-	400	In stock	Enquiry

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Quick coupling socket series HFT with internal BSP thread. Leak-free flat-face type connection. Used in applications with high pressure spikes. Features an additional o-ring on the socket body to prevent unscrewing due to vibrations. Tightening of quick couplings under residual pressure up to 350 bar is permitted. The quick couplings have a zinc-nickel coating, providing several times greater corrosion resistance than a zinc coating. Compliant with API 16D standard (for BOP applications). Material: carbon steel with zinc-nickel coating. Sealing: NBR. Operating temperature: from -40°C to +106°C. Working pressure: up to 550 bar (depending on the size of the quick coupling). Flow is specified for a pressure drop of 3 bar.