60° Cone BSP Adapters | Parker K4 Adapters

Parker K4 (BSP) adapters are typically used as hose adapters on equipment designed and/or manufactured throughout Europe, especially equipment with ties to the UK, Scandinavia, the Netherlands, Spain and Italy. BSP cone adapters are similar in function to NPSM (07 Adapters) but with BSPP threads.

The male BSP cone end of the straight fittings can also be used as a port adapter in ISO 1179-1 / DIN 3852 ports. This is accomplished with the addition of a bonded seal (“Dowty®” seal).

K4 Adapter Selection

HMK4 Union	WMK4WL4NM Bulkhead Union	F6MK4 60° Swivel / 60° Cone
H6MK4 Swivel Union	FMK4 NPTF / 60° Cone	F3MK4 BSPT / 60° Cone
G4MK4 BSPP / 60° Cone	EMK4 Union Elbow	C6MK4 60° Swivel / 60° Cone
E6MK4 Swivel Union	JMK4 Union Tee	S6MK4 60° Swivel Branch Tee
R6MK4 60° Swivel Run Tee	J6MK4 Swivel Union Tee	PNMK4 Hex Head Plug
FNMK4 Cap

Design & Construction

The metal-to-metal sealing is achieved by a single line of contact between the conical surface of the 60° cone seat and the corresponding surface of the ballnose or cone swivel.

K4 adapters are manufactured in accordance with BS5200 standards. The 60° internal seat is designed for sealing with BSP hose swivel connections offered by many manufacturers.