I3
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
4300
Catalog
K4 BSP Adapters
Dimensions and pressures for reference only, subject to change.
K4 BSP Adapters
Parker K4 (BSP) adapters are typically used as hose adapt-
ers 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 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, as
shown in Fig. I1.
K4 adapters are manufactured in accordance with BS5200
standards. The 60° internal seat is designed for sealing with
BSPhoseswivel connectionsofferedbymanymanufacturers.K4
adapters mate with Parker hose fitting series shown in Table I1.
Further enhancing the flexibility of the K4 adapter product line
is the ability for the male BSP cone end of the straight fittings
to also be used as a port adapter in ISO 1179-1 / DIN 3852
ports. This is accomplished with the addition of a bonded seal
(
often referred to as a “Dowty
®
”
seal). This product feature is
illustrated in Fig. I2.
Design and Construction
Construction:
Shaped K4 adapters are manufactured from a
hot forged construction. Straight adapters are manufactured
from cold drawn barstock.
Threads:
The standard K4 products are manufactured with the
thread forms listed below:
BSPP Threads: ISO 228-1 G
BSPT Threads: ISO 7/1, JIS B 0203
NPTF Threads: SAE J476, ANSI B1.20.3, FED-STD-H28/8
Reference Locations
Dynamic Pressure Ratings:
Please refer to the last column
of the part number tables located on the following pages of this
section for appropriate dynamic pressure ratings.
Standard Material Specification:
Please refer t
o Table U2
in
the Appendix Section.
Fig. I1 – K4 Interface
Table I1 – Parker K4 Fittings Hose
Adaptability
Fig. I2 – K4 End Used as a BSPP Port Adapter (in ISO 1179/ DIN
3852,
Part 2 Port)
Adapter
Connection End
Mating Parker Hose
Fitting Series
K4 / K46
D9/92, B1, B2, B4
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