Fittings & Adapters - Thorburn Flex Inc

Conversion Adapters
BRIDGING THE CONTINENTS
Thorburn introduces conversion adapter fittings
linking North America with the European and Japanese
thread configurations. There are five coupling systems
generally used for hydraulic connections. They are identified
geographically or by country as: North American
(see page 4), British, French,German, and Japanese.
HOW TO ORDER THORBURN COMMERCIAL GRADE
CONVERSION ADAPTERS
Example:1304FC SS 24 04x10
1304 FC 04x10 S6 A
1304FC S6 04x10 is a 316 stainless steel male SAE 37° to
Male Light Type 24° with 1 /2” tube with 5 /8” male pipe threads.
HOW TO ORDER THORBURN ASME CODE GRADE
CONVERSION ADAPTERS
Example: 1400FC 04x02 S6 Class 1
N
04x02 S6 Class 1
1400FC
Style N 1400FC 04x02 S6 is a 316 stainless steel male BSPP
to Male Pipe with 1 /4” tube with 1 /8” male pipe threads for ASME
class 1 service.
Foreign Thread Types
British Thread Types
Popular British couplings have British Standard Pipe (BSP) threads, also known as Whitworth threads. These can be parallel (BSPP) or
tapered (BSPT), with a 30° inverted flare. Flanges are equivalent to SAE code 61 or Code 62 (except -10, a non-SAE size flange). Port
connections are normally made with BSPP threads and a soft metal cutting ring for sealing.
(British Standard Pipe Parallel) The BSPP male mates with a
BSPP female or a female port. The BSPP male has straight threads and a
30° chamfered seat. The BSPP female has straight threads and a 30°
seat.The female port has straight threads.The seal on the port is made with
an O-ring or a soft metal washer on the male. The female swivel has a
tapered nose flareless swivel which seals on the cone seat of the male.
The BSPP connector is similar to, but not interchangeable with the
NPSM connector. The thread pitch differs in most sizes and the thread
angle is 55° instead of the 60° angle on NPSM threads (see North
American Thread Types, page 4).
BSPP (British Standard Pipe Parallel)
BSP THREAD NOMENCLATURE
(British Standard Pipe/Tapered) The BSPT
male mates with a BSPT female or BSPP female. The
BSPT male has tapered threads. When mating with
with the BSPT female or with the BSPP female port,
the seal is accomplished through thread distortion. The
BSPT connector is similar to, but not interchangeable
with the NPTF connector. The thread pitch differs in
most sizes and the thread angle is 55° instead of the
60° angle on NPTF threads (see North American
Thread Types, page 4).
BSPT (British Standard
Pipe / Tapered)
Male Female
Parallel Parallel
Dash Nominal Thread Thread Thread
Size Size (in.) Size OD (in.) ID (in.)
-2
-4
-6
-8
-10
-12
-16
-20 1 1
-24 1 1
-32
28