Reduction - 3/4" BSP x 1.1/4" BSP female - WD seal

Thread reducer for adapting between two BSPP (Whitworth parallel) thread sizes in hydraulic and fluid power pipework. One side has a G 3/4 male thread and the other side has a G 1.1/4 female thread, enabling connection where thread sizes differ.

Sealing is provided by a WD profile sealing ring in NBR, supporting a reliable seal at the threaded interface. The steel body has a zinc-nickel plated surface treatment and is specified for pressures up to 400 bar, with an operating temperature range of -35 to +100 °C.

Typical Applications
  • Adapting BSPP threaded ports and lines where a reduction between G 3/4 and G 1.1/4 is required
  • Hydraulic manifolds, valves, pumps, and pipework assemblies using BSPP threads

Partnumber:
KN-12-20

Package size:
10 pcs

Min. order quantity is:
1 pcs
Angle
0 °

Brand Name
Stauff

Corrosion resistance
1200 hours salt spray DIN EN ISO 9227

D2
16 mm

Diameter pipe
16 mm

Hexagon
55 mm

L1
55 mm

L2
26,5 mm

Length
55 mm

Material
Steel

Model code
FI-RED-R3/4-WD-R1-1/4-B-W3

Pressure max.
400 bar

REACH compliant
Yes

RoHs compliant
Yes

S1
55 mm

Safety factor
4

Sealing material
NBR

Surface treatment
Zinc-Nickel plated

Temperature max.
+100 °C

Temperature min.
-35 °C

Thread T1
G 3/4 BSP

Thread T2
G 1.1/4 BSP

Thread inner
G 1.1/4 BSP

Thread outer
G 3/4 BSP

Total length
55 mm

Type
Long

i
16 mm
Package size
10 pcs

Barcode
399806

Gross weight
0,47 Kg

Net weight
0,47 Kg

Country of origin
DEU

Intrastat code
73071110

Thread reducer for adapting between two BSPP (Whitworth parallel) thread sizes in hydraulic and fluid power pipework. One side has a G 3/4 male thread and the other side has a G 1.1/4 female thread, enabling connection where thread sizes differ.

Sealing is provided by a WD profile sealing ring in NBR, supporting a reliable seal at the threaded interface. The steel body has a zinc-nickel plated surface treatment and is specified for pressures up to 400 bar, with an operating temperature range of -35 to +100 °C.

Typical Applications
  • Adapting BSPP threaded ports and lines where a reduction between G 3/4 and G 1.1/4 is required
  • Hydraulic manifolds, valves, pumps, and pipework assemblies using BSPP threads

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