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RKF HL / RKF HS
Pipe coupling (fixed)
Product image
Properties
| Application |
Automotive engineering |
| Connection 1 |
metric cylindrical outer thread |
| Sealing form 1 |
24° inner cone |
| Residual pressure: |
Coupling under residual pressure is possible |
| Material |
Steel |
| Surface |
electro galvanised |
Description
Pipe couplings are designed for high pressures and pressure pulses.
Item
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 Identification |
DN* | Series | for external pipe Ø (mm) |
Connecting thread | Size | Coupling thread | Operating pressure (bar) |
SF coup.* | Mineral oil temp. min. (°C) |
Mineral oil temp. max. (°C) |
|---|---|---|---|---|---|---|---|---|---|---|
| RKF 06 HL 1 | 6 | L | 8 | M 14x1,5 | 1 | Rd. 32 x 3 | 315,0 | 4,0 | -25 | 85 |
| RKF 08 HL 1 | 8 | L | 10 | M 16x1,5 | 1 | Rd. 32 x 3 | 315,0 | 4,0 | -25 | 85 |
| RKF 10 HL 1 | 10 | L | 12 | M 18x1,5 | 1 | Rd. 32 x 3 | 315,0 | 4,0 | -25 | 85 |
| RKF 13 HL 1 | 12 | L | 15 | M 22x1,5 | 1 | Rd. 32 x 3 | 315,0 | 4,0 | -25 | 85 |
| RKF 13 HL 2 | 12 | L | 15 | M 22x1,5 | 2 | Rd. 36x3 | 300,0 | 4,0 | -25 | 85 |
| RKF 13 HL 3 | 12 | L | 15 | M 22x1,5 | 3 | Rd. 48 x 3 | 300,0 | 3,5 | -25 | 100 |
| RKF 16 HL 2 | 16 | L | 18 | M 26x1,5 | 2 | Rd. 36x3 | 300,0 | 4,0 | -25 | 100 |
| RKF 16 HL 3 | 16 | L | 18 | M 26x1,5 | 3 | Rd. 48 x 3 | 300,0 | 3,5 | -25 | 100 |
| RKF 16 HL 4 | 16 | L | 18 | M 26x1,5 | 4 | Rd. 54 x 4 | 300,0 | 3,5 | -25 | 85 |
| RKF 20 HL 4 | 19 | L | 22 | M 30x2 | 4 | Rd. 54 x 4 | 160,0 | 4,0 | -25 | 85 |
| RKF 20 HL 5 | 19 | L | 22 | M 30x2 | 5 | Rd. 60 x 3 | 160,0 | 4,0 | -40 | 100 |
| RKF 25 HL 4 | 25 | L | 28 | M 36x2 | 4 | Rd. 54 x 4 | 160,0 | 4,0 | -25 | 85 |
| RKF 25 HL 5 | 25 | L | 28 | M 36x2 | 5 | Rd. 60 x 3 | 160,0 | 4,0 | -40 | 100 |
| RKF 32 HL 6 | 31 | L | 35 | M 45x2 | 6 | Rd. 79 x 4 | 160,0 | 4,0 | -25 | 85 |
| RKF 06 HS 1 | 6 | S | 10 | M 18x1,5 | 1 | Rd. 32 x 3 | 400,0 | 4,0 | -25 | 85 |
| RKF 08 HS 1 | 8 | S | 12 | M 20x1,5 | 1 | Rd. 32 x 3 | 400,0 | 4,0 | -25 | 85 |
| RKF 10 HS 1 | 10 | S | 14 | M 22x1,5 | 1 | Rd. 32 x 3 | 400,0 | 4,0 | -25 | 85 |
| RKF 13 HS 2 | 12 | S | 16 | M 24x1,5 | 2 | Rd. 36x3 | 300,0 | 4,0 | -25 | 85 |
| RKF 13 HS 3 | 12 | S | 16 | M 24x1,5 | 3 | Rd. 48 x 3 | 300,0 | 3,5 | -25 | 100 |
| RKF 16 HS 3 | 16 | S | 20 | M 30x2 | 3 | Rd. 48 x 3 | 300,0 | 3,5 | -25 | 100 |
| RKF 16 HS 4 | 16 | S | 20 | M 30x2 | 4 | Rd. 54 x 4 | 300,0 | 3,5 | -25 | 85 |
| RKF 20 HS 4 | 19 | S | 25 | M 36x2 | 4 | Rd. 54 x 4 | 300,0 | 3,5 | -25 | 85 |
| RKF 20 HS 5 | 19 | S | 25 | M 36x2 | 5 | Rd. 60 x 3 | 160,0 | 4,0 | -40 | 100 |
| RKF 25 HS 4 | 25 | S | 30 | M 42x2 | 4 | Rd. 54 x 4 | 300,0 | 3,5 | -25 | 85 |
| RKF 25 HS 5 | 25 | S | 30 | M 42x2 | 5 | Rd. 60 x 3 | 160,0 | 4,0 | -40 | 100 |
| RKF 32 HS 6 | 31 | S | 38 | M 52x2 | 6 | Rd. 79 x 4 | 420,0 | 2,5 | -25 | 85 |
DN = Nominal diameter, nominal width – SF gek. = Safety factor coupled
Additional information
Flat seal tappets ensure minimal oil leakages and air admittance when coupling.
The robust construction makes them ideal for use in harsh conditions with major pressure fluctuations.
Ordering information
Other pressure and temperature figures available on request.
Accessories
Spare parts
- RKF STUETZRING
- Support ring for pipe coupling
- RKF ORING
- O-ring
Disclaimer
Despite careful checking, we cannot guarantee the accuracy of all information included on this site, and we accept no liability.
All data and information in our online catalogue are based on currently valid standards and the regulations from the employer's liability insurance association. Product safety can only be guaranteed when our assembly instructions are carefully observed. Non-adherence to these regulations can affect product operation and functioning and result in a loss of warranty. Our warranty is only valid for HANSA-FLEX products. Our products are constantly subject to further development and technical changes are therefore possible.