Hansen 2RL Series
Danfoss Hansen 2RL ring-lock pneumatic quick disconnect couplings combine high flow capacity with push-to-connect operation and a rotating safety sleeve for compressed-air systems.
Compact 1/4-inch ring-lock coupling
The Hansen 2RL Series uses a proprietary Danfoss interchange for compressed air. Its ring-lock sleeve helps prevent accidental disconnection while retaining simple push-to-connect operation.
To disconnect, rotate the sleeve approximately 20 degrees before retracting it. The 2RL is suited to shipyards, general pneumatics, mining and marine applications.

Product features
- High-flow 1/4-inch coupling platform.
- Push-to-connect operation with ring-lock sleeve.
- Ring-lock design helps prevent accidental disconnection.
- Rotate the sleeve approximately 20 degrees to disconnect.
- Standard body material: zinc trivalent plated steel.
- Standard seal: Buna-N; every socket is also available with FKM (143) or EPDM (192).
2RL Series operating data
| Series | Coupling Size | Max. Pressure (bar) | Max. Pressure (psi) | Min. Burst (bar) | Min. Burst (psi) | Rated Flow (lpm) | Rated Flow (scfm) |
|---|---|---|---|---|---|---|---|
| 2RL | 1/4 | 20 | 300 | 80 | 1,200 | 1,350 | 48 |
Typical uses
- Shipyards
- General pneumatics
- Mining
- Marine
Connection style
- Push plug into socket to connect.
- Rotate sleeve about 20 degrees, then retract to disconnect.
- Ring lock reduces accidental release.
2RL Series connection tables

Socket male end connections
Seal and valve choices combine when compatible. LLV identifies the stainless steel valve option.
| Part Number | Coupling Type | Body Size | Port Size | Thread Type | Fig. | Length (in) | Diameter (in) | Hex (in) | Length (mm) | Diameter (mm) | Hex (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2R10 | Socket/Female | 1/4 | 1/8 | 1/8-27 NPTF | 1 | 2.01 | 1.06 | 0.88 | 51.1 | 26.9 | 22.4 |
| 2R15 | Socket/Female | 1/4 | 1/4 | 1/4-18 NPTF | 1 | 2.16 | 1.06 | 0.88 | 54.9 | 26.9 | 22.4 |
| 2R20 | Socket/Female | 1/4 | 3/8 | 3/8-18 NPTF | 1 | 2.16 | 1.06 | 0.88 | 54.9 | 26.9 | 22.4 |
| 2R25 | Socket/Female | 1/4 | 1/2 | 1/2-14 NPTF | 1 | 2.35 | 1.06 | 0.88 | 59.7 | 26.9 | 22.4 |

Socket female end connections
The selected seal suffix is applied to each socket part number.
| Part Number | Coupling Type | Body Size | Port Size | Thread Type | Fig. | Length (in) | Diameter (in) | Hex (in) | Length (mm) | Diameter (mm) | Hex (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2R11 | Socket/Female | 1/4 | 1/8 | 1/8-27 NPTF | 1 | 1.91 | 1.06 | 0.88 | 48.5 | 26.9 | 22.4 |
| 2R16 | Socket/Female | 1/4 | 1/4 | 1/4-18 NPTF | 1 | 1.91 | 1.06 | 0.88 | 48.5 | 26.9 | 22.4 |
| 2R21 | Socket/Female | 1/4 | 3/8 | 3/8-18 NPTF | 1 | 2.16 | 1.06 | 0.88 | 54.9 | 26.9 | 22.4 |
| 2R26 | Socket/Female | 1/4 | 1/2 | 1/2-14 NPTF | 1 | 2.43 | 1.06 | 1.00 | 61.7 | 26.9 | 25.4 |

Plug male end connections
| Part Number | Coupling Type | Body Size | Port Size | Thread Type | Fig. | Length (in) | Diameter (in) | Hex (in) | Length (mm) | Diameter (mm) | Hex (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2L10 | Plug/Male | 1/4 | 1/8 | 1/8-27 NPTF | 2 | 1.51 | 0.58 | 0.50 | 38.4 | 14.7 | 12.7 |
| 2L15 | Plug/Male | 1/4 | 1/4 | 1/4-18 NPTF | 2 | 1.66 | 0.65 | 0.56 | 42.2 | 16.5 | 14.2 |
| 2L20 | Plug/Male | 1/4 | 3/8 | 3/8-18 NPTF | 2 | 2.04 | 0.79 | 0.69 | 51.8 | 20.1 | 17.5 |
| 2L20G† | Plug/Male | 1/4 | 3/8 | 3/8-18 NPTF | 2 | 2.64 | 0.77 | 0.69 | 67.1 | 19.6 | 17.5 |
| 2L25 | Plug/Male | 1/4 | 1/2 | 1/2-14 NPTF | 2 | 2.31 | 1.01 | 0.88 | 58.7 | 25.7 | 22.4 |
† Bleeder ball check option reduces hose whip.

Plug female end connections
| Part Number | Coupling Type | Body Size | Port Size | Thread Type | Fig. | Length (in) | Diameter (in) | Hex (in) | Length (mm) | Diameter (mm) | Hex (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2L11 | Plug/Male | 1/4 | 1/8 | 1/8-27 NPTF | 2 | 1.36 | 0.65 | 0.56 | 34.5 | 16.5 | 14.2 |
| 2L16 | Plug/Male | 1/4 | 1/4 | 1/4-18 NPTF | 2 | 1.54 | 0.79 | 0.69 | 39.1 | 20.1 | 17.5 |
| 2L21 | Plug/Male | 1/4 | 3/8 | 3/8-18 NPTF | 2 | 1.88 | 0.94 | 0.81 | 47.8 | 23.9 | 20.6 |
| 2L26 | Plug/Male | 1/4 | 1/2 | 1/2-14 NPTF | 2 | 2.18 | 1.15 | 1.00 | 55.4 | 29.2 | 25.4 |
† Bleeder ball check option reduces hose whip.

Socket hose stem connections
Seal and valve choices combine when compatible. LLV identifies the stainless steel valve option.

Plug hose stem connections

Socket hose clamp connections
The selected seal suffix is applied to each socket part number.
| Part Number | Coupling Type | Body Size | Hose I.D. | Hose O.D. | Fig. | Length (in) | Diameter (in) | Hex (in) | Length (mm) | Diameter (mm) | Hex (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2R18B3 | Socket/Female | 1/4 | 1/4 | 1/2 | 1 | 2.73 | 1.06 | 0.63 | 69.3 | 26.9 | 16.00 |
| 2R18B7 | Socket/Female | 1/4 | 1/4 | 5/8 | 1 | 2.73 | 1.06 | 0.75 | 69.3 | 26.9 | 19.05 |
| 2R18B11 | Socket/Female | 1/4 | 1/4 | 3/4 | 1 | 2.73 | 1.06 | 0.88 | 69.3 | 26.9 | 22.35 |
| 2R185C7 | Socket/Female | 1/4 | 5/16 | 5/8 | 1 | 2.79 | 1.06 | 0.75 | 70.9 | 26.9 | 19.05 |
| 2R185C9 | Socket/Female | 1/4 | 5/16 | 11/16 | 1 | 2.79 | 1.06 | 0.81 | 70.9 | 26.9 | 20.57 |
| 2R23D7 | Socket/Female | 1/4 | 3/8 | 5/8 | 1 | 2.85 | 1.06 | 0.75 | 72.4 | 26.9 | 19.05 |
| 2R23D9 | Socket/Female | 1/4 | 3/8 | 11/16 | 1 | 2.85 | 1.06 | 0.81 | 72.4 | 26.9 | 20.57 |
| 2R23D11 | Socket/Female | 1/4 | 3/8 | 3/4 | 1 | 2.85 | 1.06 | 0.88 | 72.4 | 26.9 | 22.35 |
| 2R28P13 | Socket/Female | 1/4 | 1/2 | 13/16 | 1 | 3.48 | 1.06 | 0.94 | 88.4 | 26.9 | 23.88 |
| 2R28P15 | Socket/Female | 1/4 | 1/2 | 7/8 | 1 | 3.48 | 1.06 | 1.00 | 88.4 | 26.9 | 25.40 |

Plug hose clamp connections
| Part Number | Coupling Type | Body Size | Hose I.D. | Hose O.D. | Fig. | Length (in) | Diameter (in) | Hex (in) | Length (mm) | Diameter (mm) | Hex (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2L18B3 | Plug/Male | 1/4 | 1/4 | 1/2 | 2 | 2.23 | 0.70 | 0.63 | 56.6 | 17.8 | 16.00 |
| 2L185C7 | Plug/Male | 1/4 | 5/16 | 5/8 | 2 | 2.29 | 0.84 | 0.75 | 58.2 | 21.3 | 19.05 |
| 2L185C9 | Plug/Male | 1/4 | 5/16 | 11/16 | 2 | 2.29 | 0.91 | 0.81 | 58.2 | 23.1 | 20.57 |
| 2L23D5 | Plug/Male | 1/4 | 3/8 | 9/16 | 2 | 2.35 | 0.77 | 0.69 | 59.7 | 19.6 | 17.53 |
| 2L23D7 | Plug/Male | 1/4 | 3/8 | 5/8 | 2 | 2.35 | 0.84 | 0.75 | 59.7 | 21.3 | 19.05 |
| 2L23D9 | Plug/Male | 1/4 | 3/8 | 11/16 | 2 | 2.35 | 0.91 | 0.81 | 59.7 | 23.1 | 20.57 |
| 2L23D11 | Plug/Male | 1/4 | 3/8 | 3/4 | 2 | 2.35 | 0.98 | 0.88 | 59.7 | 24.9 | 22.35 |
| 2L28P13 | Plug/Male | 1/4 | 1/2 | 13/16 | 2 | 3.41 | 1.05 | 0.94 | 86.6 | 26.7 | 23.88 |
| 2L28P15 | Plug/Male | 1/4 | 1/2 | 7/8 | 2 | 3.41 | 1.12 | 1.00 | 86.6 | 28.4 | 25.40 |
Need help matching a Hansen 2RL coupling?
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