Hansen Full-Bore Series
Danfoss Hansen Full-Bore Series pneumatic quick disconnect couplings are high-flow, pressure-relieving air couplings built to vent downstream pressure, reduce hose whip, and support demanding industrial compressed-air service.
High-flow pneumatic quick disconnects for plant air and industrial service
The Hansen Full-Bore Series is a premium one-way shutoff pneumatic quick disconnect coupling designed for compressed air lines where high flow, safer disconnect, and dependable industrial performance matter. The pressure-relieving design vents downstream air before release to help reduce hose whip and make disconnecting easier under working conditions.
The straight-through internal flow path removes restrictive springs and poppet valves so these couplings can deliver strong air flow to tools, maintenance drops, temporary air headers, and larger plant air connections. This makes the Full-Bore Series a strong fit for buyers searching for a high-flow air coupling or a pressure-relieving pneumatic disconnect.
Product features
- Pressure-relieving design vents downstream air before disconnect to help reduce hose whip.
- Straight-through construction supports high-flow compressed air service with minimal restriction.
- Two-sleeve activation sequence helps prevent accidental uncoupling in plant and shop use.
- Standard body material: zinc trivalent plated carbon steel.
- Standard seal material: Buna-N.
Full-Bore Series operating data
| Body Size | Max. Operating Pressure | Max. Operating Pressure | Min. Burst Pressure | Min. Burst Pressure | Rated Flow | Rated Flow |
|---|---|---|---|---|---|---|
| (in) | (bar) | (psi) | (bar) | (psi) | (lpm) | (scfm) |
| 3/8 | 15 | 250 | 60 | 1,000 | 1,784 | 63 |
| 1/2 | 15 | 250 | 60 | 1,000 | 2,860 | 101 |
Where the Full-Bore Series is used
- Construction
- Maintenance and repair
- In-plant/industrial
- Railyards
- Large compressed-air drops and general pneumatics
Full-Bore Series flow performance
Click the flow data image to open it larger in a new window.
Connection style
- Two sleeves are actuated in sequence to bleed off downstream pressure and release the coupling.
- The pressure-relieving action helps reduce hose whip before disconnecting the line.
Straight-through performance
- The straight-through design allows high air flow through the coupling body.
- Restrictive springs and poppet valves are removed from the internal flow path.
Material details
- Socket body: zinc trivalent plated carbon steel.
- Seal material: Buna-N.
- Plugs use the matching Full-Bore interchange profile for these socket bodies.
Popular Full-Bore socket configurations
- 23204005: 1/2 body size Full-Bore socket with 3/4 female NPT connection for high-flow compressed air lines.
- 23204400: 1/2 body size Full-Bore socket with 1/2 female NPT connection for plant air and maintenance service.
- 23203024: 3/8 body size hose stem socket for portable air tools and air hose assemblies.
- 23204026: 1/2 body size hose stem socket for larger hose connections where more flow is needed.
What buyers usually ask
- What is a Full-Bore coupling? It is a high-flow pneumatic quick disconnect built to move more air with less restriction.
- Why use a pressure-relieving coupling? It vents downstream pressure before disconnect, helping reduce hose whip.
- Where are these used? They are common in industrial plants, maintenance departments, construction sites, and rail or heavy-equipment service.
- What plugs fit Full-Bore sockets? Full-Bore sockets use the matching Full-Bore interchange profile shown in the plug tables on this page.
Where buyers use Full-Bore couplings
- Large shop-air drops feeding grinders, impact tools, and air motors.
- Plant maintenance departments that need high air flow and safer disconnects.
- Temporary air headers and service lines in industrial facilities.
- Construction and rail-yard pneumatic service where hose whip control matters.
Matching sockets and plugs
The socket and plug tables on this page are grouped by connection style so buyers can match threaded and hose-end configurations more quickly. Full-Bore sockets mate with the matching Full-Bore plug profile, and the most common buying path is selecting the correct socket body first, then choosing the mating plug connection needed for the air line or tool.
For buyers comparing common sizes, the 3/8 body family supports compact high-flow air service while the 1/2 body family supports larger plant air lines where more volume is needed.
Full-Bore Series connection tables
Male End Connections
| Part Number | Coupling Type | Body Size | Port Size | Thread Type | Fig. | A (in) | B (in) | Hex (in) | A (mm) | B (mm) | Hex (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 23203013 | Socket/Female | 3/8 | 3/8 | 3/8-18 NPTF | 1 | 3.80 | 1.25 | 1.00 | 96.5 | 31.8 | 25.4 |
| 23203014 | Socket/Female | 3/8 | 1/2 | 1/2-14 NPTF | 1 | 4.10 | 1.25 | 1.00 | 71.1 | 31.8 | 25.4 |
| 23204014 | Socket/Female | 1/2 | 1/2 | 1/2-14 NPTF | 1 | 4.43 | 1.38 | 1.13 | 112.5 | 35.1 | 28.7 |
| 23204015 | Socket/Female | 1/2 | 3/4 | 3/4-14 NPTF | 1 | 4.67 | 1.38 | 1.13 | 118.6 | 35.1 | 28.7 |
Female End Connections
| Part Number | Coupling Type | Body Size | Port Size | Thread Type | Fig. | A (in) | B (in) | Hex (in) | A (mm) | B (mm) | Hex (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 23203300 | Socket/Female | 3/8 | 3/8 | 3/8-18 NPTF | 1 | 3.17 | 1.25 | 1.00 | 80.5 | 31.8 | 25.4 |
| 23203004 | Socket/Female | 3/8 | 1/2 | 1/2-14 NPTF | 1 | 3.92 | 1.25 | 1.00 | 99.6 | 31.8 | 25.4 |
| 23204400 | Socket/Female | 1/2 | 1/2 | 1/2-14 NPTF | 1 | 3.31 | 1.38 | 1.13 | 84.1 | 35.1 | 28.7 |
| 23204005 | Socket/Female | 1/2 | 3/4 | 3/4-14 NPTF | 1 | 4.30 | 1.38 | 1.13 | 109.2 | 35.1 | 28.7 |
Male End Connections
| Part Number | Coupling Type | Body Size | Port Size | Thread Type | Fig. | C (in) | D (in) | Hex (in) | C (mm) | D (mm) | Hex (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 | Plug/Male | 3/8 | 1/4 | 1/4-18 NPTF | 2 | 1.88 | 0.72 | 0.63 | 47.8 | 18.3 | 16.0 |
| 42 | Plug/Male | 3/8 | 3/8 | 3/8-18 NPTF | 2 | 1.88 | 0.79 | 0.69 | 47.8 | 20.1 | 17.5 |
| 44 | Plug/Male | 3/8 | 1/2 | 1/2-14 NPTF | 2 | 2.09 | 1.01 | 0.88 | 53.1 | 25.7 | 22.4 |
| 52 | Plug/Male | 1/2 | 3/8 | 3/8-18 NPTF | 2 | 2.25 | 0.87 | 0.75 | 57.2 | 22.1 | 19.1 |
| 54E | Plug/Male | 1/2 | 1/2 | 1/2-14 NPTF | 2 | 2.44 | 1.01 | 0.88 | 62.0 | 25.7 | 22.4 |
| 56 | Plug/Male | 1/2 | 3/4 | 3/4-14 NPTF | 2 | 2.50 | 1.23 | 1.06 | 63.5 | 31.2 | 26.9 |
Female End Connections
| Part Number | Coupling Type | Body Size | Port Size | Thread Type | Fig. | C (in) | D (in) | Hex (in) | C (mm) | D (mm) | Hex (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 41 | Plug/Male | 3/8 | 1/4 | 1/4-18 NPTF | 2 | 1.63 | 0.79 | 0.69 | 41.4 | 20.1 | 17.5 |
| 43 | Plug/Male | 3/8 | 3/8 | 3/8-18 NPTF | 2 | 1.81 | 0.94 | 0.81 | 46.0 | 23.9 | 20.6 |
| 45E | Plug/Male | 3/8 | 1/2 | 1/2-14 NPTF | 2 | 2.06 | 1.15 | 1.00 | 52.3 | 29.2 | 25.4 |
| 53 | Plug/Male | 1/2 | 3/8 | 3/8-18 NPTF | 2 | 2.06 | 0.94 | 0.81 | 52.3 | 23.9 | 20.6 |
| 55 | Plug/Male | 1/2 | 1/2 | 1/2-14 NPTF | 2 | 2.34 | 1.15 | 1.00 | 59.4 | 29.2 | 25.4 |
| 57 | Plug/Male | 1/2 | 3/4 | 3/4-14 NPTF | 2 | 2.44 | 1.37 | 1.19 | 62.0 | 34.8 | 30.2 |
Hose Stem End Connections
Need help matching a Hansen Full-Bore Series coupling?
We can help match the right Full-Bore socket or plug for your plant air, maintenance, or high-flow pneumatic application, including common socket part numbers and mating plug styles.