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A one-touch fitting that can be used to connect tubing through a panel.
[Features]
· Compact and lightweight with improved tube insertion/removal.
· The chuck grips the workpiece securely, increasing the tube holding force.
· Can be used for pressures from a low vacuum up to 1 MPa. The special profile ensures a reliable seal and minimizes resistance when inserting tubes.
[Applications]
· Can be used to connect tubing through a panel.
Part Number
Configured Part Number is shown.

Bulkhead Union KQ2E (Interchangeable with KQ) dimensional drawing

Release button dimensions
| Applicable tube outer diameter mm | Model | T (M) | H (width across flats) | Release Button Dimensions | L | Mounting hole | M | Effective area (mm2) | Minimum hole diameter | Weight g | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| X | Y | Nylon | Urethane | |||||||||
| ø3.2 | KQ2E23-00□1 | M12 × 1 | 14 | 6.7 | 9.5 | 27.3 | 13 | 13.3 | 3.4 | 2.9 | 2.5 | 24.1 |
| ø4 | KQ2E04-00□1 | M12 × 1 | 14 | 7.7 | 10 | 27.3 | 13 | 13.3 | 5.6 | 4 | 3 | 22.9 |
| ø6 | KQ2E06-00□1 | M14 × 1 | 17 | 9.7 | 12 | 27.3 | 15 | 13.3 | 13.1 | 10.4 | 4.5 | 28 |
□: A (Brass), N (Brass + electroless nickel plating.)
| Tube materials | FEP, PFA, nylon, soft nylon, polyurethane |
|---|---|
| Tube outer diameter | ø4, ø6 |
Applicable Tubing
| Usable fluids | Air, water Note 1: | |
|---|---|---|
| Operating pressure range Note 2: | -100 kPa to 1 MPa | |
| Guaranteed proof pressure (at 23°C) | 3 MPa | |
| Ambient temperature and fluid temperature | -5 to 60°C, For water: 0 to 40°C (no freezing) | |
| Thread | Mounting section | ISO 16030 (parallel pipe thread) |
| Nut section | JIS B0205 (metric fine thread) | |
| Thread part sealant | Seal ring | |
Specifications

Main part
| Body | C3604, PBT |
|---|---|
| Stud | C3604 (thread part) |
| Chuck | SUS304 |
| Guide | SUS304 |
| Release button | POM |
| Seal, O-ring, seal ring | NBR |
Material
Note 1: The surge pressure must be under the maximum operating pressure.
Note 2: Do not use the fittings with a leak tester or for vacuum retention because they are not guaranteed for zero leakage.
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Body Material | Union, Equal Dia. | Application | Applicable Tube O.D.1 (φ) | Applicable Tube Outer Diameter 2 (φ) | Types of connection | Number of Connection Tubes (piece) | Color | Release button shape | Release button color | Custom-made specifications |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MYR 27.51 | 10 Piece(s) | 13 Day(s) or more | [SUS303, SUS304] SUS303 | [Partition Unions] Bulkhead Union | Clean circumstance | - | - | - | - | - | - | - | - | ||
MYR 31.12 | 10 Piece(s) | 34 Day(s) or more | [SUS303, SUS304] SUS303 | [Partition Unions] Bulkhead Union | Clean circumstance | - | - | - | - | - | - | - | - | ||
MYR 26.20 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 1/8 | 1/8 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 31.07 | 10 Piece(s) | 10 Day(s) or more | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 1/8 | 1/8 | Tube Connection | 2 | White | Ellipse | Orange | N/A | ||
MYR 27.00 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 1/8 | 1/8 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 31.76 | 10 Piece(s) | 10 Day(s) or more | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 1/8 | 1/8 | Tube Connection | 2 | White | Ellipse | Orange | N/A | ||
MYR 24.80 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 5/32 | 5/32 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 39.28 | 10 Piece(s) | 21 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 5/32 | 5/32 | Tube Connection | 2 | White | Ellipse | Orange | N/A | ||
MYR 25.70 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 5/32 | 5/32 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 40.60 | 10 Piece(s) | 21 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 5/32 | 5/32 | Tube Connection | 2 | White | Ellipse | Orange | N/A | ||
MYR 18.00 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 4 | 4 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 18.00 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 4 | 4 | Tube Connection | 2 | White | Ellipse | Light Gray | N/A | ||
MYR 19.21 | 10 Piece(s) | 5 Day(s) or more | [SUS303, SUS304] SUS303, SUS304 | [Partition Unions] Bulkhead Union | Standard/Mini | - | - | - | - | - | - | - | - | ||
MYR 18.80 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 4 | 4 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 25.75 | 10 Piece(s) | 5 Day(s) or more | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 4 | 4 | Tube Connection | 2 | White | Ellipse | Light Gray | N/A | ||
MYR 33.64 | 5 Piece(s) | 5 Day(s) or more | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 3/16 | 3/16 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 45.03 | 10 Piece(s) | 21 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 3/16 | 3/16 | Tube Connection | 2 | White | Ellipse | Orange | N/A | ||
- | 10 Piece(s) | Quote | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 3/16 | 3/16 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 45.92 | 10 Piece(s) | 21 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 3/16 | 3/16 | Tube Connection | 2 | White | Ellipse | Orange | N/A | ||
MYR 19.20 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 6 | 6 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 19.20 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 6 | 6 | Tube Connection | 2 | White | Ellipse | Light Gray | N/A | ||
MYR 20.87 | 10 Piece(s) | 5 Day(s) or more | [SUS303, SUS304] SUS303, SUS304 | [Partition Unions] Bulkhead Union | Standard/Mini | - | - | - | - | - | - | - | - | ||
MYR 19.20 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 6 | 6 | Tube Connection | 2 | White | Perfect circle | White | Lubricant:white petroleum jelly, release push color changeリリースブッシュ色変更 | ||
MYR 20.50 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 6 | 6 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 20.60 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 6 | 6 | Tube Connection | 2 | White | Ellipse | Light Gray | N/A | ||
MYR 28.30 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 1/4 | 1/4 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 29.70 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 1/4 | 1/4 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 23.20 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 8 | 8 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 23.20 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 8 | 8 | Tube Connection | 2 | White | Perfect circle | White | Lubricant:white petroleum jelly, release push color changeリリースブッシュ色変更 | ||
MYR 24.60 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 8 | 8 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 31.10 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 5/16 | 5/16 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 32.50 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 5/16 | 5/16 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 30.50 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 10 | 10 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 32.80 | 5 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 10 | 10 | Tube Connection | 2 | White | Perfect circle | White | Lubricant:white petroleum jelly, release push color changeリリースブッシュ色変更 | ||
MYR 32.60 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 10 | 10 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
- | 10 Piece(s) | Quote | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 10 | 10 | Tube Connection | 2 | White | Perfect circle | White | Lubricant:white petroleum jelly, release push color changeリリースブッシュ色変更 | ||
MYR 40.60 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 3/8 | 3/8 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 42.80 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 3/8 | 3/8 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 35.10 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 12 | 12 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 35.80 | 5 Piece(s) | 5 Day(s) or more | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 12 | 12 | Tube Connection | 2 | White | Perfect circle | White | Lubricant:white petroleum jelly, release push color changeリリースブッシュ色変更 | ||
MYR 37.90 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 12 | 12 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 49.10 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 1/2 | 1/2 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 51.90 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 1/2 | 1/2 | Tube Connection | 2 | White | Perfect circle | Orange | N/A | ||
MYR 86.80 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 16 | 16 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 102.50 | 5 Piece(s) | 5 Day(s) or more | [SUS303, SUS304] SUS303, SUS304 | [Partition Unions] Bulkhead Union | Standard/Mini | 16 | - | - | - | - | - | - | - | ||
MYR 92.40 | 5 Piece(s) | 43 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 16 | 16 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 26.00 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Partition Unions] Bulkhead Union | Standard/Mini | 3.2 | 3.2 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
- | 1 Piece(s) | Quote | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 3.2 | 3.2 | Tube Connection | 2 | White | Perfect circle | Light Gray | N/A | ||
MYR 38.42 | 10 Piece(s) | 21 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Partition Unions] Bulkhead Union | Standard/Mini | 3.2 | 3.2 | Tube Connection | 2 | White | Ellipse | Light Gray | N/A |
Loading...
| Fitting Type | Union with same diameter | Applicable Fluid | Water / Air | Types | Single-Action |
|---|---|---|---|---|---|
| Packing, Material of O-Ring | NBR | Operating Temperature(°C) | -5::60 |
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