Airtac BKC Bulkhead Lock Nut Union BKC0425-M3-S
AirTAC BKC0425-M3-S Locknut Straight Connector Specifications
- Model: BKC0425-M3-S
- Type: Locknut-style straight pneumatic connector
- Thread specification: M3×0.5 (external thread)
- Tube compatibility: Ø4mm OD × 2.5mm ID pneumatic tubing
- Material: Nickel-plated brass body
- Seal material: NBR (Nitrile) O-ring
- Max working pressure: 1.0 MPa (145 psi)
- Temperature range: -20℃ to 80℃ (-4°F to 176°F)
- Proof pressure: 1.5 MPa
- Weight: 8.2g ±0.3g
- Dimensions: 28mm(L) × 8mm(D) × 8mm(W)
- Surface treatment: Electroless nickel plating (5-8μm)
- Vibration resistance: 10-55Hz, 1.5mm amplitude
- Certification: RoHS compliant
High-density precision connector featuring a dual-locking mechanism with spring-loaded collet and threaded locknut for vibration-resistant tubing retention. The tapered seat design ensures bubble-tight sealing even under pressure fluctuations. Includes built-in flow optimization channels to minimize turbulence.
- Miniature pneumatic circuit connections in robotics
- Medical device gas delivery systems
- Semiconductor manufacturing equipment
- High-cycle automation tooling (e.g., pick-and-place units)
- Portable analytical instruments requiring compact plumbing
Installation protocol:
Insert tube until it bottoms out, then tighten locknut 1.25-1.75 turns using 8mm wrench.
Avoid overtightening - maximum torque 0.25N·m. Perform pressure test at 120% of system
operating pressure after installation.
| Property | Property Value |
|---|---|
| sku | BKC0425-M3-S |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.