TAILONZ PNEUMATIC Copper Male Straight Push-to-Connect Fittings (4mm tube OD, 3/8 BSP) – Pack of 2 (PC4-03)
Product description
What this fitting is for
If you’re working with pneumatic lines, a straight push-to-connect fitting is one of those tools you don’t really think about until a connection needs to be made quickly and neatly. This TAILONZ PNEUMATIC Copper Male Straight fitting is designed for 4mm tube OD, with a male BSP thread connection (3/8 BSP).
On paper, it’s a practical mix of copper and plastic. The copper body helps the fitting feel more “industrial” and solid, while the push-to-connect part is there to simplify installation compared with more fiddly connector types. You get a pack of 2, which is handy when you’re rebuilding a small section or replacing more than one joint.
One caveat worth flagging: BSP thread sizes are nominal pipe sizes. That means the stated 3/8 BSP thread size isn’t a direct indication of the actual diameter you’ll measure—so it’s sensible to double-check your existing system’s thread specification before ordering.
Key takeaways
This is a straight pneumatic fitting for joining a 4mm tube OD to a 3/8 BSP male threaded port using push-in connection.
It’s intended for use with PU/PA/PE/ PVC tubes, and it’s rated with an operating range of 0–1 MPA and 0–60°C. For light to mid-range pneumatic setups within that range, it can be a straightforward way to keep connections tidy.
However, it’s not a universal “fit anything” connector. If your tubing material or tube size doesn’t match, or if your pressure/temperature sits outside the given working range, it may be a poor match.
Where it stands out in day-to-day use
The big selling point here is the push-in connect approach. In real terms, that usually means less time spent aligning parts and redoing joints—especially when you’re working in cramped spaces under benches or around plant/equipment.
A common micro-scenario: you’re replacing a short section of tubing on a pneumatic circuit. With a push-to-connect fitting, you can cut the tube to a clean end, insert it, and move on, rather than wrestling with threaded tube fittings and sealants each time.
Because the fitting is described as copper and plastic, you’re also less likely to treat it like a purely disposable part. It reads as a connector you’d keep in-service as part of a routine maintenance setup.
Tech specs (the bits you should verify)
- Name: TAILONZ PNEUMATIC Copper Male Straight 4mm Tube OD x 3/8 BSP Push to Connect Fittings (PC4-03)
- Type: Straight push-in connect fitting (male BSP threaded)
- Material: Copper and plastic
- Size: 4mm tube OD x 3/8 BSP thread
- Working range: 0–1 MPA and 0–60°C
- Applicable tube: PU / PA / PE / PVC
Pros and practical limitations
Pros
- Straight, male BSP push-to-connect design for quick tube-to-thread connection
- Copper and plastic construction (a more “substantial” feel than fully plastic fittings)
- Clear working range (0–1 MPA, 0–60°C) to help you judge suitability
- Compatible with several common tube materials listed (PU/PA/PE/PVC)
- Pack of 2 can reduce repeat buying when you have more than one joint
Where to be careful
- BSP thread sizes are nominal pipe sizes, not a direct diameter—so compatibility with your port should be checked carefully
- Tube OD matters: this is specified for 4mm tube OD, so don’t assume “close enough” if your tubing differs
- The stated working range may not suit every pneumatic environment—if you run hotter/stronger than that, it can be a miss
Who it suits (and who should skip it)
It makes sense if you’re building or maintaining a pneumatic setup that uses 4mm OD tubing and you have a 3/8 BSP male threaded connection point. You’ll likely get the most out of it when you want connections that are fast to make and fairly straightforward to replace.
You may want to skip it if: - Your tubing isn’t one of the materials listed (PU/PA/PE/PVC) - Your system pressure/temperature is outside the stated working range - You’re uncertain about how the BSP thread on your equipment matches the “3/8 BSP” nominal size
Installation checks before you buy
Before committing, it’s worth doing a quick sanity check: - Confirm your tube OD is actually 4mm as specified. - Confirm your port is a 3/8 BSP male threaded connection. - Ensure your operating conditions sit within 0–1 MPA and 0–60°C.
If any of those are unclear, it’s safer to pause and verify than to order and discover an avoidable mismatch.
Mini FAQ
Is this a straight push-to-connect fitting or a threaded fitting only?
It’s a straight push-to-connect design for connecting the 4mm tube to a 3/8 BSP male threaded port.
What tube materials does it suit?
It’s described as applicable to PU / PA / PE / PVC tubes.
What pressure and temperature range is it rated for?
The working range is stated as 0–1 MPA and 0–60°C.
Does 3/8 BSP mean a specific diameter?
Not directly. The input notes that BSP thread size is a nominal pipe size and doesn’t represent the actual diameter, so you should check compatibility with your specific connection.
Final verdict
This TAILONZ PNEUMATIC copper male straight push-to-connect fitting is a sensible buy if your pneumatic circuit uses 4mm tube OD and you need a 3/8 BSP male threaded connection, within the stated 0–1 MPA and 0–60°C range. It’s the kind of component that can save time during maintenance thanks to the push-in connection.
It might not be worth it if you’re outside those tube/material/working-range constraints, or if your BSP thread compatibility isn’t clear—BSP nominal sizes can be a gotcha when you’re matching parts.