Specify a faucet supply line by both end connections, thread or compression type, sealing arrangement and hose length. A nominal size label alone does not establish compatibility with the faucet and water-supply fitting.
By Quality Sanitary Ware · Published · Updated
Identify the faucet end and the supply end with their designation, gender, sealing surface and drawing reference. Add the required hose length and installation clearance. Keep the selected connection kit in the product parts list so it is supplied and checked with the faucet.
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BrassCraft's connector range includes combinations such as 3/8-inch compression and 1/2-inch FIP. These are named product examples, not a declaration that every faucet or destination uses those connections.
| Connection label | What it tells you | What is still needed |
|---|---|---|
| 3/8 in compression | A compression connection designation | Mating tube or fitting, seal and manufacturer drawing |
| 1/2 in FIP | A female pipe-connection label | Thread standard, mating end and sealing instructions |
| BSPP / G | Parallel pipe-thread family | Nominal size, seal face or washer arrangement and drawing |
| BSPT / ISO 7 family | Pipe-thread family with tapered-thread forms | Exact male/female designation and sealing requirements |
| NPT | Tapered pipe-thread family | Size, gender and specified sealing method |
Swagelok's thread identification guide distinguishes parallel and tapered threads and their profiles. NPT uses a 60-degree form; BSP-related forms use 55 degrees. Shared nominal sizes do not make the families interchangeable.
The nominal connector label, actual thread diameter and internal hose bore are separate fields. A unit converter can convert a measured length, but cannot turn one nominal pipe designation into another connection standard. State the complete connection specification with the measurement.
Follow the selected connector’s installation instructions for tightening and sealing. Match both end connections, the sealing method and hose length before ordering.
Illustrative specification only, not a claim that this hose is included with any QSW faucet: one 500 mm supply hose, End A = G 1/2 female swivel with the drawing-specified flat sealing washer; End B = G 3/8 female swivel with its drawing-specified flat washer. Both ends use parallel G threads and seal at the specified faces. The project record would identify a hose drawing revision, the mating fittings and the required pressure/temperature rating before approval.
| Field | Example entry |
|---|---|
| Hose length | 500 mm, measured by the drawing's defined endpoints |
| End A | G 1/2 female swivel; flat washer; matching male sealing face |
| End B | G 3/8 female swivel; flat washer; matching male sealing face |
| Seal method | Face/washer seal at each end; follow the assembly instructions |
| Comparison note | A 3/8-inch compression fitting is a different connection from G 3/8 |
Use this format to describe your actual faucet and shut-off valve. Have QSW quote that exact assembly after the mating interfaces are identified.
Include the faucet reference, connection at each end, hose length, approved material and markings, washers or adapters actually supplied, and individual-pack identification. Request the relevant pressure, temperature and water-contact documents for the offered assembly. Distinguish an approved included hose from a separately purchased accessory.
Ask the installer or project team to resolve the mating interfaces before order approval. If a connector needs force to begin engagement, stop and verify the drawing and thread identity rather than using the appearance of a partial fit as proof of compatibility.
No. Match the exact thread family, size and sealing arrangement specified for the assembly.
Send your chosen models, installation requirements, destination and quantities. QSW will organise the product specifications, applicable model documents, spare-part schedule and packing proposal with your manufacturing quotation.
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