Bicycle Pump Part
They are the industry-standard connectors used to join copper tubing in Air Conditioning, Refrigeration, and Heat Pump systems.
| Type | Seal | Pressure Rating | Tolerance | Thread | Hose ID | Material |
|---|---|---|---|---|---|---|
| Presta -> Schrader | Rubber O-Ring | - | - | - | - | Brass, Steel |
| Schrader -> Presta | Internal Washer | - | - | - | - | Brass, Steel |
| Needle Adapter | Integrated Thread | - | - | - | - | Brass, Steel |
| Base Valve Body | - | Max 200 PSI | H7 Fit | - | - | Brass, Steel |
| Piston Head | - | Dynamic Seal | ±0.05mm | - | - | Brass, Steel |
| Base Nipple | - | - | - | M8 / 1/8" NPT | 5mm / 6mm | Brass, Steel |
| Chuck Connector | - | - | - | M5/M6 | 4mm/5mm | Brass, Steel |
| Compression Nut | - | - | - | Knurled Cap | Universal | Brass, Steel |
Valve Adapters & Converters: Precision turned adapters to convert between Presta, Schrader, and Dunlop valve types. Essential for track pumps and hand pumps. Knurled surface ensures grip even with oily hands.
Non-Return Valves (NRV): The internal heart of any floor pump. This brass plunger mechanism holds back pressures up to 160 PSI (11 Bar) without leaking. Machined to tight tolerances to ensure the ball bearing or rubber seal seats perfectly every time.
Hose Fittings & Nipples: Connectors that join the rubber pump hose to the pump base and the chuck. Features deep barbs for secure retention under pressure and fine threads for airtight assembly.