OUR VERDICT
ISO-B is the most common industrial hydraulic quick-connect. Buy it to replace a worn ISO-B half or to build a new line that disconnects clean with no drip and no air in the circuit. Match the body size and thread to the mating half on your equipment.
WHAT WE LIKE
- ISO 7241-1 Series B interchange, mates with any brand ISO-B half of the same size
- Two-way shut-off: both halves seal at disconnect
- Ball-lock sleeve for shock and vibration
WORTH NOTING
- Connect and disconnect at zero pressure only
- Only couples with same-size ISO-B halves
Specifications
| Series | ISO-B (FHK / DS interchange) |
|---|---|
| Temperature range | -40°F to 250°F |
| Max working pressure | 3700 PSI |
| Interchange | ISO 7241-B |
| Component | Coupler (socket) |
| Body size | 3/8" |
| Body material | 303/304 Stainless |
| Seal material | Buna-N (NBR) |
| Socket action | Manual sleeve |
| Valving | Valved both ends |
ISO 7241-B — the ISO-B industrial pattern (FHK family). Not interchangeable with ISO-A.Full interchange lookup →
Complete the connection
This is a coupler (socket) in the ISO 7241-B profile. It only mates with ISO 7241-B plugs (nipples) — any brand.