High-pressure relay fire pumps are portable firefighting water supply equipment designed specifically for mountainous steep slopes and roadless forest areas, achieving high head water delivery through multi-stage series connection. Suitable working conditions: large altitude differences, water sources at low positions, fire scenes on steep slopes or ridges; requiring rapid hose deployment and multi-pump relay; forest patrol and emergency material reserves. Unsuitable working conditions: large-area flatland fire scenes requiring ultra-long-distance water delivery (high-head water source pumps or large pump units should be selected); water sources with extremely high sand content and no filtration; extreme low temperatures below zero without antifreeze measures; remote stations lacking basic maintenance conditions.
| Parameter Item | Typical Range |
| Head (single stage) | 80–150 m |
| Flow rate | 3–8 L/s |
| Relay stages | 2–5 stages |
| Total weight | 12–25 kg (portable) |
| Starting method | Manual pull/electric start |
| Outlet diameter | 25–40 mm |
| Continuous working time | ≥8 h (depending on working conditions) |
Configuration must match hose pressure rating, quick coupling compatibility, and spare pump units. Lithium battery firefighting fans can be used in combination, such as the LSA-LDFJ84 lithium battery fan for cleaning up residual fire and creating firebreaks.
A forest farm experienced a fire on a steep slope at an altitude of 1,200 meters, with the water source at the foot of the mountain. A three-stage relay high-pressure pump was used, with a single-stage head of approximately 120 meters and a flow rate of 5 L/s. Hoses were laid to the fire scene in 30 minutes, and with the assistance of a lithium battery fan to clean up residual fire, the fire was brought under control within 2 hours. During emergency reserve procurement, a certain unit required the supplier to provide series connection test videos and warranty commitments, and acceptance was passed on the first attempt.
When selecting a forest firefighting high-pressure relay pump, the core is to match local terrain and water source conditions, balance head, flow rate, and portability, and emphasize acceptance compliance. It is recommended to prioritize manufacturers with test reports and nearby after-sales service. Longsheng'an Firefighting provides high-pressure relay pumps, lithium battery fans, and other full-series equipment and bidding support. Consultation phone: 13060031111.