High head pumps can not be used at low heads

High pressure pump as part of the rear osmosis system, acting as a pumping part, if the water doesn't come, the entire rear osmosis system won't be suitable to filter the water, so the part of high pressure pump shouldn't be undervalued. moment I'll talk about how to do when the high- pressure pump can't pump water?

In the case of ministry and outfit, the whole operation depends on a number of details to complete together, if one of the small fast content of the problem, also, it's possible to stop the operation. In the case of the fire pump, the fire pump will also stop operating when the liquid isn't enough. So, what's the principle of it? I will talk to you about the reasons.

I. Pump body

Daily examination, refill, replace slicking oil painting, oil painting abrasion, rust should be replaced in its wholeness.

Leakage check good quilting, no water seepage into the pump body, water overflow, trachoma, pump shaft seepage inflow into the ground.

Flexible gyration, no jamming, pump shaft and motor shaft on the same centerline, tight seats, rustproof screws( withanti-corrosion measures), complete gaskets.

Test sequestration resistance of windings with 500VMΩ table( R ≥0.5 MΩ) test motor and ground resistance( R ≥ 10Ω) per time.

Neat appearance, good makeup, clear identification, clear handwriting on nameplate.

Proper conservation of diesel fire pumps, especially preventative conservation, is the simplest and most provident conservation and thus the key to extending service life and reducing operating costs. The diurnal conservation can be performed according to the following way.

The jockey pump is a kind of fire pump. It's used to stabilize the pressure of the automatic sprinkler system and the fire line water force system, so that the system water pressure is always in the needed pressure state. Once the sprinkler or fire line comes out of water, it can flow out to meet the requirements of fire fighting water volume and water pressure.
The jockey pump and the supporter pump are both types of constant pressure installations for fire pumps. The supporter pump works when the sprinkler head and fire line haven't flowed out, and the supporter pump works when the sprinkler head and fire line have discharged water, but the water pressure of the fire fighting water is inadequate, and the water pressure needs to be increased. Different from the supporter pump, the pressure stabilizer pump is used to keep the tone- scattering system and the fire line system under the needed pressure conditions. Its function is veritably egregious, so the supporter pump appertained to in the specification basically refers to the stabilizer pump, especially the stabilizer pump of the automatic sprinkler system.
When the pressure of the fire pipe network( spray, fire line) is advanced than the set( design value), the supporter pump will automatically stop running. When the pressure of the fire pipe network( sprinkler, fire line) is lower than the set( design value), the supporter pump will start automatically.