JACKING PUMP PM80

Description

The fire hose reel and jacking pumpsets are electrically driven with a flow range 0.5 l/s to 50 l/s – with larger units provided on request.

These units boost water pressure to fire hose reels or the system ring main as and when it is needed and perform the task of maintaining the system pressure against minor leaks.

They are built on a stainless steel base frame and are automatically controlled by either pressure switch or VSD.

The units include a suction check valve, a special two-way valve and a discharge isolating valve.

They are automated for starting and stopping, in contrast to the main pumps which, after an automatic start will continue working regardless of condition until they are manually stopped or run to destruction.

Safety features

The manual-stop-only on the main pumps is designed to ensure they continue working non-stop once they start.

It is important that readings such as oil pressure drops or perhaps a faulty water pressure sensor does not interfere in its function during a fire event.

The jacking pump will ensure the main pumps do not start up in response to minor leaks.

If the major pumps respond to the leaks by starting up, they will continue pumping until the point of destruction.

The jacking pump allows the system to avoid that scenario and is programmed to turn off automatically when the pressure is stabilised.