Signal of fire pump pressure how set

Shandong Hairui Zhonglian Pump Industry Co. , ltd. The fire pump that is a major produces manufacturer. When type selecting of client fire pump, manufacturer of my company water pump can provide the before-sales service such as price of fire pump model, fire pump, in order to offer client reference, and manufacturer of my water pump can provide the service of product of custom-built pump industry for the client. This product information is about signal of fire pump pressure how the knowledge of set:

In the design that controls a method in pressure signal, need to note the following problem, in order to ensure fire pump advocate reserve of switch reliable.
Pressure of 1. report contact expresses appropriate to be set on the manager giving water of fire pump, before should be not being set in fire pump valve (press current direction) . Pressure set value should be more than the water supply pressure of cistern of exalted fire control to be worth. This is the position because of pressure signal should the water supply operating conditions of fire pump of bona fide report and system. If pressure watch is set before fire pump gives water a powerful person, and valve is shut by accident, criterion although fire pump moves normally, can show normal water supply pressure, but water supply operating mode of the system is abnormal. Accordingly, the switch that uses pressure signal to control a method still can adjust the water supply operating mode with the abnormal pipeline of fire pump, start the fire pump of pipeline of another water supply in time.
In the circuit design that 2. judges in signal control, switch needs to set proper time delay time. This basically is the time that has course of the current inside a time that start and conduit as a result of the need after fire pump is started, the time delay time of judgement needs to be more than two afore-mentioned elements, can use 1 ～ 2min commonly. Such, the control value of signal of electric contact pressure just has authenticity.
3. pressure signal controls methodological switch to be able to be appointed arbitrarilyFire pumpadvocate pump or reserve pump, also but fixed switch.
The control of 4. fire pump besides automata, due still on the spot (the hand is moved) pilot function. The working signal of fire pump needs to convey to control a center to fire control, so that surveillant, control is mixed of Lou Yu accuse a record oneself. In the design of fire control power source appropriate considers enough fire pump to use capacitance. In the switch of fire pump, the proposal does not stop the power supply of the first fire pump, press the state design of power supply of two fire pump namely, the operating conditions that such is helpful for that satisfy system of fire control water supply to fall in excess load condition, and can reduce fire pump the time-interval when switch, make fire pump devoted move as soon as possible, increase the time of fire control water supply.
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