SPECK Pumpen IN-VB 10-110 F — рекомендации по безопасному использованию насосного оборудования [61/100]

Safety

11|2018 EN 11

Qmax (%)

40 60 80 85 90 95 100 110 120

Temperatur (°C)

WG56.00.004-P

Fig. 1

2.9.5 Pressure surges

Valves which close suddenly can cause pressure surges which far exceed the maximum permissible

housing pressure of the pump.

 Install shock absorber or air vessel.

 Avoid valves which close suddenly or, if present, close them slowly.

2.9.6 Blockages in the pump

Pieces of dirt in the suction line can clog and block the pump.

 Do not operate the pump without the strainer basket or dirt trap.

 Check how easily the pump rotates before starting it up and after longer idle or storage periods.

 Remove any impurities from the suction line.

2.9.7 Drainage

An insufficient drain gap can damage the motor.

 Do not block or seal the drain gap between the pump housing and the motor.

 Never assemble the unit with the motor positioned underneath.

2.9.8 Risk of frost

 Drain the pump/unit and pipes at risk of freezing in plenty of time.

 Remove the pump/unit during periods of frost and store it in a dry room.

2.9.9 Difference in temperature

 The difference in temperature between the pump and the pumped fluid must never exceed 60 °C.

 From a difference in temperature of 30 °C the pump/unit must slowly be filled and warmed up in

order to avoid thermal shock.

2.9.10 Safe use of the product

Safe use of the product is no longer guaranteed in the following instances:

 If the pipework is not in proper condition.

 If the pump seizes.

 If protective devices are damaged or missing, e.g. protection against accidental contact.

 If there is stress on the pump/unit or pipes during installation.

 If the pump/unit is not installed correctly.

 If there is a technical fault.