DROPSA PoliPUMP eco 사용자 운영 및 유지보수 매뉴얼 - 페이지 8

{카테고리_이름} DROPSA PoliPUMP eco에 대한 사용자 운영 및 유지보수 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. DROPSA PoliPUMP eco 14 페이지. Multi-line electric pump for grease

7. OPERATING INSTRUCTIONS

 The unit may be put into operation by specialized personnel.

 Using the pump submerged in fluids or in a particularly aggressive or explosive/flammable environment is prohibited

unless it has been prepared ahead of time by the supplier for this purpose.

 Use gloves and eye protection as required by the lubricant safety data sheet.

 DO NOT use lubricants that are aggressive to NBR gaskets. If you are unsure, contact the Dropsa S.p.A technical office

for a detailed list of recommended lubricants.

 Never ignore health hazards and always follow sanitary regulations.

 Always use suitable piping for the operating pressure.

 Check the integrity of the pump;

 Check the lubricant level in the reservoir (min/max indication on the reservoir), in case of low level, proceed as

described in Section 7.3 Filling the reservoir;

 Ensure that the pump operates at operating temperature and that the pipelines are free of any air bubbles;

 Check the correct connection of electrical devices.

To determine the maximum operating pressure, it is necessary to know the pressure drop of the pipeline connected to the

pumping elements.

As an example, the following diagram shows the pressure drop of the delivery pipeline flow by unit length depending on

the operating temperature and for a particular type of lubricant (in this case NLGI 00 grease with 160cSt base oil and

NLGI2 grease with a 180 cSt base oil)

Depending on these variables to achieve a proper supply to the delivery point, it is always necessary to ensure that the

pipeline pressure loss plus the pressure required at the lubrication point does not exceed the maximum pressure supplied

for pump delivery.

The maximum pressures corresponding to the delivery point of the pumping element, taking into consideration the most

severe operating conditions are as follows, taking the toughest operating conditions into consideration:

1÷12 pumping elements = 80 bar (1160 psi)

13÷24 pumping elements = 50 bar (725 psi)

25÷36 pumping elements = 35 bar (507 psi)