Structure features
1. HW pump combines the pump cover, impeller, shaft, bushings
   and bearings and other major components. See chart
2. Pump cover connects to pump and inlet respectively. There
    should be adequate clearance between plane and the impeller
    pump cover. Gap is too small, will cause friction; gap is too
    large, will lead to a lot of pressure water pump body back, so
    that reduce the pump efficiency. Actual appropriate clearance
    is 0.3 ~ 0.7mm (the shaft into the pump inlet), the gap can be
    adjusted by changing the paper pad thickness.
3. Seal device consists of packing, packing gland, packing ring,
    and pump the fill ring. Its role is to prevent air suction pump
    and to prevent excessive water flow out from the pump along
    the axial.
4. Axil sleeve is to protect the shaft. Timely replacement after worn.
5. Shaft is beared by single row radial ball bearing. Lubricating oil
    can be used on bearings - oil should be controlled between the
    lines marking on the oil benchmark;also grease can be used - can
    be added in the pump assembly. Supplement it during removing
    front cover and back cover.
6. The screw hole on the top of the pump is used for irrigation water
    or added water through connection of vacuum pump.
7. To expand the use of pumps to meet different requirements of
    users, can cut impeller (pump model is indicated by addition
    suffix letter.)
8. 150 ~ 350HW-type attachments are pump inlet and outlet to stay
    bent, live bending, foot valve and pulleys or couplings; 400 ~ 650
    HW attachments are pump inlet and outlet stay bent, check valve
    and pulleys or couplings. Customer choice; negotiate seperately
    when ordering 650HW.

Drive type :
According to customers different requirements , can choose coupling
connection type and powered by electric motor and also can choose
the belt pulley connection type powered by diesel engine .

Application :
HW series pumps can be used to transport clean water , and concentration
less than 3% paper pulp, the solution which PH=3~10 ,fiber length less than
80 mm . And any other liquid which temperature not exceed 50 degree . And
also widely used for agriculture irrigation ,industrial sewage water and city
water discharging