Home > News > Content
Pump Seal Has Been Widely Used
Sep 12, 2017

Pump seal is a rotary shaft seal device, is also the world's most important equipment shaft seal. In the coal chemical industry, there are a lot of equipment and equipment need to be sealed, and pump sealing technology with its good sealing effect, in the production of such enterprises has made a wide range of applications.

The role of the pump seal is to prevent the pump impeller and pump shell between the abrasion, improve the water inlet of the pump state, improve the efficiency of the pump.

Pump seal method: 1. Install the left part; installed on the sealing plate 2. Then install the right side of the dynamic ring, Pump Seal moving ring with the static ring sealing surface to be clean 3. Then install the key and the impeller. Nuts. Before installation, carefully check the assembly of the number of parts is sufficient, the components are damaged, especially the dynamic and static ring for bruises, cracks and deformation defects. Pump Seal If there is a problem, repair or replace the new spare parts. Check that the chamfering of the sleeve or gland is appropriate and that it must be trimmed if it does not meet the requirements. Pump Seal The pump seals the components and their associated assembly surfaces, which must be cleaned with acetone or anhydrous alcohol before installation. The installation process should be kept clean, especially moving, static ring and auxiliary sealing elements should be no impurities, dust. Moving, Pump Seal static ring surface coated with a layer of clean oil or turbine oil. The upper cover should be made after the coupling is correct. Bolts should be tightened evenly to prevent the gland section skew, with a stopper or special tools to check the points, the error is not greater than 0.05 mm. Check the gland with the shaft or the outer diameter of the sleeve with the gap (and concentricity), must ensure that even around, Pump Seal with the feeler check the tolerance of not more than 0.10 mm. Spring compression should be carried out in accordance with the provisions, not allowed to have too large or too small phenomenon, the required error of ± 2.00 mm, over the General Assembly to increase the cross-section pressure, accelerated section wear. Too small will cause less than the pressure can not play a sealed role, Pump Seal spring loaded in the spring seat to move flexible. With a single spring to pay attention to the spring of the rotation, the spring should be the rotation of the axis of the opposite direction of rotation. After moving the ring to be installed to maintain a flexible movement, Pump Seal the dynamic ring pressure to the spring should be able to automatically rebound back.

What is the pump seal method?

First, what are the methods:

1, packing seal: asbestos rope winding. 2, pump seal: dynamic ring plus static ring plus "O" ring seal. 3, soft packing seal: with carbon fiber soft clay wrapped around the shaft, Pump Seal pressurized injection.

Second, which method is good?

Packing is easy to replace; water pump seal does not hurt the shaft but the replacement of trouble; soft packing seal is not easy to repair the shaft but when the pump is easy to seepage.