Modification of Mechanical Seal for Submersible Sewage Pump

Modification of Mechanical Seal for Submersible Sewage Pump
     Submersible sewage pump mechanical seal transformation As the cone mechanical seal is particularly suitable for containing solid suspension of pumping equipment, so the sealing surface to tapered seal. Static ring material is filled with tetrafluoroethylene, dynamic ring material is stainless steel, tungsten carbide surface coating. Its main features are as follows.
(1) the submersible pump cone mechanical seal ring is a cone ring, with the static ring wear, contact bus length L growth, static ring diameter also increases.
(2) the length of the busbar sealing surface is very short (stable operation of the initial 0.3-0.5mm), so the contact surface temperature difference between inside and outside, low temperature rise, reducing the degree of adhesive wear. Static ring has a large compressive section, the pressure deformation is small.
(3) seal and dynamic ring has a certain degree of floating, the sealing surface can always maintain a good contact state, suspended particles in the media is not easy to enter the sealing surface. Media leakage direction and its centrifugal force at a certain angle, to reduce the leakage benefit.