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Main parts (refers to picture 1)

Comparison of the different types of seals

Note: The cooling water for seals above must be clean water. the yield of water50~80kg/h,pressure 0.5~1.0kg/cm2

Note: The cooling water for seals above must be clean water. Pressure1.5~4kg/cm2

        K, K1 TYPE DYNAMIC SEAL:   FIG. 2 & FIG. 3

     This is a dynamic seal using latest imported technology. It is composed of expeller on the back of impeller                                        and rubber seal rings. When the pump is in operation, the centrifugal force, which is created by the expeller,                                    maintains a negative pressure in the annular seal space, so there is no any leakage. At same time, the lips of                                    the rubber seals is not touching the sleeve, so there is no any erosion between the rubber seals and sleeve.                                      When the pump is stopped, the pressure in the stuffing box becomes positive. It presses the lips of the rubber                                    seals touching the sleeve closely, so the gap between the rubber seals and sleeve is sealed up. If the mixing                                      of the cooling water with the medium is allowable, the K1 type is recommended, which possesses cooling water                                      nipple, so the cooling is more effective (See fig. 2). The rubber seal rings are made of fluoro-rubber (Viton).                                             K & K1 type seals are suitable for handling the liquids containing high percentage of solid particles.

        (The cooling water for K1 type seal must be clean water)

          C2 TYPE NON-STANDARD MECHANICAL SEAL: FIG. 6

      this is an internal non-standard mechanical seal designed by Yixin Engineering Plastic Pump Factory. No cooling

      water is required by using heat conductive oil and air cooling system. Both the static ring and rotating ring

      are made of SiC. So this kind of the seal is suitable for pumping corrosive liquids containing big amount of

      solid particles. (The heat conductive oil is 25# transformer oil)

C3B type double end facemechanical seal：
My company design this built-in type non-standard mechanical seal on the basis of C3 mechanical seal.The original rear cooling water oil seal was changed to the relatively independent mechanical seal structure with the primary seal.When the cooling water pressure in excess of the prescribed value,the rear of the mechanical seal can automatic pressure relief to ensure the primary seal in allowing end face specific pressure within the scope of work and reduce the abrasion of the ring and static ring.Its life is longer than C3 type mechanical seal.The seal can be used to transport corrosive liquids which contain large amounts of particles.

C4 type double end face mechanical seal：
My company design the latest parallel type double end face mechanical seal with mounted outside and multiple springs structure.Its biggest characteristic is the ring and static ring have grooves corresponding to the place to form two parallel sealing surface and at the same time can  transport cooling water.Ring and static ring is made of silicon carbide,only silicon carbide and fluorine rubber contact medium and cooling water,so it is resistant to corrosion and wear and have a more excellent performance.In addition,the main parts of the seal are mounted outside so we can stop the pump to check the status of sealing surface at any time and it's convenient to maintain.The seal has simple and compact structure, high reliability, long service life and can transport corrosive liquids which contain a large amount of solid particles(Note: the cooling water is clean water).

295 8×Φ22