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Essentials of Assembling and using the Mechanical seals

1.The radial skip of the equipment spinning exle shall be 0.04mm.the axial flee shall¡¡not be 0.1mm.

2.Keep the seat for the sealed chamber clean during the assembling. Clean the sealing fittings and check for perfect sealing surfaces. Keep the sealed positions away from the impurity and dust.

3.Any stroke, collision and knocking are strictly forbidden to avoid the seals due to the damage by above-mentioned rough operations.

4.Put some clean mechanical oil on the faces which are in contact with the seals for smooth assembling.
5.Give a uniform force to the screws while tightening them up during the assembling of the static ring gland to ensure verticality of the ring surface to the axis of the axle.

6.Push the motional ring with your hand after assembling to make it possible to move freely on the axle and elastic at a certain degree.

7.Turn the spinning axle by the handwheel after assembling to make sure that the axle spins with neither fatigue nor extra ease.

8.The equipment shall be filled with mediums before it is put into operation so as to avoid the failure of the seals due to dry friction.

9.Corresondong measures, such as washing, filtering and cooling shall be taken when the temperature of the mediums that may be easily crystallized or granulated exceeds>80¡æ. As to the other auxiliary system, refer to the relevant standards on the mechanical seals.

Size deviation of the positions for setting up the
seals and requirement to the surface roughness

Materials

Codes

  Materials

Codes
Ceramics(99%) A Silicone Rubber SR
Cermet A1 Neoprene NP
Ceramics(95%) A95 SUS304 1Cr
Red Creamic(95%) H0 AISI 361 316
Yellow Cer(99%) HU Stailess iron 2Cr
Silicone Nitrogen N Copper T
Silicone Carbide S Carbon Steel G
Hard Alloy W Iron A3 A3
Carbon (hot pressing) M1 Cast iron HT
Carbon (impregnated) M Plastics SU
NBR J Teflon F4
Viton F26 Resin B
Ethylene E Glass Fibre and Additive FB
Chlorine rubber L Carbon and Additive FM
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