China Components Material Series-FFKM manufacturers and suppliers | GuoWei

Components Material Series-FFKM

Kratki opis:

Perfluoroelastomer(FFK)is synthetic elastomer, without -H linkage. This kind of ruber, which can effectively work under the max temperature of 327℃ and bear corrosion of any chemical mediator, has perfect tolerance to oil, chemical& heat.
Fluocarbon linkage is the main reason tohigh stability perfomance. The refractory compression permanent deformation performance of Peiluoroelastomer is superior of that of Viton. t is widely used in semiconductor manufacture, petrochemical,gas extraction, medical food and aerospace industries because of the champion nature.


Detalji o proizvodu

oznake proizvoda

Dupont-Kalrez

Property

Unit

Kalrez 6375

Kalrez 4079

Tensile Strength @ Break

Mpa

15.1

16.9

kgf/cm Modulous @100%

154Mpa

172/7.2

7.3

kgf/cm2

73.4

74

/

Elongation percentage@ Break

%

160

150

Hardness

HS

75

75

Heat Resistance Temperature

X)

275

316

70 hr in room temperature

/

/

22

70 ht ar 2041:

/

30

25

China -FFKM

Property

unit

 

Hardness

HS

72

Tensile Strength @ Break

Mpa

20

Enlogation Percentage @ Break

%

175

Modulous @100%

Mpa

10.5

Heat Resistance Temperature

P

270P

70 hr in room temperature

/

19

70 hr at 204 °C

/

49

Installlation nstructions

Preservation:
1 Shaft outside diameter is within tolérance 0 comm
2.Shaft run out<0.1mm
3.Shat end float<0.13mm
4 No sharp edges on the shaft over the o ring
Note:
During the installation don’t scratch or damage the o ring . if anything is damaged , please contact with our local agents to replace a new one.

Installation in structions:
The full set of cartridge seal is cleaned and exactly passed leakage examine before sale.In order to avoid damage, don’t disassemble and clean the parts again before fixing.
2 The fitting allowance between the seal and shaft is dl h6 0.8, and there should be leading-inedge at the end of shaft. The outside diameter of shaft at the position of screw should be 01 -0.2mm smaller, resisting the screw over-tighten Lubricate the shaft with oil.
3. Place the cartridge seal into the pump chamber, then:
    A: Tighter four screw bolts of flanges, ensuring the medium leading in hole”Gat the top Position.
    B: Tighter four set screws and position the shaft sleeve on the shaft.
    C: Remove four gauge plates. Please keep them and they will be used in future installation and dissassembl.
    D Connect the medium lead-in pipe with hole”Gin order to flush away the friction heat and flushing the seal chamber when pump running.

Note:
After complete the installation, turning the shaft by hand to check for the rotation. If the shaft could not rotate smoothly, seal had been improperly installed.


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