FTK-45mm Ebara Mechanical Seal Face for Submersible Electric Pumps
The Ebara combined mechanical seal 560DA-45A FTK-45 is a high-quality double seal designed for submersible pumps. This cost-effective solution provides complete compatibility with original equipment specifications.
Water Pump Model Compatibility
Mechanical Seal Dimensions
| Model |
d(mm) |
d, |
d2 |
d3 |
ds |
d7 |
l1 |
12 |
13 |
14 |
l5 |
| FTK16 |
16 |
18.2 |
41 |
41.5 |
23.0 |
33 |
26.5 |
7.5 |
10 |
9.0 |
5.0 |
| FTK-20 |
20 |
21.2 |
45 |
43.8 |
27.0 |
38 |
29.0 |
7.0 |
10 |
12.0 |
5.0 |
| FTK-25 |
25 |
26.4 |
52 |
51.0 |
30.5 |
47 |
34.5 |
7.0 |
13 |
14.5 |
8.5 |
| FTK-40 |
40 |
41.2 |
75 |
75.0 |
50.5 |
65 |
48.6 |
12.0 |
21 |
15.6 |
13.0 |
Technical Parameters
| Parameter |
Specification |
| Temperature Range |
-30℃ to +150℃ |
| Maximum Pressure |
≤0.3 MPa |
| Maximum Speed |
≤4500 rpm |
| Compatible Media |
Clean water, seawater, gas engine antifreeze |
Material Composition
| Component |
Material Options |
| Rotary Ring |
Ceramic / Silicon Carbide (SiC) |
| Stationary Ring |
Plastic Carbon / Carbon / Silicon Carbide (SiC) |
| Spring |
SUS304 / SUS316 Stainless Steel |
| Stationary Seat |
SUS304 / SUS316 Stainless Steel |
| Secondary Seal |
NBR / EPDM / HNBR / FKM Elastomers |
| Rotary Ring Holder |
SUS304 / SUS316 Stainless Steel |
Installation Preparation
- Shaft outside diameter tolerance: ±0.05mm
- Shaft run out: <0.1mm
- Shaft end float: <0.13mm
- No sharp edges on the shaft over the O-ring area
Important Note: During installation, avoid scratching or damaging the O-ring. If any damage occurs, contact us immediately for replacement.
Installation Instructions
The complete cartridge seal assembly is thoroughly cleaned and leak-tested before sale. To prevent damage, do not disassemble or clean components before installation.
Installation Steps
- The fitting allowance between seal and shaft is dl h6 0.8. Ensure a leading-in edge at the shaft end.
- The shaft outside diameter at screw positions should be 0.1-0.2mm smaller to prevent over-tightening.
- Lubricate the shaft with appropriate oil before installation.
- Place the cartridge seal into the pump chamber, then:
- Tighten four screw bolts of flanges, ensuring the medium leading-in hole "G" is at the top position
- Tighten four set screws to position the shaft sleeve on the shaft
- Remove four gauge plates (retain for future installation and disassembly)
- Connect the medium lead-in pipe with hole "G" to flush away friction heat and maintain seal chamber cleanliness during pump operation
Post-Installation Check: After completing installation, manually rotate the shaft to verify smooth rotation. If the shaft does not rotate smoothly, the seal may have been improperly installed.
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