Grundfos 16mm Mechanical Seal Centrifugal Pump Shaft Seal CM10 15 20
Product Overview
Type: Suit for Grundfos CM series pumps
Replacement: AES SOS
Temperature: -20℃ to +180℃
Pressure: ≤1.2Mpa
Speed: ≤10m/s
Material: A.B,Q1,Q2,P,E,V,F,G
Stationary Options
This mechanical seal offers two stationary configurations:
- Round stationary: GR-G11
- Elliptical stationary: GR-G11-E
Technical Specifications
| P (mm) |
D1 |
D3 |
T |
| 12 |
22.5 |
48 |
23.6 |
| 16 |
27.0 |
48 |
23.6 |
Detailed Specifications
Shaft Size: 12mm, 16mm
Face Material: Carbon, SiC, TC
Seat Material: SIC, TC
O-rings: NBR, EPDM, Fkm, Aflas, Kalrez, Chemraz
Spring: SS304, SS316
Metal Parts: SS304, SS316
Compatible Pumps
Grundfos pumps: JP Ch8 Ch12 CRK (I) 2 CRK (I) 4 SPK1 SPK2 SPK4 SPK8 Cr2 Cr4 AQQE AQQV 96932392
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
Important Note: During installation, avoid scratching or damaging the O-ring. If any damage occurs, contact us for replacement.
Installation Instructions
- Cartridge seal is pre-cleaned and leak-tested. Do not disassemble before installation.
- Ensure shaft fitting allowance is dl h6 0.8. Lubricate shaft with oil.
- Place cartridge seal into pump chamber and:
- Tighten four flange bolts, ensuring medium leading hole "G" is at top position
- Tighten four set screws to position shaft sleeve
- Remove four gauge plates (keep for future use)
- Connect medium lead-in pipe to hole "G" for friction heat removal and seal chamber flushing
Post-Installation Check: After installation, manually rotate shaft to verify smooth rotation. Rough rotation indicates improper installation.
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