OEM Mechanical Seal Pump Grundfos Agitator Shaft Seal GLF-SA-32L GLF-SA-38S
Original equipment manufacturer mechanical seal designed for Grundfos agitator pumps, compatible with models GLF-SA-32L and GLF-SA-38S.
Product Specifications
Mechanical Seal SA Lower Vulcan 42 Seal For Grundfos Pump
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Material Composition |
Application: Upper seal for Grundfos Sarlin Pumps
Replacement: Vulcan 40S8
Available Sizes: 30mm, 38mm, 50mm, 65mm
Pressure: ≤ 1.6 MPa
Temperature: -20°C to 120°C
Linear Speed: ≤ 15 m/s
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Rotary Ring: SiC/TC
Stationary Ring: SiC/TC
Elastomers: NBR/Vit
Springs: SS304/SS316
Metal Parts: 410S/SS304/SS316
Compatible Mediums: Water, oil, sewage, weak acid, weak alkali, and other weak corrosive mediums
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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 immediately for replacement.
Installation Instructions
The complete cartridge seal set is cleaned and thoroughly leak-tested before sale. To prevent damage, do not disassemble or clean components before installation.
Step 1: The fitting allowance between seal and shaft is dl h6 0.8. Ensure there is a leading edge at the shaft end. The shaft outside diameter at screw position should be 0.1-0.2mm smaller to prevent overtightening. Lubricate the shaft with oil.
Step 2: Place the cartridge seal into the pump chamber, then:
- A: Tighten four screw bolts of flanges, ensuring the medium leading hole "G" is at the top position
- B: Tighten four set screws to position the shaft sleeve on the shaft
- C: Remove four gauge plates - retain these for future installation and disassembly
- D: Connect the medium lead-in pipe with hole "G" to flush away friction heat and flush the seal chamber during pump operation
Final Check: After completing installation, turn the shaft by hand to verify smooth rotation. If the shaft does not rotate smoothly, the seal has been improperly installed.
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