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Grundfos Multi-Stage Pump Mechanical Seal GLF-SPK-12mm
High-quality mechanical seal designed for Grundfos multi-stage pumps, compatible with SPK2/4/8/16 models with slow-wire configuration.
Technical Specifications
Parameter
Specification
Temperature Range
-30℃ to +200℃
Maximum Pressure
≤ 2 MPa
Maximum Speed
≤ 10 m/s
Compatible Medium
Water
Material Composition
Component
Material
Rotary Ring
SiC/VIT
Stationary Ring
SiC/VIT
Spring
SUS304/SUS316
Stationary Seat
SUS304/SUS316
Secondary Seal
FKM/EPDM
Rotary Ring Holder
SUS304/SUS316
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 component is damaged, contact us immediately for replacement.
Installation Instructions
The complete cartridge seal is cleaned and leak-tested before sale. Do not disassemble or clean components before installation to prevent damage.
Step 1: The fitting allowance between seal and shaft is dl h6 0.8. Ensure leading-edge at shaft end. Shaft diameter at screw position should be 0.1-0.2mm smaller to prevent over-tightening. Lubricate shaft with oil.
Step 2: Place cartridge seal into pump chamber, then:
A: Tighten four flange screw bolts, ensuring medium leading hole "G" at top position
B: Tighten four set screws to position shaft sleeve on shaft
C: Remove four gauge plates (retain for future installation/disassembly)
D: Connect medium lead-in pipe with hole "G" to flush away friction heat and seal chamber during pump operation
Final Check: After installation, turn shaft by hand to verify smooth rotation. If shaft doesn't rotate smoothly, seal was improperly installed.
We are committed to establishing long-term cooperative relationships with clients by supplying high-quality products and exceptional service.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Year Established:
2002
Total Annual:
3000000-5000000
Employee Number:
50~80
Ecer Certification:
Verified Supplier
Guangzhou Yuemi Mechanical Seals Co., Ltd
Guangzhou Yuemi Mechanical Seals Co., Ltd. is a professional enterprise engaged in the design, development, manufacturing, and sales of various mechanical seals. We have complete production and testing equipment, and a high-quality workforce. It has f...
Guangzhou Yuemi Mechanical Seals Co., Ltd
Guangzhou Yuemi Mechanical Seals Co., Ltd. is a professional enterprise engaged in the design, development, manufacturing, and sales of various mechanical seals. We have complete production and testing equipment, and a high-quality workforce. It has f...