Mechanical Seals
Multi Spring
Multi-spring balanced/unbalanced seal providing uniform face loading.
The industry standard for chemical process pumps. Uses a series of small peripheral springs around the seal face to distribute mechanical face load with uniform mathematical precision, ensuring even wear and reliable sealing.
Product photo · Multi Spring
Specifications
Technical profile
- Design
- Multiple peripheral springs, balanced or unbalanced
- Standard
- ISO 3069 / DIN 24960 / API 682 Category 1
- Shaft size
- 14 mm to 120 mm
- Face materials
- Silicon Carbide (SiC) / Tungsten Carbide / Antimony Carbon
- Secondary seal
- FKM / FFKM / EPDM / PTFE wedge or O-ring
- Pressure rating
- Up to 35 bar (balanced)
- Temperature
- -50 °C to +250 °C
Specifications are typical and vary by variant. Share your duty conditions for an exact recommendation.
Key benefits
Why this product
- Uniform face pressure distribution prevents thermal distortion and blow-by
- Springs are isolated from process fluid in internal designs, preventing corrosion
- Interchangeable seal faces allow quick reconfiguration for different solvents
- Standard fitment across ANSI and ISO chemical process pumps
Applications
Typical industries
ChemicalPharmaOil & GasDye Manufacturing
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Need this multi spring for your line?
Share your duty conditions and drawings — our team responds with a technical recommendation and a firm quote.