Mechanical Seals
Single Spring
Unbalanced/balanced pusher seal with a single coil spring for general utility.
Robust pusher-type mechanical seal featuring a large-diameter single coil spring. Highly resistant to clogging in dirty fluids and wastewater, offering simple installation and long service life across pumps and agitators.
Product photo · Single Spring
Specifications
Technical profile
- Design
- Single coil helical spring, unbalanced/balanced pusher
- Shaft size
- 10 mm to 100 mm
- Face materials
- Carbon / Ceramic / Silicon Carbide (SiC) / Tungsten Carbide
- Secondary seal
- FKM (Viton) / EPDM / NBR / PTFE O-rings
- Pressure rating
- Up to 10 bar (unbalanced) / up to 25 bar (balanced)
- Temperature
- -30 °C to +200 °C (elastomer dependent)
- Speed
- Up to 15 m/s rubbing speed
Specifications are typical and vary by variant. Share your duty conditions for an exact recommendation.
Key benefits
Why this product
- Large open coil spring prevents clogging by fibrous solids and sludge
- Self-aligning capability compensates for minor shaft deflection
- Direct drop-in replacement for standard industrial pump seal chambers
- Cost-effective sealing solution with simple field rebuild capability
Applications
Typical industries
ChemicalFoodBreweriesOil & Gas
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Need this single spring for your line?
Share your duty conditions and drawings — our team responds with a technical recommendation and a firm quote.