Single Spring Seal US 1507/1508
Single Spring Seal US 1507/1508
The US 1507/1508 Single Spring Seal is a mechanically fitted seal for rotary applications in pumps, agitators, and mixers. It uses a single helical spring to provide consistent and uniform force that has been quite effective in providing a tight seal both dynamically and statically. Such a seal would normally be adopted in applications which require compactness, but with reliability under general conditions of pressure and temperature. Its design is versatile to such an extent that it requires no hassle for installation and maintenance, hence appropriate for a wide range of industrial applications.
Key Design Features
- Sturdy & rugged design
- Reliable performance
- Bi-directional positive drive
- Fits on ANSI, ISO & DIN pumps
- Easy to install
- Available in cartridge design
Operating Range & Limits
- Pressure : Upto 16kg
- Size: 12mm to 100mm
- Temperature : - 20ºC to 280ºC (Depending upon elastomers)
- Speed : 2900 rpm
Materials of Construction
- Metal Parts : SS316
- Elastomers : Viton, Aflas, EPR, PTFE, FFKM, STV, GFT
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Rotary Face : SiC, TC, Carbon
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Stationary Face : SiC, TC, Ceramic
Manufacturing Standards & Quality Inspection
Every mechanical seal is manufactured with optical-grade precision at our Mohan Nagar, Ghaziabad facility.
ISO 9001:2015 Certified
Manufactured in strict adherence to international quality management and material traceability.
Monochromatic Light Inspection
100% seal faces verified with optical flats under helium light (< 2 light bands flatness).
Hydrostatic Testing
Hydrostatically pressure-tested to 1.5x working pressure for zero operational leakage.
24-48 Hr Fast Dispatch
Emergency breakdown dispatch across Delhi NCR, Gujarat, Maharashtra, and worldwide.
Single Spring Seal US 1507/1508 - Frequently Asked Questions
The heavy open helical coil spring resists clogging, fibrous buildup, and suspended solid accumulation that typically jams multiple small springs in wastewater and sewage centrifugal pumps.
Single coil springs depend on shaft rotation for drive torque. A clockwise shaft rotation (viewed from the drive end) requires a right-hand wound spring, while counter-clockwise rotation requires a left-hand spring. Bidirectional drive options are also available.
These seals typically handle pressures up to 10 bar, temperatures from -20°C to +140°C (depending on elastomer selection), and speeds up to 3000 RPM.
Yes. They are engineered to directly replace OEM seals in KSB, Grundfos, Kirloskar, and Johnson pumps with zero modification.
Request Quotation & Technical Fitment
Share your equipment specifications. Our engineering team will recommend the optimal seal metallurgy, face pairings, and provide a formal price quote within 2 business hours.
Sealing Solutions Across Key Industries
Automotive Components
Textiles
Pharmaceuticals
Chemical Processing
Sugar
Distillation
Food & Beverage
Steel
Power & Energy
Paper
Oil & Gas
Petrochemical Plants
Paint
Pumps & Compressors
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