SINGLE SPRING MECHANICAL SEAL

Reliable Rotary Sealing with Simplicity & Strength

Overview

Single Spring Mechanical Seals are compact, efficient, and widely used sealing solutions designed for pumps, mixers, and agitators operating under moderate pressure and temperature conditions. Their single-coil spring design allows for excellent axial flexibility and self-alignment, making them ideal for standard-duty rotary equipment.

Key Features

Single coil spring for uniform face loading
Compact design fits most standard pumps
Easy installation and replacement
Cost-effective sealing option
Handles moderate misalignment and shaft deflection
Compatible with wide range of shaft sizes & materials

Specifications

Component & Material Options

Seal Faces: Carbon, Silicon Carbide, Tungsten Carbide
Mating Faces: Ceramic, Silicon Carbide, Stainless Steel
Secondary Seals: NBR, EPDM, Viton, PTFE
Spring & Metal Parts: SS304, SS316, Hastelloy-C (optional)

Custom face combinations available for chemical, abrasive, or high-temp environments.

Technical Details

Shaft Diameter Range: 12 mm – 100 mm (or as per request)
Pressure Rating: Up to 12 bar (standard)
Temperature Range: -20°C to +180°C
Speed: Up to 3000 RPM
Direction of Rotation: Bi-directional or uni-directional (as per type)

Applications

Water pumps (clean & slurry)
Chemical process pumps
Oil & fuel transfer systems
Pharmaceutical & cosmetic machinery
Light-duty chemical pumps
Dairy and food processing equipment

Frequently Asked Questions (FAQs)

Q: Is a single spring seal good for high-viscosity fluids?
A: Generally used for low to medium-viscosity fluids. For high-viscosity or abrasive media, a multi-spring or cartridge-type seal is recommended.

Q: How do I choose between carbon and silicon faces?
A: Carbon is standard for water/oil, silicon carbide is better for corrosive/abrasive media.

Q: Can it be customized for specific pump brands?
A: Yes! We offer OEM-compatible designs for major pump models like Kirloskar, KSB, Grundfos, and more.