Mechanical Seals

Multi Spring Balanced Seal

LP20 & LP21

The Multi Spring Balanced Seal is engineered for reliable sealing in pumps operating under high pressure and demanding process conditions. Its multi-spring arrangement provides uniform face loading, while the balanced seal design reduces hydraulic forces on the seal faces, ensuring stable performance, lower wear, and longer service life. Established in 2002, Lineproof Engineering in Mumbai designs and supplies precision mechanical shaft seals and engineered sealing systems developed to enhance pump efficiency, operational stability, and process reliability across various industrial sectors.

Multi Spring Balanced Seal for Mechanical Seals

Face Material

Carbon, Ceramic, Silicon Carbide, Tungsten Carbide, Lecrolloy.

Metal Parts

SS 316, SS 304, Hastelloy C, Monel, Alloy 20.

Secondary Seal

Elastomers, PTFE, GFT

Operating Limits

  • Shaft Diameter 14 mm to 100 mm
  • Pressure 35 bar (max.)
  • Temperature −60 °C to 200 °C
  • Velocity 20 m/s

Characteristics

  • Single acting
  • Balanced
  • Inside mounted
  • Independent of direction of rotation
  • Conforms to DIN 24960

Application

  • Petrochemical processing
  • Petroleum refinery operations
  • General chemical handling
  • Light hydrocarbon services
  • Industrial pump systems
  • Process equipment handling
Multi Spring Balanced Seal Technical Drawing
No. Component No. Component
1 Seal Ring 7 O-Ring
2 Seal Ring 8 Retainer
3 Mating Ring 9 Spring
4 O-Ring 10 Snap Ring
5 Back-Up Ring 11 Thrust Ring
6 Wedge 12 Grub Screw

Download Brochure

Download the brochure for sealing solutions, specifications, and technical details.

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