Standard Cartridge Seals

ANSI Standard Single Cartridge Seal

ANSI LP300

The ANSI Standard Single Cartridge Seal is designed for efficient sealing in pumps operating under standard industrial conditions. Its single cartridge design allows quick installation, accurate alignment, and reduced maintenance while providing stable sealing performance for various process fluids. Since 2002, Lineproof Engineering, based in Mumbai, has specialized in manufacturing precision-engineered mechanical shaft seals and single cartridge sealing solutions that deliver consistent performance, durability, and operational reliability across multiple process industries.

ANSI Standard Single Cartridge Seal for Standard Cartridge Seals

Face Material

Silicon Carbide, Carbon Graphite (Resin Impregnated), Tungsten Carbide.

Metal Parts

SS 316, SS 304.

Secondary Seal

EPDM, FKM, FFKM, PTFE.

Operating Limits

  • Shaft Diameter 1.000" to 3.750"
  • Pressure 25 bar
  • Temperature −40 °C to 220 °C
  • Velocity 16 m/s

Characteristics

  • Single seal
  • Available for standard (LP300-ASPN) and big bore (LP300-ASPN) seal chambers
  • Cartridge
  • Balanced
  • Independent of direction of rotation
  • Single seals with flush (-ASPN, -ABPN) and with quench combined with lip seal (-ASQN, -ABQN) or throttle ring (-ASTN, -ABTN)

Application

  • Process industry
  • Petrochemical industry
  • Chemical industry
  • Pharmaceutical industry
  • Power plant technology
  • Pulp and paper industry
ANSI Standard Single Cartridge Seal Technical Drawing
No. Component No. Component
1 Seal Face 9 Set Screw
2 O-Ring 10 Snap Ring
3 O-Ring 11 Cover
4 O-Ring 12 Assembly Fixture
5 Spring 13 Screw
6 Seat 14 Gasket
7 Shaft Sleeve 15 Screw Plug
8 Drive Collar 16 Lip Seal (-QN) / Throttle Ring (-TN)

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