API 682
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  API 682 Mechanical Seals
Series LPA90S Multi-Spring Pusher Seal
  Description:
 
  Series LPA90S Multi-spring pusher seals are designed and qualification tested according to the stringent testing norms specified by API 682 standard. These dependable, engineered mechanical seals are developed to attain extremely low emmissions, typically to less than 150ppm. These seals are offered in single, dual unpressurized and dual pressurized arrangements for awide range of petroleum and light hydrocarbon Services in refinery and petrochemical industries.
   
  These special engineered seals provide the following advantages:
 
    To extend seal life beyond 25000 hours of operation.
    To reduce emission levels.
    To ensure plant and personal safety in hazardous environments.
    To standardise the seals and sealing systems.
 
   
  Materials of Construction-LPA90S
 
Seal Components Materials
Description Standerd Options
Seal Ring Resin Impregnated Carbon Antimony Impregnated Carbon Reaction Bonded Silicon Carbon

Self Sintered silicon Carbide

Nickel Bonded Tungsten Carbide

Mating Ring Reaction Bonded Silicon
Corbide
Self Sintered Silicon Carbide Nickel Bonded Tungsten Carbide
Retainer
Snap Ring
Thust Ring
Grub Screws
Sleeve
Gland
Drive Collar
Auxiliary Gland
Location Plate
Stainless Steel 316 Alloy 20
Hastelloy-C
Titanium
Spring Hastelloy C-276 ---
Secondary Sealing Elements Fluoroelastomer Perfluoroelastomer
   
 
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