Gold Member Since 2017
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Shanghai Trisun Parts Manufacture Co., Ltd.

Mechanical Seal, Pump Seal, Metal Bellow Seal manufacturer / supplier in China, offering Mechanical Seal, Pump Seal, Chesterton 491, Aesseal, Flexibox, Pentair, Amstrong, Bock Fk40 Seal, Bitzer Seal, Thermoking, Wando, Carrier Compressor Seal, Ffkm, DuPont Kalrez, Chemraz O-Ring, Perfluoroelastomer, Perlast, FEP and so on.

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Supplier Homepage Product component seal Mechanical Seal, Pump Seal, Chesterton 491, Aesseal, Flexibox, Pentair, Amstrong

Mechanical Seal, Pump Seal, Chesterton 491, Aesseal, Flexibox, Pentair, Amstrong

FOB Price: US $1 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1/ Piece
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Port: Shanghai, China
Production Capacity: 200, 000
Payment Terms: L/C, T/T, D/P, Western Union, Paypal

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Product Catalog
industrial pump mechanical seals
47 Products
Product Image
Product Name
FOB Price
Basic Info
  • Model NO.: TS 491
  • Pressure: High Pressure Mechanical Seals
  • Temperature: High Temperature Mechanical Seal
  • Standard: Standard
  • Balance: Balanced
  • Service in USA: Door to Door Service and Branch in USA
  • Transport Package: Neutral Packing or Customized
  • Origin: China
  • Structure: Single End
  • Speed: High-Speed Mechanical Seal
  • Performance: Temperature
  • Type: Chesterton 491
  • Type 491: High Quality and Quick Delivery
  • Trademark: TRISUN
  • Specification: all sizes
  • HS Code: 84842000
Product Description
Our mechanical seal model 491 can replace  CHESTERTON 491, which is widely used for industrial pumps.  

TS491 can be run against many different stationary seal rings for maximum flexibility in many applications. The non-fretting design will not destroy the shaft sleeve or any metal parts. The 491 has a balanced O-Ring design with anti-clog features, springs out of the fluid, dynamic O-Ring moves on a clean surface.
Monolithic seal faces
Non-clog isolated springs
Dynamic O-Ring is positioned on a replaceable component surface
Fits EN12756 L1K dimension
Technical Data 
Sizes16 mm to 110 mm (0.625" to 4.375")
Pressure711 mm (28") Hg Vacuum to 10 bar g (150 psig*)
Temperature-55° C to 300° C ( -67   F to 570   F)
Speed20 m/s (4000 fpm)
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