AS-CHS170 seal to replace Chesterton 170 single cartridge mechanical seal

Operating Conditions：

sizes：25 mm to 228 mm (1.00"to 9.00")

pressure：<17 bar

temperature：-55° C to -300° C (-67 ̊ F to 570 ̊ F)

speed：11 m/s (2200 fpm)

Materials Combination: 

face: SSIC, TC

elastomers: FKM, EPDM, FEPM

metals:  SS316

springs:  Alloy C-276

Features/Benefits：

Ideal for harsh & highly consistent slurry  environments

Robust design with high-strength drives

Simple design with ease to maintain

No need for external seal flushes

Unique  no-clog pressure plate design

Springs locations are totally outside the seal

Micro-polished seal faces

Background Knowledge：

How Surface Texture Improves Tribological Properties of Mechanical Seal Components

One of the more important functions of surface texture is to improve surface bearing capacity and improve lubrication conditions. That is, each microstructure can be considered as a tiny hydrodynamic bearing, which generates additional hydrodynamic pressure during the relative motion, so that a thin layer of fluid lubricating film is formed between the friction pairs, so that the two surfaces' states are in converted from non-contact to contact which is of great significance for reducing friction and wear of mechanical seals. On the other hand, the surface texture can also play the role of storing wear debris and lubricating oil.