Chesterton’s 155T Single Cartridge Mechanical Seal:

• Designed specifically for small frame pumps with a 5/16 inch stuffing box cross section such as Goulds 3196 ST series and Duriron Group 1 Series pumps.  
• Advanced face design resists distorting effects of pressure and temperature to maintain flatness in hot water and fuel oil applications. 
• Completely adjustable gland allows this ingenious design to fit a wide range of equipment bolt circles and bolt sizes without modification.

Minimizes Inventory

• Seal can be rebuilt using a hardware kit and individual faces.
• Seal repair and material changes are greatly simplified.
• Inventory can be minimized to necessary shaft size cartridges and varied spare faces for application flexibility.
• Can be used in thousands of different applications, the 155T is a proven performer.

Chesterton’s 155T Single Cartridge Mechanical Seal:

• All O-rings are either static or move on non-metallic, non-fretting surfaces. This eliminates wear and the need of refurbishing sleeves or shafts.
• Seal face support shoulder is precisely square.
• Integral drive pads cannot fall out.
• Hydraulically balanced faces for low frictional heat reduces the crystallizing on the Out Board side of the seal faces.
• Flush port can be rotated 360° for ease of piping as required.
• Stationary springs, isolated to prevent clogging.
• Patented Adjustable Gland fits common bolt arrangements without modification.
• Self-Centering Lock Ring for superior concentricity.
  • Prevents face wobble and spring fatigue.