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Thursday, August 18, 2011

Seal Elastomer & O-Ring Material Info

When selecting the proper seal materials for any application, Seal Faces, Elastomers (O-Rings) and Metallurgy all need to be considered.  The Min/Max Temperature Ranges shown are typical for continuous use and should be used as a guideline.
  • BUNA-N (Nitrile)  :  -40°F to 215°F
  • EPR / EPDM  :  -70°F to 300°F
  • VITON  :  -20°F to 400°F
  • AFLAS  :  -20°F to 400°F
  • KALREZ  :  -20°F to 600°F
Please keep in mind that Chemical Compatibility, and not just Temperature, must also be considered when selecting the correct elastomer material.  For assistance to ensure your mechanical seal is suitable for your application, please contact us.

1-866-636-SEAL (main)
www.pumpsealkits.com
Email : sealing@pumpsealkits.com

Wednesday, August 10, 2011

Convert your Packed Pump to a Cartridge Seal

Tired of using Conventional Packing in your centrifugal pumps?  Tired of the mess of cutting packing rings onsite?  Tired of the damage to the pump shaft and/or shaft sleeve? Tired of the mess, safety and housekeeping issues?  We have a solution....

Conventional Packing is often considered an easy solution to sealing a pump, but most often its the opposite (more on this in a future post).  For a truly simple way to convert to a mechanical seal, look no further than our Type C2 Single Cartridge Seal - Specifically designed to replace Conventional Packing and Component Seals.

Why convert to this Cartridge Mechanical Seal?
  • Modular Design : Install and Remove as a complete unit
  • 2-Piece Gland : 2 bolt gland fits most stuffing boxes
  • Hydraulically Balanced Design : Less power consumption; Operate at higher speeds and pressures
  • Non-Shaft Fretting : Will not fret or damage the pump shaft
  • Material Options : Wide range of Seal Face and O-Ring materials to suit most any application
  • Field Rebuildable Design : Save $$ with a Seal Rebuild Kit vs. buying complete new seal

Recent years have brought many legislative changes and environmental considerations to all levels of plant operations.  Added to this are current economic challenges in finding cost savings any where possible.

Packed Pumps have costs that mostly go unnoticed.
  • Continuous Leaks = wasted money in product or clean flush water
  • Power Consumption = wasted money b/c packing increases HP draw vs. mechanical seal
  • Increased Maintenance = wasted time to adjust packing leakage on each pump
  • Health & Safety = wasted time to keep equipment and area clean from package leakage
  • Material Cost = wasted money b/c packing is like toilet paper - you'll never stop buying it
Whether you have one or fifty packed pumps in your operation, this simple change will have a quick ROI.  Contact us if a packing to seal conversion sounds interesting - we are here to help.

1-866-636-SEAL (main)
www.pumpsealkits.com
Email : sealing@pumpsealkits.com

Wednesday, August 03, 2011

QUIZ : What is the primary purpose of the Spring in a Component Mechanical Seal?



a) To keep the seal faces together while the pump is operating?
b) To keep the seal faces together while the pump is not operating?
c) To compensate for misalignment 
d) All of the above


ANSWER : (b) Contrary to popular belief, the primary function of this spring is to keep the seal faces together when the pump is not operating (turned off).    It is the hydraulic pressure of the pumped fluid within the seal chamber that keeps the seal faces together during operation.  The elastomer diaphragm (bellows) within the rotary head of the seal will flex to compensate for misalignment.