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BFR Buffer Seal

Movement

kc seals reciprocating

Reciprocating

Seal Configuration

pressure low

Low pressure
with pressure spikes

Action

kc seals single kc seals double

Single/Double

Description:

The BFR is a buffer seal used in tandem with a primary seal to help protect the primary sealing component from damage caused by pressure spikes and excessive heat buildup.

Features:
  • Superior abrasion and wear resistance
  • Relieves pressure build-ups
Applications:
  • Bulldozers
  • Cranes
  • Construction Equipment
  • Agricultural Equipment
  • Mobile Arm Trucks
  • Hydraulic Presses
  • Shears
  • Positive displacement pump
  • Large variable volume pump
Technical Data

Sealing Element:

Material:

Bronze Filled PTFE

Material Code:

1023

Energizer:

 

Material:

Nitrile

Material Code:

0101

Temperature:

-40°C to +120°C
-40°F to +250°F

Speed:

15 ft/s

Pressure:

5,000 psi

Media:

Chemical compatibility chart

Note: All parameters can vary depending on the specific application, please take the above information as a general guideline. Should you have any concerns please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it..

Hardware Design Guidelines & Part Numbers

Radial clearances: inch"

N/A

Please contact KC Seals for more info. This email address is being protected from spambots. You need JavaScript enabled to view it..

Surface finish: µinch

Roughness Depth Mating Surface Groove Surface
Rmax 40-160 <625
RzDin 25-100 <400
Ra 4-16 <63

 

bfr1

bfr2

Note: The sizes listed below are all standard profile dimensions, K.C. Seals can and does manufacturer to non-standard housing dimensions.

Style Part # A Groove Width B Rod Diameter D Housing Diameter
BFR-01 0.166 1.750 2.174
BFR-02 0.247 2.000 2.616
BFR-03 0.247 2.500 3.116
BFR-04 0.247 2.750 3.366
BFR-05 0.247 3.000 3.616
Style Part # A Groove Width B Rod Diameter D Housing Diameter
BFR-06 0.247 3.250 3.866
BFR-07 0.247 3.500 4.116
BFR-08 0.247 4.000 4.616
BFR-09 0.247 4.500 5.116
BFR-10 0.247 5.000 5.616