BFA | LONG-STROKE ROLLING DIAPHRAGMS BFA

Back to overview Diaphragm

PRODUCT DESCRIPTION

Long-stroke rolling diaphragms are thin-walled, special sensitive diaphragms made from highly elastic materials with fabric reinforcement. Along with this standard design type BFA, the long-stroke rolling diaphragms can also be supplied made in special tools without fabric, type BFAO.

PRODUCT ADVANTAGES

The small diaphragm thickness and large height of the diaphragm relative to the diameter provide the following advantages:

  • Low, almost constant resistance to movement over the entire stroke
  • Considerably greater stroke lengths in comparison to conventional diaphragms with the same diameter
  • Effective area remains the same over entire stroke
  • No additional resistance to movement on starting or on change in direction of movement; no notch point in operating range
  • Low requirements on piston and cylinder in comparison to lip seals.

Select your filter

polymer
NBR
material
50 NBR 253
brand
Freudenberg
design
BFA

Filtered items for BFA ( 94 hits )

design material Dg Dk H W central hole diameter brand item no. SP | IP    
BFA 50 NBR 253 415 400 80 1 0.00000000000 Freudenberg 37193 Details
BFA 50 NBR 253 320 310 120 1 0.00000000000 Freudenberg 39645 Details
BFA 50 NBR 253 320 310 90 1 0.00000000000 Freudenberg 32278 Details
BFA 50 NBR 253 260 250 50 1 0.00000000000 Freudenberg 34921 Details
BFA 50 NBR 253 250 240 120 1 0.00000000000 Freudenberg 2016 Details
BFA 50 NBR 253 250 240 70 1 0.00000000000 Freudenberg 34908 Details
BFA 50 NBR 253 220 210 80 1 0.00000000000 Freudenberg 160756 Details
BFA 50 NBR 253 200 190 120 1 0.00000000000 Freudenberg 35695 Details
BFA 50 NBR 253 200 190 90 1 0.00000000000 Freudenberg 35905 Details
BFA 50 NBR 253 200 190 60 1 0.00000000000 Freudenberg 35906 Details
BFA 50 NBR 253 200 190 30 1 0.00000000000 Freudenberg 406704 Details
BFA 50 NBR 253 180 170 120 1 0.00000000000 Freudenberg 384024 Details
BFA 50 NBR 253 180 170 90 1 0.00000000000 Freudenberg 2001 Details
BFA 50 NBR 253 180 170 60 1 0.00000000000 Freudenberg 2000 Details
BFA 50 NBR 253 180 170 30 1 0.00000000000 Freudenberg 401089 Details
BFA 50 NBR 253 165 155 70 1 0.00000000000 Freudenberg 1976 Details
BFA 50 NBR 253 150 140 150 0.8 0.00000000000 Freudenberg 1963 Details
BFA 50 NBR 253 150 140 120 0.8 0.00000000000 Freudenberg 37013 Details
BFA 50 NBR 253 150 140 90 0.8 0.00000000000 Freudenberg 160753 Details
BFA 50 NBR 253 150 140 60 0.8 0.00000000000 Freudenberg 36455 Details