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 45 40 20 0.45 0.00000000000 Freudenberg 2299 Details
BFA 50 NBR 253 45 40 25 0.45 0.00000000000 Freudenberg 37548 Details
BFA 50 NBR 253 45 40 35 0.45 0.00000000000 Freudenberg 34361 Details
BFA 50 NBR 253 45 40 45 0.45 0.00000000000 Freudenberg 2313 Details
BFA 50 NBR 253 50 45 10 0.45 0.00000000000 Freudenberg 37137 Details
BFA 50 NBR 253 50 45 20 0.45 0.00000000000 Freudenberg 110975 Details
BFA 50 NBR 253 50 45 30 0.45 0.00000000000 Freudenberg 1610 Details
BFA 50 NBR 253 50 45 40 0.45 0.00000000000 Freudenberg 2365 Details
BFA 50 NBR 253 50 45 50 0.45 0.00000000000 Freudenberg 2383 Details
BFA 50 NBR 253 55 50 15 0.45 0.00000000000 Freudenberg 2414 Details
BFA 50 NBR 253 55 50 25 0.45 0.00000000000 Freudenberg 36178 Details
BFA 50 NBR 253 55 50 35 0.45 0.00000000000 Freudenberg 36456 Details
BFA 50 NBR 253 55 50 45 0.45 0.00000000000 Freudenberg 110513 Details
BFA 50 NBR 253 55 50 55 0.45 0.00000000000 Freudenberg 36018 Details
BFA 50 NBR 253 60 55 25 0.45 0.00000000000 Freudenberg 2437 Details
BFA 50 NBR 253 60 55 35 0.45 0.00000000000 Freudenberg 1639 Details
BFA 50 NBR 253 60 55 50 0.45 0.00000000000 Freudenberg 377743 Details
BFA 50 NBR 253 60 55 60 0.45 0.00000000000 Freudenberg 2444 Details
BFA 50 NBR 253 70 60 15 0.55 0.00000000000 Freudenberg 33042 Details
BFA 50 NBR 253 70 60 25 0.55 0.00000000000 Freudenberg 2452 Details