BFA | LONG-STROKE ROLLING DIAPHRAGMS BFA

Back to overview Diaphragm
Cross section sketch Diaphragm Installation sketch Diaphragm Product Data Sheet

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.

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polymer
NBR
brand
Freudenberg
design
BFA

Filtered items for BFA ( 94 hits )

Page 1 / 5 previous items next items
design material Dg Dk H W central hole diameter brand item no. SP | IP    
BFA 50 NBR 253 16 12 13 0.45 0.00000000000 Freudenberg 2227 Details
BFA 50 NBR 253 20 15 20 0.45 0.00000000000 Freudenberg 35842 Details
BFA 50 NBR 253 25 20 10 0.45 0.00000000000 Freudenberg 23898 Details
BFA 50 NBR 253 25 20 15 0.45 0.00000000000 Freudenberg 34050 Details
BFA 50 NBR 253 25 20 20 0.45 0.00000000000 Freudenberg 457 Details
BFA 50 NBR 253 25 20 25 0.45 0.00000000000 Freudenberg 33921 Details
BFA 50 NBR 253 30 25 10 0.45 0.00000000000 Freudenberg 530043 Details
BFA 50 NBR 253 30 25 18 0.45 0.00000000000 Freudenberg 110820 Details
BFA 50 NBR 253 30 25 25 0.45 0.00000000000 Freudenberg 37944 Details
BFA 50 NBR 253 30 25 30 0.45 0.00000000000 Freudenberg 35794 Details
BFA 50 NBR 253 33 28 27 0.45 0.00000000000 Freudenberg 426243 Details
BFA 50 NBR 253 35 30 10 0.45 0.00000000000 Freudenberg 37112 Details
BFA 50 NBR 253 35 30 22 0.45 0.00000000000 Freudenberg 35960 Details
BFA 50 NBR 253 35 30 28 0.45 0.00000000000 Freudenberg 35805 Details
BFA 50 NBR 253 35 30 35 0.45 0.00000000000 Freudenberg 34445 Details
BFA 50 NBR 253 40 35 18 0.45 0.00000000000 Freudenberg 2294 Details
BFA 50 NBR 253 40 35 25 0.45 0.00000000000 Freudenberg 96543 Details
BFA 50 NBR 253 40 35 35 0.45 0.00000000000 Freudenberg 35851 Details
BFA 50 NBR 253 40 35 40 0.45 0.00000000000 Freudenberg 35845 Details
BFA 50 NBR 253 45 40 10 0.45 0.00000000000 Freudenberg 35946 Details