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
brand
Freudenberg
design
BFA

Filtered items for Diaphragm BFA ( 12 hits )

design material Dg Dk H W central hole diameter brand legacy item no. item no. SP | IP    
Diaphragm BFA 50 NBR 253 25 20 20 0.45 0.00000000000 Freudenberg 457 Details

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Diaphragm BFA 50 NBR 253 35 30 22 0.45 0.00000000000 Freudenberg 5109004617600 35960 Details

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Diaphragm BFA 50 NBR 253 45 40 20 0.45 0.00000000000 Freudenberg 229900 2299 Details

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Diaphragm BFA 50 NBR 253 45 40 45 0.45 0.00000000000 Freudenberg 231300 2313 Details

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Diaphragm BFA 50 NBR 253 50 45 30 0.45 0.00000000000 Freudenberg 1610 Details

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Diaphragm BFA 50 NBR 253 60 55 25 0.45 0.00000000000 Freudenberg 5109004617800 2437 Details

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Diaphragm BFA 50 NBR 253 70 60 55 0.55 0.00000000000 Freudenberg 110779 Details

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Diaphragm BFA 50 NBR 253 80 70 30 0.55 0.00000000000 Freudenberg 9459812 94598 Details

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Diaphragm BFA 50 NBR 253 90 80 70 0.55 0.00000000000 Freudenberg 38186 Details

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Diaphragm BFA 50 NBR 253 100 90 40 0.55 0.00000000000 Freudenberg 1661 Details

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Diaphragm BFA 50 NBR 253 120 110 25 0.8 0.00000000000 Freudenberg 36127 Details

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Diaphragm BFA 50 NBR 253 150 140 120 0.8 0.00000000000 Freudenberg 3701373 37013 Details

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