BFA Diaphragms
BFA Diaphragms

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BFA Diaphragms
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BFA Diaphragms

BFA Diaphragms

The BFA diaphragm of is made of many different materials and is used in a variety of applications, such as pumps, actuators, hydraulic accumulators, valves or controllers. Their tasks include controlling, pumping or separating media. Freudenberg Sealing Technologies offers the right diaphragm for every type of cylinder and application - in both standard and custom sizes and formats.

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31 - 60 of 210 results

Item no. Piston diameter (Dk) Cylinder diameter (D9) Height (H) shore hardness Material Design Thickness (s) Stock Price
Diaphragm - BFA - 70 FKM 576 - Freudenberg - 49023125
49023125 270 285 65 70 Shore A 70 FKM 576 BFA ?
On request
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 49021998
49021998 25 30 25 50 Shore A 50 NBR 253 BFA ?
On request
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Diaphragm - BFA - 58 VMQ 518 - Freudenberg - 161386
161386 310 320 120 58 Shore A 58 VMQ 518 BFA ?
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Diaphragm - BFA - 70 FKM 576 - Freudenberg - 453885
453885 30 35 28 70 Shore A 70 FKM 576 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 49021999
49021999 35 40 18 50 Shore A 50 NBR 253 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 49324327
49324327 35 40 18 50 Shore A 50 NBR 253 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 523946
523946 35 40 40 50 Shore A 50 NBR 253 BFA ?
On request
Details Quotation
Diaphragm - BFA - 58 VMQ 518 - Freudenberg - 378438
378438 40 45 20 58 Shore A 58 VMQ 518 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 407524
407524 40 45 25 50 Shore A 50 NBR 253 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 523944
523944 40 45 45 50 Shore A 50 NBR 253 BFA ?
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Diaphragm - BFA - 50 VMQ 570 - Freudenberg - 157786
157786 45 50 10 50 Shore A 50 VMQ 570 BFA ?
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Diaphragm - BFA - 50 VMQ 570 - Freudenberg - 365328
365328 45 50 20 50 Shore A 50 VMQ 570 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 532542
532542 45 50 30 50 Shore A 50 NBR 253 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 49004193
49004193 45 50 50 50 Shore A 50 NBR 253 BFA ?
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Diaphragm - BFA - 60 EPDM 266 - Freudenberg - 95907
95907 50 55 25 60 Shore A 60 EPDM 266 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 49022012
49022012 50 55 35 50 Shore A 50 NBR 253 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 49022013
49022013 60 70 40 50 Shore A 50 NBR 253 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 523943
523943 60 70 55 50 Shore A 50 NBR 253 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 523945
523945 60 70 70 50 Shore A 50 NBR 253 BFA ?
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Diaphragm - BFA - 50 VMQ 570 - Freudenberg - 148611
148611 70 80 30 50 Shore A 50 VMQ 570 BFA ?
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Diaphragm - BFA - 58 VMQ 518 - Freudenberg - 130147
130147 70 80 30 58 Shore A 58 VMQ 518 BFA ?
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Diaphragm - BFA - 58 VMQ 518 - Freudenberg - 157388
157388 70 80 30 58 Shore A 58 VMQ 518 BFA ?
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Diaphragm - BFA - 60 EPDM 280 - Freudenberg - 49022046
49022046 80 90 25 60 Shore A 60 EPDM 280 BFA ?
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Diaphragm - BFA - 60 EPDM 290 - Freudenberg - 49319040
49319040 80 90 35 60 Shore A 60 EPDM 290 BFA ?
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Diaphragm - BFA - 60 VMQ 571 - Freudenberg - 378274
378274 80 90 55 60 Shore A 60 VMQ 571 BFA ?
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Diaphragm - BFA - 50 NBR 253 - Freudenberg - 421780
421780 80 90 55 50 Shore A 50 NBR 253 BFA ?
On request
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Diaphragm - BFA - 60 EPDM 266 - Freudenberg - 350628
350628 80 90 55 60 Shore A 60 EPDM 266 BFA ?
On request
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Diaphragm - BFA - 45 EPDM 130224 - Freudenberg - 49331433
49331433 120 130 130 45 Shore A 45 EPDM 130224 BFA ?
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Diaphragm - BFA - 50 NBR 167529 - Freudenberg - 49042279
49042279 170 180 60 50 Shore A 50 NBR 167529 BFA ?
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Diaphragm - BFA - 70 HNBR 150531 - Freudenberg - 49426420
49426420 190 200 120 70 Shore A 70 HNBR 150531 BFA ?
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BFA Diaphragms: Precision in Motion

Experience unparalleled precision and efficiency with BFA Diaphragms' revolutionary long-stroke rolling diaphragms. Crafted from highly elastic fabric-reinforced materials, these diaphragms are designed to excel in applications requiring delicate yet robust protection. The unique BFA Diaphragms lineup includes the standard type BFA and the fabric-free type BFAO, catering to specialized needs.

Unveiling Advantages: Long-Stroke Excellence

BFA Diaphragms redefine diaphragm technology with their slender build and remarkable height-to-diameter ratio. The benefits are manifold: experience low, consistent resistance across the stroke, enabling significantly extended lengths compared to traditional counterparts. Enjoy uniform effective areas throughout the motion, eliminating resistance during initiation or changes in movement. Ideal for hydraulic and pneumatic control systems, pressure measurement, and display equipment, these diaphragms outperform lip seals while minimizing demands on pistons and cylinders.

Applications Across Industries: Precision Perfected

BFA Diaphragms find their niche in applications demanding precision, reliability, and extended stroke capabilities. From hydraulic and pneumatic control equipment to pressure switches and transducers, their superior performance is unmatched. The specialized 'no-dust' design makes them particularly effective in low-pressure environments, safeguarding machinery from contaminants. The integration of BFA Diaphragms ensures optimal performance, while their construction eliminates concerns about dust infiltration.

Effortless Installation: Precision in Practice

Unlock the full potential of BFA Diaphragms with meticulous installation. When assembling long-stroke fabric-coated roller diaphragms, place the fabric on the depressurized side. Reverse the diaphragm before fitting, ensuring the rolling convolution is correctly oriented. For optimal results, employing a mounting sleeve is recommended to prevent unintended damages. Alternatively, position an inverted rolling diaphragm on the piston, insert the heel into the groove, and push the piston into the cylinder to form the rolling winding without skewed convolutions. Incorporate a stroke limitation to ensure peak performance.

In conclusion, BFA Diaphragms introduce a new era of precision and reliability in long-stroke rolling diaphragms. With their innovative design, extended stroke lengths, and uniform resistance, they redefine efficiency in hydraulic and pneumatic systems. Meticulous assembly guarantees optimal performance, establishing them as the ultimate choice for industries that demand precision, longevity, and unmatched performance.