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B-Flap I - Explosion isolation flap valve

Explosion isolation flap valve B-FLAP I is a mechanical device designed to prevent the transfer of flame and pressure between technologies during an explosion. During normal operation, the explosion isolation flap valve is kept open using the RPD (Reducer of Pressure Drop) mechanism. This solution significantly reduces pressure losses in the piping system, or due to airflow in the pipeline. During the explosion, the protected pipe will be closed and locked. Together with other safety elements, our flap valve forms an effective system for the protection of technological units. Most often, B-FLAP I is used in combination with an explosion venting device - VMP or FLEX. The explosion isolation flap valve is suitable for pipes with a diameter from DN 100 to DN 800. Explosion isolation flap valve B-FLAP I is certified according to EN 16447 standard.

If you use pneumatic conveying, vertical piping with a diameter of less than DN 100 in your technology, or you have technology designed for maximum explosion pressure or shorter installation distances, see GatEx.

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WHERE IS THE RISK?

In piping systems, during material conveying between individual parts of the production technology, initiation source (e.g. hot surface, friction, a spark from equipment failure, etc.) can be easily formed, which in combination with the flowing air and the transported material creates an explosive mixture. The pressure wave and the flame bursting through the piping system can explode and thus destroy the connected technologies or endanger personnel within a close range.

ADVANTAGES

  • wide range of sizes from DN 100 - DN 800
  • mechanical equipment without the need for electrical energy and a control unit
  • low pressure losses
  • high pressure resistance
  • possibility of equipping with a position indicator and/or signaling the pollution of the flap seating surface
  • easy installation, inspection, and maintenance
  • mechanical locking system when closing the flap
  • suitable for technologies working with light metal dust
  • equipped with a special mechanism RPD (Reducer of Pressure Drop)
  • installation possible in a piping system consisting of elbows and/or obstacles

PREVENTION OF EXPLOSION propagation BETWEEN

  • filters
  • bins
  • mills
  • crushers
  • separators
  • cyclones
  • and other equipment where there is a risk of transmission of a dust explosion

Application of THE B-FLAP I IN COMBINATION WITH THE EXPLOSION VENTING DEVICE VMP

B-Flap I with Vent PRO RSBP

application of the B-FLAP I WITH EQUIPMENT FOR FLAMELESS EXPLOSION VENTING DEVICE FLEX

B-Flap I with Flex RSBP

application of the B-FLAP I IN COMBINATION WITH HRD SYSTEM FOR EXPLOSION SUPPRESSION

B-Flap I with HRD system RSBP

Food industry - malthouse

Malthouses are an integral part of the food industry. This following case study will show you all risk areas, including the selection of the most suitable explosion protection designed by RSBP.

Malthouse protection RSBP

 

References from installations

B-Flap I before filtration unit B-Flap I on entry pipe to the filter B-Flap I Explosion isolation flap vale Explosion isolation flap valve Flap valve on ducting

TECHNICAL PARAMETERS 

 Type ØA
(mm)		 ØB
(mm)		 ØC
(mm)		 L
(mm)		 N
(mm)		 P
(mm)		 Weight (kg) Dust explosion class Installation distance
min - max (m)
 DN 125 177 157 125 305 308 269 11 St1, St2 3 - 7
 DN 150 202 182 150 330 337 294 13 St1, St2 3 - 7
 DN 200 253 233 200 390 387 344 18 St1, St2 3 - 7
 DN 250 303 283 250 510 502 417 40 St1, St2 4 - 7
 DN 300 363 337 300 580 552 467 50 St1, St2 4 - 7
 DN 315 378 352 315 600 567 482 53 St1, St2 4 - 7
 DN 355 418 392 355 630 607 522 61 St1, St2 4 - 7
 DN 400 464 438 400 695 652 568 77 St1, St2 4 - 7
 DN 450 514 488 450 750 702 619 88 St1 4 - 7
 DN 500 564 538 500 800 752 669 101 St1 4 - 7
 DN 560 664 629 560 930 838 745 157 St1 4 - 7
 DN 630 734 698 630 1005 908 815 180 St1 4 - 7
 DN 710 814 775 710 1156 1103 962 305 St1 3 - 7
 DN 800 904 861 800 1246 1193 1052 351 St1 3 - 7

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Customer data
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Product (dust) specification

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Maximum size of one file is 5 MB.
Maximum count of uploaded files is 10.

Equipment specification

Maximum size of one file is 5 MB.
Maximum count of uploaded files is 10.

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