Nederman

B-Flap I-Explosion Isolation Flap Valve

B-Flap I-Explosion Isolation Flap Valve

Explosion Isolation Flap Valve B-Flap I - protective system.

Flow-Actuated Flap Valve type B-Flap I is designed as explosion pressure resistance equipment, which is able to
prevent a transmission of dangerous effects of explosion pressure wave and flames front to upstream areas. Product
has been designed in accordance with European Directive 2014/34/EU and certified by EN 16447 and EN 15089.

B-Flap I can be used in PULL acc. EN 16447 and PULL /PUSH or Reverse flow applications acc. EN 15089.

Description:
Welded construction in RAL 3000 painted carbon steel. Stainless steel without a surface finish only on special request.

Function:
In case of an explosion in the downstream equipment (e.g. dust collector) a pressure wave will force to close the Flap plate and lock in position. When Flap plate is closed it makes an effective barrier against approaching flame front. This prevent the explosion from being transmitted to upstream work areas.

  • Inside valve, zones 20 or 2
  • Outside valve, zone 21,22, no zone

Caractéristiques techniques
Certifications CE, EX
Matériel Painted carbon steel
Operating temperature range -40°C to 80°C
Ambient temperature range -40°C to 80°C (-20°C to 60°C for versionswith electrical accessories)
Dust Concentration in duct 500 g/m3
Max velocity in duct (m/s) 35
Minimum velocity in duct 0
Install type Pull

Modèles31

    B-Flap I K-ZKL-100-ST1 Explosion Isolation Flap Valve

    ArtNo: 73007996

    Diamètre (mm)
    100
    Poids (kg)
    9
    Min vessel size (m3)
    0,46
    Note
    B-FLAP I, sizes 100-400, St1 marked, may be used on light metal dust (aluminum, etc..)
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-125-ST1 Explosion Isolation Flap Valve

    ArtNo: 73007998

    Diamètre (mm)
    125
    Explosion Class ATEX
    St1
    Kst (bar m/s)
    200
    Min vessel size (m3)
    0,46
    Minimum vessel size, pull (m3)
    0,46
    Maximum reduced pressurem, Pred (bar)
    0,6
    Note
    B-FLAP I, sizes 100-400, St1 marked, may be used on light metal dust (aluminum, etc..)
    Poids (kg)
    11
    B-Flap I K-ZKL-150-ST1 Explosion Isolation Flap Valve

    ArtNo: 73008000

    Diamètre (mm)
    150
    Poids (kg)
    13
    Min vessel size (m3)
    0,46
    Note
    B-FLAP I, sizes 100-400, St1 marked, may be used on light metal dust (aluminum, etc..)
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-200-ST1 Explosion Isolation Flap Valve

    ArtNo: 73008002

    Diamètre (mm)
    200
    Poids (kg)
    18
    Min vessel size (m3)
    0,46
    Note
    B-FLAP I, sizes 100-400, St1 marked, may be used on light metal dust (aluminum, etc..)
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-250-ST1 Explosion Isolation Flap Valve

    ArtNo: 73008004

    Diamètre (mm)
    250
    Poids (kg)
    40
    Min vessel size (m3)
    0,9
    Note
    B-FLAP I, sizes 100-400, St1 marked, may be used on light metal dust (aluminum, etc..)
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-300-ST1 Explosion Isolation Flap Valve

    ArtNo: 73008006

    Diamètre (mm)
    300
    Poids (kg)
    50
    Min vessel size (m3)
    0,9
    Note
    B-FLAP I, sizes 100-400, St1 marked, may be used on light metal dust (aluminum, etc..)
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-315-ST1 Explosion Isolation Flap Valve

    ArtNo: 73008008

    Diamètre (mm)
    315
    Poids (kg)
    53
    Min vessel size (m3)
    0,9
    Note
    B-FLAP I, sizes 100-400, St1 marked, may be used on light metal dust (aluminum, etc..)
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-355-ST1 Explosion Isolation Flap Valve

    ArtNo: 73008010

    Diamètre (mm)
    355
    Poids (kg)
    61
    Min vessel size (m3)
    0,9
    Note
    B-FLAP I, sizes 100-400, St1 marked, may be used on light metal dust (aluminum, etc..)
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-400-ST1 Explosion Isolation Flap Valve

    ArtNo: 73008012

    Diamètre (mm)
    400
    Poids (kg)
    77
    Min vessel size (m3)
    0,9
    Note
    B-FLAP I, sizes 100-400, St1 marked, may be used on light metal dust (aluminum, etc..)
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-100-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008021

    Diamètre (mm)
    100
    Poids (kg)
    9
    Min vessel size (m3)
    0,46
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-100-N-ST2 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008022

    Diamètre (mm)
    100
    Poids (kg)
    9
    Min vessel size (m3)
    0,46
    Note
    Stainless Steel
    Explosion Class ATEX
    St2
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-125-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008023

    Diamètre (mm)
    125
    Poids (kg)
    11
    Min vessel size (m3)
    0,46
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-125-N-ST2 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008024

    Diamètre (mm)
    125
    Poids (kg)
    11
    Min vessel size (m3)
    0,46
    Note
    Stainless Steel
    Explosion Class ATEX
    St2
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-150-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008025

    Diamètre (mm)
    150
    Poids (kg)
    13
    Min vessel size (m3)
    0,46
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-150-N-ST2 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008026

    Diamètre (mm)
    150
    Poids (kg)
    13
    Min vessel size (m3)
    0,46
    Note
    Stainless Steel
    Explosion Class ATEX
    St2
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-200-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008027

    Diamètre (mm)
    200
    Poids (kg)
    18
    Min vessel size (m3)
    0,46
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-200-N-ST2 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008028

    Diamètre (mm)
    200
    Poids (kg)
    18
    Min vessel size (m3)
    0,46
    Note
    Stainless Steel
    Explosion Class ATEX
    St2
    Minimum vessel size, pull (m3)
    0,46
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,6
    B-Flap I K-ZKL-250-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008029

    Diamètre (mm)
    250
    Poids (kg)
    40
    Min vessel size (m3)
    0,9
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-250-N-ST2 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008030

    Diamètre (mm)
    250
    Poids (kg)
    40
    Min vessel size (m3)
    0,9
    Note
    Stainless Steel
    Explosion Class ATEX
    St2
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,35
    B-Flap I K-ZKL-300-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008031

    Diamètre (mm)
    300
    Poids (kg)
    50
    Min vessel size (m3)
    0,9
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-300-N-ST2 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008032

    Diamètre (mm)
    300
    Poids (kg)
    50
    Min vessel size (m3)
    0,9
    Note
    Stainless Steel
    Explosion Class ATEX
    St2
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,35
    B-Flap I K-ZKL-315-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008033

    Diamètre (mm)
    315
    Poids (kg)
    53
    Min vessel size (m3)
    0,9
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-315-N-ST2 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008034

    Diamètre (mm)
    315
    Poids (kg)
    53
    Min vessel size (m3)
    0,9
    Note
    Stainless Steel
    Explosion Class ATEX
    St2
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,35
    B-Flap I K-ZKL-355-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008035

    Diamètre (mm)
    355
    Poids (kg)
    61
    Min vessel size (m3)
    0,9
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-355-N-ST2 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008036

    Diamètre (mm)
    355
    Poids (kg)
    61
    Min vessel size (m3)
    0,9
    Note
    Stainless Steel
    Explosion Class ATEX
    St2
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,35
    B-Flap I K-ZKL-400-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008037

    Diamètre (mm)
    400
    Poids (kg)
    77
    Min vessel size (m3)
    0,9
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-400-N-ST2 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008038

    Diamètre (mm)
    400
    Poids (kg)
    77
    Min vessel size (m3)
    0,9
    Note
    Stainless Steel
    Explosion Class ATEX
    St2
    Minimum vessel size, pull (m3)
    0,9
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,35
    B-Flap I K-ZKL-450-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008039

    Diamètre (mm)
    450
    Poids (kg)
    88
    Min vessel size (m3)
    1,6
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    1,6
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,35
    B-Flap I K-ZKL-500-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008040

    Diamètre (mm)
    500
    Poids (kg)
    101
    Min vessel size (m3)
    1,6
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    1,6
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,35
    B-Flap I K-ZKL-560-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008041

    Diamètre (mm)
    560
    Poids (kg)
    157
    Min vessel size (m3)
    6
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    6
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45
    B-Flap I K-ZKL-630-N-ST1 Explosion Isolation Flap Valve AISI 304

    ArtNo: 73008042

    Diamètre (mm)
    630
    Poids (kg)
    180
    Min vessel size (m3)
    6
    Note
    Stainless Steel
    Explosion Class ATEX
    St1
    Minimum vessel size, pull (m3)
    6
    Kst (bar m/s)
    200
    Maximum reduced pressurem, Pred (bar)
    0,45

Accessoires pour ce produit 3

Position sensor ATEX version (zone 21, 22, no zone)
ArtNo: 73002043

B-Flap locking sensor kit (sensor NE5 + relay Type 917 + J box)

Position sensor standard version (no zone)
ArtNo: 73002168

B-Flap locking sensor kit (sensor 24VDC + cable 20m)

Position and Dirt sensors ATEX version (zone 21, 22, no zone)
ArtNo: 73008049

B-Flap position and dirt sensors kit (sensor NE5 + sensor CCB10 + relay Type 917 + J box)