Explosion Isolation Flap Valve CARZ-N Ø315-1000mm

Explosion Isolation Flap Valve CARZ-N - protective system for combustible dust applications

Explosion Isolation Flap Valve type CARZ-N prevents a transmission of explosion pressure wave and flames front from the filter to your workplace. By using our CARZ-N Explosion Isolation Flap Valve, you reduce the risk from dust explosion for both people and equipment.

Function

During normal operation, the valve is kept open, and large opening angle ensure low pressure drop. In case of an explosion in the filter, the 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 from the filter to upstream work areas.

No matter what industry you are in or what type of dust is generated in your factory, we can provide the complete dust explosion protection solution of filters, and explosion isolation flap valves.

  • Independently tested to latest and most stringent standards and regulations
  • Compliant with international dust explosion protection codes (ATEX, NFPA69, IECEx)
  • Widest range of sizes, applications and filter system configurations on the market (e.g. approval for positive and negative pressure systems, approval for St2 dusts up to size 630 inclusive)
  • Manufactured fully by Nederman under certified quality assurance system, ensuring highest level of quality and reliability

Technical data
Certifications CE, EX
Material Welded carbon steel, painted RAL5009
Operating temperature range -20 - +70°C (0 - 160F)
Ambient temperature range -20 - +60°C (0 - 140F)
Max velocity in duct (m/s) 30
Minimum velocity in duct 0
Install type Push and Pull
    CARZ-N 450 Explosion Isolation Flap Valve FL, Ex D St2

    ArtNo: 73007816

    Diameter (mm)
    450
    Connection
    FL
    Weight (kg)
    175
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    0,9
    Dust type
    Metallic/Organic
    Kst (bar m/s)
    300
    CARZ-N 450 Explosion Isolation Flap Valve NW, Ex D St2

    ArtNo: 73007817

    Diameter (mm)
    450
    Connection
    NW
    Weight (kg)
    175
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    0,9
    Dust type
    Metallic/Organic
    Kst (bar m/s)
    300
    CARZ-N 500 Explosion Isolation Flap Valve FL, Ex D St2

    ArtNo: 73007839

    Diameter (mm)
    500
    Connection
    FL
    Weight (kg)
    200
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    1,6
    Dust type
    Organic
    Kst (bar m/s)
    300
    CARZ-N 500 Explosion Isolation Flap Valve NW, Ex D St2

    ArtNo: 73007840

    Diameter (mm)
    500
    Connection
    NW
    Weight (kg)
    200
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    1,6
    Dust type
    Organic
    Kst (bar m/s)
    300
    CARZ-N 560 Explosion Isolation Flap Valve FL, Ex D St2

    ArtNo: 73007845

    Diameter (mm)
    560
    Connection
    FL
    Weight (kg)
    224
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    1,6
    Dust type
    Organic
    Kst (bar m/s)
    300
    CARZ-N 560 Explosion Isolation Flap Valve NW, Ex D St2

    ArtNo: 73007846

    Diameter (mm)
    560
    Connection
    NW
    Weight (kg)
    224
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    1,6
    Dust type
    Organic
    Kst (bar m/s)
    300
    CARZ-N 630 Explosion Isolation Flap Valve FL, Ex D St2

    ArtNo: 73007851

    Diameter (mm)
    630
    Connection
    FL
    Weight (kg)
    260
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    1,6
    Dust type
    Organic
    Kst (bar m/s)
    300
    CARZ-N 630 Explosion Isolation Flap Valve NW, Ex D St2

    ArtNo: 73007852

    Diameter (mm)
    630
    Connection
    NW
    Weight (kg)
    260
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    1,6
    Dust type
    Organic
    Kst (bar m/s)
    300
    CARZ-N 710 Explosion Isolation Flap Valve FL, Ex D St1

    ArtNo: 73008055

    Diameter (mm)
    710
    Connection
    FL
    Explosion Class ATEX
    St1
    Dust Concentration in duct
    Any
    Minimum vessel size, push (m3)
    3,2
    Minimum vessel size, pull (m3)
    3,2
    Dust type
    Organic
    Kst (bar m/s)
    200
    CARZ-N 710 Explosion Isolation Flap Valve NW, Ex D St1

    ArtNo: 73008056

    Diameter (mm)
    710
    Connection
    NW
    Weight (kg)
    566
    Explosion Class ATEX
    St1
    Dust Concentration in duct
    Any
    Minimum vessel size, push (m3)
    3,2
    Minimum vessel size, pull (m3)
    3,2
    Dust type
    Organic
    Kst (bar m/s)
    200
    CARZ-N 800 Explosion Isolation Flap Valve FL, Ex D St1

    ArtNo: 73008058

    Diameter (mm)
    800
    Connection
    FL
    Weight (kg)
    431
    Explosion Class ATEX
    St1
    Dust Concentration in duct
    Any
    Minimum vessel size, push (m3)
    3,2
    Minimum vessel size, pull (m3)
    3,2
    Dust type
    Organic
    Kst (bar m/s)
    200
    CARZ-N 800 Explosion Isolation Flap Valve NW, Ex D St1

    ArtNo: 73008059

    Diameter (mm)
    800
    Connection
    NW
    Weight (kg)
    431
    Explosion Class ATEX
    St1
    Dust Concentration in duct
    Any
    Minimum vessel size, push (m3)
    3,2
    Minimum vessel size, pull (m3)
    3,2
    Dust type
    Organic
    Kst (bar m/s)
    200
    CARZ-N 900 Explosion Isolation Flap Valve FL, Ex D St1

    ArtNo: 73008060

    Diameter (mm)
    900
    Connection
    FL
    Weight (kg)
    490
    Explosion Class ATEX
    St1
    Dust Concentration in duct
    Any
    Minimum vessel size, push (m3)
    3,2
    Minimum vessel size, pull (m3)
    3,2
    Dust type
    Organic
    Kst (bar m/s)
    200
    CARZ-N 900 Explosion Isolation Flap Valve NW, Ex D St1

    ArtNo: 73008061

    Diameter (mm)
    900
    Connection
    NW
    Weight (kg)
    490
    Explosion Class ATEX
    St1
    Dust Concentration in duct
    Any
    Minimum vessel size, push (m3)
    3,2
    Minimum vessel size, pull (m3)
    3,2
    Dust type
    Organic
    Kst (bar m/s)
    200
    CARZ-N 1000 Explosion Isolation Flap Valve FL, Ex D St1

    ArtNo: 73008062

    Diameter (mm)
    1000
    Connection
    FL
    Weight (kg)
    566
    Explosion Class ATEX
    St1
    Dust Concentration in duct
    Any
    Minimum vessel size, push (m3)
    3,2
    Minimum vessel size, pull (m3)
    3,2
    Dust type
    Organic
    Kst (bar m/s)
    200
    CARZ-N 1000 Explosion Isolation Flap Valve NW, Ex D St1

    ArtNo: 73008063

    Diameter (mm)
    1000
    Connection
    NW
    Weight (kg)
    566
    Explosion Class ATEX
    St1
    Dust Concentration in duct
    Any
    Minimum vessel size, push (m3)
    3,2
    Minimum vessel size, pull (m3)
    3,2
    Dust type
    Organic
    Kst (bar m/s)
    200
    CARZ-N 315 Explosion Isolation Flap Valve FL, Ex D St2

    ArtNo: 73008407

    Diameter (mm)
    315
    Connection
    FL
    Explosion Class ATEX
    St2
    Dust Concentration in duct
    Any
    Minimum vessel size, push (m3)
    0,46
    Minimum vessel size, pull (m3)
    0,46
    Dust type
    Metallic/Organic
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,5
    CARZ-N 350 Explosion Isolation Flap Valve FL, Ex D St2

    ArtNo: 73008409

    Diameter (mm)
    350
    Connection
    FL
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    0,9
    Dust type
    Metallic/Organic
    Kst (bar m/s)
    300
    CARZ-N 400 Explosion Isolation Flap Valve FL, Ex D St2

    ArtNo: 73008411

    Diameter (mm)
    400
    Connection
    FL
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    0,9
    Dust type
    Metallic/Organic
    Kst (bar m/s)
    300
    CARZ-N 315 Explosion Isolation Flap Valve QF, Ex D St2

    ArtNo: 73008413

    Diameter (mm)
    315
    Connection
    QF
    Explosion Class ATEX
    St2
    Dust Concentration in duct
    Any
    Minimum vessel size, push (m3)
    0,46
    Minimum vessel size, pull (m3)
    0,46
    Dust type
    Metallic/Organic
    Kst (bar m/s)
    300
    Maximum reduced pressurem, Pred (bar)
    0,5
    CARZ-N 350 Explosion Isolation Flap Valve QF, Ex D St2

    ArtNo: 73008414

    Diameter (mm)
    350
    Connection
    QF
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    0,9
    Dust type
    Metallic/Organic
    Kst (bar m/s)
    300
    CARZ-N 400 Explosion Isolation Flap Valve QF, Ex D St2

    ArtNo: 73008415

    Diameter (mm)
    400
    Connection
    QF
    Note
    LEL = Lower Explosion Limit = MEC Minimum Explosion Concentration
    Explosion Class ATEX
    St2
    Minimum vessel size, push (m3)
    1,6
    Minimum vessel size, pull (m3)
    0,9
    Dust type
    Metallic/Organic
    Kst (bar m/s)
    300

Accessories for this product 20

CARZ support frame suspended 160
ArtNo: 73001558

CARZ support frame suspended 160

CARZ support frame suspended 180
ArtNo: 73001559

CARZ support frame suspended 180

CARZ support frame suspended 200
ArtNo: 73001560

CARZ support frame suspended 200

CARZ support frame suspended 315
ArtNo: 73001562

CARZ support frame suspended 315

CARZ support frame suspended 500
ArtNo: 73001566

CARZ support frame suspended 500

CARZ support frame suspended 710
ArtNo: 73001569

CARZ support frame suspended 710

Carz support frame suspended 900
ArtNo: 73001571

Carz support frame suspended 900

CARZ support frame suspended 1000
ArtNo: 73001572

CARZ support frame suspended 1000

CARZ support frame wall-hanging 160
ArtNo: 73001573

CARZ support frame wall-hanging 160

CARZ support frame wall-hanging 180
ArtNo: 73001574

CARZ support frame wall-hanging 180

CARZ support frame wall-hanging 200
ArtNo: 73001575

CARZ support frame wall-hanging 200

CARZ support frame wall-hanging 250
ArtNo: 73001576

CARZ support frame wall-hanging 250

CARZ support frame wall-hanging 315
ArtNo: 73001577

CARZ support frame wall-hanging 315

CARZ support frame wall-hanging 350
ArtNo: 73001578

CARZ support frame wall-hanging 350

CARZ support frame wall-hanging 400
ArtNo: 73001579

CARZ support frame wall-hanging 400

CARZ support frame wall-hanging 450
ArtNo: 73001580

CARZ support frame wall-hanging 450

CARZ support frame wall-hanging 500
ArtNo: 73001581

CARZ support frame wall-hanging 500

CARZ support frame wall-hanging 560
ArtNo: 73001582

CARZ support frame wall-hanging 560

CARZ support frame wall-hanging 900
ArtNo: 73001586

CARZ support frame wall-hanging 900

CARZ support frame wall-hanging 1000
ArtNo: 73001587

CARZ support frame wall-hanging 1000