Multi-Layered Explosion Vent – Flat (VNT-XSF) (VNT-XRF)

Multi-Layered Explosion Vent – Flat (VNT-XSF) (VNT-XRF)

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Multi-Layered Explosion Vent - Flat

Robust flat explosion venting panel for excellent service life

Dusty conditions commonly associated with the storage and handling of grains and powders can potentially lead to dangerous explosions. Elfab’s multi-layered bursting panel range combined stainless steel and fluropolymer to create a high performance explosion venting solution. Elfab is unique in having its explosion vents approved as a “protective System” II GD (when used with an Elfab approved Frame).

To meet the relief area requirements of a wide variety of applications, Elfab offers its flat Multi-layered Explosion Vents in a square, rectangular, round or trapezoid construction with a wide range of bolt pattern configurations. This unique range of explosion venting panels are of non-fragmenting design and are available in a selection of sizes. The Multi-layered explosion vent range is suitable for high temperature applications with a standard burst pressure offering of 0.05 or 0.1 BarG @15/30°C with a 25% tolerance.

Offering a low maintenance solution with a dust tight seal and excellent corrosion resistance, this flat non-fragmenting design is now a widely-used explosion protection solution for limited vacuum applications.

Custom manufactured using outstanding in-house processes to meet your requirements

Elfab’s outstanding in-house manufacturing capabilities and unique process efficiency is enhanced by its state-of-the-art machinery, including a 5-axis laser cutter and extensive testing facilities.

The expanding range of competitively priced, certified opening explosion vents combines Elfab’s distinctive design and manufacturing process with the ability to customise a solution to suit your specific requirements.

Optional integral burst detection for immediate shut-down

Elfab’s flat Multi-layered Explosion Panels are available with the optional benefit of an integral burst detection system for instantaneous notification when panel has burst.

 

Elfab’s unique ATEX-approved burst detection system, Vent-Tel, was specifically designed for its range of explosion venting panels to further ensure onsite safety for its customers. Vent-Tel is a non-invasive, fail safe, burst detection system providing an excellent solution for identifying when an explosion panel has functioned under harsh operating conditions.

Operating on a simple reed switch and magnet technology, Vent-Tel is designed to offer a practical solution for explosion vent burst detection. The magnet is pulled away from the sensor in the event of a panel burst, giving an open circuit signal. It signals a burst within the installation and in turn, can trigger an immediate shut-down of the process.

When connected to an intrinsically safe circuit this ExII 1GD EEx ia IIC detection device ensures a safe and compliant plat that fulfils the demanding regulatory developments within the bulk handling industry. An EC-Type Examination Certificate ITS03 ATEX 11359 is available.

Existing explosion venting panel installations without a burst detection system can be retrofitted with Vent-Tel.

  • Suitable for high temperatures
  • Fail-Safe rapid full venting
  • Low installation costs
  • Maintenance free
  • Non-fragmenting design
  • High temperature capability
  • Excellent corrosion resistance
  • Dust tight seal

 

The Multi-layered Flat Explosion Vent is available in a variety of sizes, burst pressures and temperature ranges to suit your specific requirements.

For full list of sizes and specifications, see Product Downloads.

Contact Elfab about this product
Size Range See Product Download
Vent Area 0.02 m2 to 1.25 m2 (0.22 ft2 to 13.46 ft2)
Temperature Range -40°C/200°C*
Operating Ratio 60%
Tolerance +/-25%
Burst Pressure Range 0.05barg to 0.49barg
Standard Burst Pressure Offering 0.05barg to 0.1barg @ 15/30°C
Level of vacuum capability Limited
Torque Dependent (Y/N) N
Vent-Tel Detection Optional
Optional Accessories Frame, Gasket
Shape Designs Rectangular, Square, Round, Trapezoid
Materials Stainless Steel as standard

*Higher temperatures available on request

 

Multi-Layered Flat Sizes (Click for Schematic)

Part Code

Internal Dimension (mm)

External Dimension

(mm)

Vent Area (m²)

VNT-XSF

1000 x 1000

1080 x 1080

0.98

VNT-XSF

1004 x 629

1084 x 709

0.62

VNT-XSF

1020 x 1020

1100 x 1100

1.02

VNT-XSF

1020 x 520

1100 x 600

0.52

VNT-XSF

1118 x 610

1198 x 690

0.67

VNT-XSF

1118 x 915

1198 x 995

1.00

VNT-XSF

1130 x 1130

1210 x 1210

1.25

VNT-XSF

410 x 410

490 x 490

0.16

VNT-XSF

490 x 490

570 x 570

0.23

VNT-XSF

590 x 490

670 x 570

0.28

VNT-XSF

610 x 247

690 x 327

0.14

VNT-XSF

610 x 305

690 x 385

0.18

VNT-XSF

610 x 458

690 x 538

0.27

VNT-XSF

610 x 470

690 x 550

0.28

VNT-XSF

610 x 610

690 x 690

0.36

VNT-XSF

645 x 645

725 x 725

0.40

VNT-XSF

653 x 653

733 x 733

0.41

VNT-XSF

762 x 457

842 x 537

0.34

VNT-XSF

762 x 610

842 x 690

0.45

VNT-XSF

890 x 457

970 x 537

0.39

VNT-XSF

914 x 610

994 x 690

0.54

VNT-XSF

920 x 586

1000 x 666

0.52

VNT-XSF

668 x 525

748 x 605

0.34

VNT-XSF

620 x 390

700 x 470

0.23

VNT-XSF

655 x 375

735 x 455

0.24

VNT-XSF

440 x 340

520 x 420

0.14

VNT-XSF

457 x 305

537 x 385

0.13

VNT-XSF

305 x 299

385 x 379

0.09

VNT-XSF

395 x 240

455 x 300

0.09

VNT-XSF

770 x 770

850 x 850

0.58

VNT-XSF

655 x 655

735 x 735

0.42

VNT-XSF

610 x 510

690 x 590

0.30

VNT-XSF

1140 x 655

1220 x 735

0.72

VNT-XSF

670 x 670

750 x 750

0.44

VNT-XSF

420 x 420

500 x 500

0.17

VNT-XSF

395 x 395

455 x 455

0.15

VNT-XSF

180 x 140

260 x 220

0.02