Multi-Layered Explosion Vent – Domed (VNT-XSD) (VNT-XRD)

Multi-Layered Explosion Vent – Domed (VNT-XSD) (VNT-XRD)

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Multi-Layered Explosion Vent - Domed

Excellent service life for processes with medium vacuum and back pressure conditions

The storage and handling of grain and powders inherently produces dusty conditions that can lead to potentially dangerous explosions. Elfab’s explosion venting panel range offers protection against such disasters. Elfab is unique in having its panels approved as a “protective System” II GD (when used with an Elfab approved Frame).

Its domed design Multi-Layered Explosion Vent brings the additional benefit of enhanced operating performance under cyclic pressure, back pressure and vacuum conditions. With the highest Operating Ratio across the Elfab explosion panel range of 80%, this distinctive bursting panel allows for enhanced cycling characteristics.

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 option to tailor a solution to meet your exact requirements.

To meet the relief area requirements of a wide variety of applications, Elfab offers its Multi-layered Explosion Panels in a square, rectangular, round or trapezoid construction with a wide range of bolt pattern configurations. This unique range of non-fragmenting bursting panels is available with a standard burst pressure of 0.05 or 0.1 BarG @15/30°C with a 25% tolerance. Elfab’s multi-layered design venting panels are suitable for use in high temperature conditions.

 

 

 

 

 

 

 

 

 

Optional integral burst detection for immediate shut-down

Elfab’s Multi-layered Explosion Vents 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.

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.

  • Vacuum and back pressure capability
  • Enhanced cycling characteristics
  • Low installation costs
  • Maintenance free
  • Non-fragmenting design
  • Fail-Safe rapid full venting
  • High temperature capability
  • Excellent corrosion resistance
  • Dust tight seal

 

The Multi-layered Domed 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 80%
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 Up to Full Vacuum
Torque Dependent (Y/N) N
Vent-Tel Detection Optional
Optional Accessories Frame, Gasket
Shape Designs Rectangular, Square, Round
Materials Stainless Steel as standard

*Higher temperatures available on request

 

Multi-Layered Domed Sizes (Click for Schematic)

Part Code

Internal Dimension (mm)

External Dimension

(mm)

Vent Area (m²)

VNT-XSD

1000 x 1000

1080 x 1080

0.98

VNT-XSD

1004 x 629

1084 x 709

0.62

VNT-XSD

1020 x 1020

1100 x 1100

1.02

VNT-XSD

1020 x 520

1100 x 600

0.52

VNT-XSD

1118 x 610

1198 x 690

0.67

VNT-XSD

1118 x 915

1198 x 995

1.00

VNT-XSD

1130 x 1130

1210 x 1210

1.25

VNT-XSD

410 x 410

490 x 490

0.16

VNT-XSD

490 x 490

570 x 570

0.23

VNT-XSD

590 x 490

670 x 570

0.28

VNT-XSD

610 x 247

690 x 327

0.14

VNT-XSD

610 x 305

690 x 385

0.18

VNT-XSD

610 x 458

690 x 538

0.27

VNT-XSD

610 x 470

690 x 550

0.28

VNT-XSD

610 x 610

690 x 690

0.36

VNT-XSD

645 x 645

725 x 725

0.40

VNT-XSD

653 x 653

733 x 733

0.41

VNT-XSD

762 x 457

842 x 537

0.34

VNT-XSD

762 x 610

842 x 690

0.45

VNT-XSD

890 x 457

970 x 537

0.39

VNT-XSD

914 x 610

994 x 690

0.54

VNT-XSD

920 x 586

1000 x 666

0.52

VNT-XSD

920 x 920

1000 x 1000

0.83

VNT-XSD

668 x 525

748 x 605

0.34

VNT-XSD

620 x 390

700 x 470

0.23

VNT-XSD

655 x 375

735 x 455

0.24

VNT-XSD

440 x 340

520 x 420

0.14

VNT-XSD

457 x 305

537 x 385

0.13

VNT-XSD

305 x 299

385 x 379

0.09

VNT-XSD

395 x 240

455 x 300

0.09

VNT-XSD

770 x 770

850 x 850

0.58

VNT-XSD

655 x 655

735 x 735

0.42

VNT-XSD

610 x 510

690 x 590

0.30

VNT-XSD

1140 x 655

1220 x 735

0.72

VNT-XSD

670 x 670

750 x 750

0.44

VNT-XSD

420 x 420

500 x 500

0.17

VNT-XSD

395 x 395

455 x 455

0.15

VNT-XSD

180 x 140

260 x 220

0.02