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We are the Market Leader in Dust Control Spare Part Supply

Explosion Isolation Non Return Valve - ATEX certified

This (ATEX certified) explosion non-return valve is designed to separate the filter from the plant. It is a simple and effective system that is easy to install, without electronics which requires no electrical connections, practically no maintenance and with very low pressure loss. Scroll down for more...

During the normal process, the non-return valve's flap remains opened due to the airflow. At deadlock, the valve closes due to the flap's own weight. When an explosion takes place, the ATEX certified non-return valve blocks the expansion of the explosion due to the front spreading pressure along the ductwork

Position indicators also available

Atex Non return valve flange

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Starting at £1,855.50 £1,546.25

Available
FREE DELIVERY over £350
Product Code
ATEX-NON-RETURN-VALVE
Data Sheet

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Product Code Diameter Stock Qty Price
ANRV-200 200mm 3 - 4 Weeks
£1,855.50 £1,546.25
ANRV-250 250mm 3 - 4 Weeks
£1,968.30 £1,640.25
ANRV-300 300mm 3 - 4 Weeks
£2,164.32 £1,803.60
ANRV-350 350mm 3 - 4 Weeks
£2,283.36 £1,902.80
ANRV-400 400mm 3 - 4 Weeks
£2,773.44 £2,311.20
ANRV-450 450mm 3 - 4 Weeks
£2,842.08 £2,368.40
ANRV-500 500mm 3 - 4 Weeks
£3,332.16 £2,776.80
ANRV-550 550mm 3 - 4 Weeks
£3,675.24 £3,062.70
ANRV-600 600mm 3 - 4 Weeks
£4,037.94 £3,364.95
ANRV-650 650mm 3 - 4 Weeks
£4,513.33 £3,761.11
ANRV-700 700mm 3 - 4 Weeks
£4,861.32 £4,051.10
ANRV-750 750mm 3 - 4 Weeks
£6,601.19 £5,500.99
ANRV-800 800mm 3 - 4 Weeks
£6,738.42 £5,615.35
ANRV-850 850mm 3 - 4 Weeks
£8,856.54 £7,380.45
ANRV-900 900mm 3 - 4 Weeks
£9,082.02 £7,568.35
ANRV-950 950mm 3 - 4 Weeks
£10,199.46 £8,499.55
ANRV-1000 1000mm 3 - 4 Weeks
£10,723.86 £8,936.55

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Explosion Isolation Non Return Valve - ATEX certified

Sizes from 200mm to 1000mm Diameter

This non-return valve is designed to separate the filter from the plant. It is a simple and effective system that is easy to install, without electronics which requires no electrical connections, practically no maintenance and with very low pressure loss.

During the normal process, the non-return valve's flap remains opened due to the airflow. At deadlock, the valve closes due to the flap's own weight. When an explosion takes place, the ATEX certified non-return valve blocks the expansion of the explosion due to the front spreading pressure along the ductwork

After an explosion, pressure fluctuations can cause the valve to reopen. To prevent this, a safety lock system is in place. This system uses a flexible spring metal mechanism. If the valve flap closes, it engages the locking system, securing the flap beneath the top plate. Following the explosion, it's crucial to manually unlock the valve flap once the event is over. Additionally, a thorough inspection of the entire valve is necessary to identify any damage that may affect its operation. Please be aware that the inner flap may also self-lock during reverse current cleaning of the filter. In such cases, it's advisable to check the installation distance and reverse flow pressure to minimize any impact on the non-return valve.

The non-return valve is an excellent ATEX certified Safety system for the compartmentalization of an explosion and is suitable for use in Ex zone 21 (ext.) and up to Ex zone 20 (int.).

Advantages:

- Economically suitable solution for security against an explosion

- Completely mechanical requiring practically no maintenance

- NO power consumption

- Simple assembly, operation and maintenance

- Low pressure losses

- High pressure resistance

- Applicable for dust St1 organic & non-metallic

- Short installation distance

This product is non returnable - please see our Terms & Conditions 

If you have any questions about this product or if you do not find what you are looking for please feel free to call us on 03456 800 696 and we will be happy to help.

More Information
Diameter 200mm - 1000mm
Minimum Price Inc VAT 1,855.50
Minimum Price Ex VAT 1,546.25
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  • Delivery Information

    Standard delivery when ordering before 2.30pm with DPD and before 12:30 with DX

    Expresspaks - £8.99 | Standard from £12.48
  • Next Day - Pre 10:30am - DPD

    Next working day before 10:30am when ordering before 2.30pm available on some items

    From £21.19
  • FREE UK DELIVERY

    When you spend over £350 in one order.*T&C Apply*

    FREE
  • Lead Times & Back Orders

    Orders with a lead time can be split at checkout

    FREE

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