EN 774.1 Filler Breathers Plastic, with membrane


ELESA original design
code: TVD.

Product description


EN 774.1 Elesa® original design technopolymer plastic filler breathers.

These breathers prevent the build-up of a pressure drop over liquids in a tank. They are used when a tank has to be rapidly emptied. The elastic membrane insures a sufficient supply of air to prevent any vacuum build-up in the tank.

Additionally, the back pressure behind the membrane will prevent the escape of any liquid in the tank to the outside, especially during transport.
If the tank is turned upside down with the additional back pressure from the liquid, it will be sufficient to keep the outlet firmly shut.
Breather caps can be used with EN 664 or EN 664.1 filler strainers.

Resistant to solvents, oils, grease and other chemical agents.


  • Plastic (Polypropylene PP)
  • temperature resistant up to 120° F (50° C)

Upper part (cap)
  • Red, RAL 3000RTRT
    Membrane and flat seal EPDM (Ethylene-Propylene-Dim-caoutchoc)
  • GreenGNGN
    Membrane and flat seal FKM (Fluor-caoutchouc, Viton®)
  • Symbol black printed

Threaded body
  • matte black

Technical drawing

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EN 774.1 Plastic Filler Breathers sketch

Part Options / Table

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Dimensions in: Inch (change to Metric)
d3d4l1l2Air flow rate in l/min
Presssure drop
in mbar

Sealing membrane

2.76G 11/41.302.70.672.321.9714.1714.57
2.76G 11/41.302.70.672.321.5712.6012.99
2.76G 11/41.302.70.672.321.1810.2411.02
2.76G 11/41.302.70.672.32.798.279.06
2.76G 11/41.302.70.672.32.395.516.30
2.76G 11/41.302.70.672.32.204.335.12

Build & Price

Outside diameter d1
Thread d2

Selected Part

Total USD (net)
In stock: 0
Call / Email for Delivery Time
Please note our quantity discounts (USD).
≥ 250$26.39
Weight: 0.160 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
RoHS compliant: -
This part is new in our product range, no details are available at this time. For more recent details on the RoHS compatibility, please contact our Sales Department!
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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