Metric  Size,
Filler Breathers

EN 774.1

Elesa Model TVD



RoHS Compliant
 
Specification
Information

Cap:
Red (RAL 3000) version: Technopolymer plastic (polypropylene PP), membrane and flat seal in EPDM (Ethylene-Propylene-Dim-Caoutchoc)
Green version: Technopolymer plastic (polypropylene PP), membrane and flat seal in FKM (Fluor-Caoutchoc-Viton®) rubber
Symbol: Black printed
Threaded body: Matte black technopolymer plastic

Shipping

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.
Maximum continuous working temperature: 120 °F (50°C).

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BSPP Threads Table

Dimensions in:

millimeters
(inches)

Part Number
d1
d2
Pipe Thread
d3
d4
l1
l2
Red Version
Green Version
70
(2.76)
G 1 1/4"
33
(1.30)
68.5
(2.70)
17
(.67)
59
(2.32)

Air Flow Rate

Air Flow Rate Pressure Drop (mbar)
l / min.
Sealing Membrane
EPDM
(red cap)
FKM
(green cap)
50
370
360
40
330
320
30
280
260
20
230
210
10
160
140
5
130
110