A | Without dipstick |
B* | With dipstick |
0 | With splash guards, with wire mesh filter |
1 | With splash guards, without filter |
2 | With splash guards, with PU filter |
3 | Without splash guards, without filter |
4 | Without splash guards, with PU filter |
d1 | d2 Pipe thread | Fine thread | d3 | d4 | l1 | l2 ≈ | l3 |
---|---|---|---|---|---|---|---|
1.22 | 1/4 NPT | - | 0.28 | 0.79 | 0.39 | 1.38 | - |
1.65 | 1/4 NPT | - | 0.28 | 1.18 | 0.39 | 1.54 | - |
1.65 | 3/8 NPT | - | 0.31 | 1.18 | 0.59 | 1.73 | - |
1.65 | 1/2 NPT | - | 0.47 | 1.18 | 0.67 | 1.81 | - |
1.65 | 3/4 NPT | - | 0.67 | 1.18 | 0.71 | 1.81 | - |
2.24 | 3/4 NPT | - | 0.63 | 1.54 | 0.71 | 1.97 | - |
d1 | d2 Pipe thread | Fine thread | d3 | d4 | l1 | l2 ≈ | l3 | |
---|---|---|---|---|---|---|---|---|
1.22 | G 1/4 | - | - | 0.31 | 1.18 | 0.37 | 1.16 | 7.40 |
1.22 | G 3/8 | M 16 x 1.5 | M 18 x 1.5 | 0.39 | 1.18 | 0.37 | 1.16 | 7.40 |
1.22 | G 1/2 | M 20 x 1.5 | M 22 x 1.5 | 0.47 | 1.18 | 0.37 | 1.16 | 7.40 |
1.65 | G 3/8 | - | - | 0.39 | 1.61 | 0.45 | 1.44 | - |
1.65 | G 1/2 | - | - | 0.47 | 1.61 | 0.45 | 1.44 | - |
1.65 | G 3/4 | - | - | 0.71 | 1.61 | 0.45 | 1.44 | 7.24 |
1.65 | G 1 | - | - | 0.71 | 1.61 | 0.45 | 1.44 | 7.24 |
2.24 | G 3/4 | - | - | 0.71 | 2.20 | 0.55 | 1.65 | - |
2.24 | G 1 | - | - | 0.91 | 2.20 | 0.55 | 1.65 | - |
2.24 | G 1 1/4 | - | - | 1.10 | 2.20 | 0.63 | 1.65 | 7.24 |
2.24 | G 1 1/2 | - | - | 1.10 | 2.20 | 0.63 | 1.65 | 7.24 |
EN 552 breather caps are used in fluid containers that must be vented. If the fluid is moving, e.g. with a running gear in a fluid bath, there is a risk of fluid leakage. With properly arranged splash guards (see graph), these breather caps prevent fluid from leaking without substantially impairing the venting process (pressure compensation). The splash guards can be left out if their function is not required or if a higher air flow rate is desired (Identification no. 3 and 4). A filter is used to protect the fluid from external contamination (dust). The filter is located behind the splash guards to prevent it from making contact with the fluid and being saturated by capillary effect. For a very high air flow rate (the fluid level of the container is changing quickly), Breather Caps EN 663 should be used. |
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Air flow rate [l/min] as a function of pressure difference Δp [mbar] container / outside space |
Air flow rate [l/min] as a function of pressure difference Δp [mbar] container / outside space |
For the series with dipstick shown above, a shortening and / or the attachment of level markings can be ordered with the service GN 109. The fluid level markings / special lengths GN 109 are to be ordered as a separate item in shopping cart step 1 under note. |
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Min | Max | Price |
---|---|---|
1 | 6 | $6.08 |
7 | 99 | $5.86 |
100 | 249 | $5.53 |
≥ 250 | $4.98 |
Our service team is available from Monday to Friday between 7:30 AM and 5:00 PM Central Time: 800-877-8351