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Designation
Filler Neck
Form
B
Version 1
with chain
Version 2
vent valve
Body material
thermoplastic
Component material
thermoplastic
D1=Diameter
46
D=Outside diameter
70
L1=Length
94
L=Length
41
D2
83
D3
58
D4
72
D5
60
D6
37
L1
94
L2
115
L3
14

Description

Material, version
1. Sealing cap red Polyamide 66 thermoplastic.

2. Filler sieve black Polypropylene thermoplastic.

3 Flange electro zinc-plated steel.

4. Fastening screws electro zinc-plated steel.

5 Flange seal cork.

6. Chain brass.
Note
Form A: the max. pressure while venting is 50 mbar (0.73 psi) with a max. air volume of 500 l/min. The air filter prevents dirt entering.

Form B: contains a plastic vent and aeration valve. The opening pressure while venting is 0.35 bar (±0.05 bar). The opening pressure while aerating is 0.05 bar. This form is suitable for applications where the airflow needs to be controlled in both directions.
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