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  3. 28000
  4. Filler necks, vent screws
  5. Filler necks, plastic with mounting flange
    6. 28072-270
Designation
Filler neck
Version 1
with chain
Version 2
vent valve
Form
B
Main material
thermoplastic
Component material
thermoplastic
D1=Diameter
46
D=outside diameter
70
L=Length
41
D2
83
D3
58
D4
72
D5
60
D6
37
L1
94
L2
115
L3
14
~ CONFLICT MINERALS 3TG status
no intentional 3TG
~ CP65 substance 1 cancer & reproductive toxicity
lead and lead compounds
~ CP65 substance 2 cancer
soots, tars, and mineral oils
~ PFAS free?
yes
~ REACH SVHC-free?
no
~ REACh SVHC 1 name > threshold
lead
~ RoHS conformity
yes, with exemption
~ RoHS exemption/s
III/6c
~ TSCA 6(H) conformity
yes

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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