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  2. Systems and components for machine and plant construction
  3. 28000
  4. Filler necks, vent screws
  5. Vent screws with check valve
    6. 28038-30038
Designation
Vent Screw
Version 1
check valve
Version 2
without dipstick
Body material
thermoplastic
D1=Thread
G3/8
D=Outside diameter
30
Fastening type
screw in
L
21
L1
10

Description

Material
Housing and cap thermoplastic polyamide 66.
Spring stainless steel.
Lift disc and flat seal rubber (NBR).
Version
Housing black.
Cap red.
Note
Opening pressure 0.20 – 0.25 bar.
Temperature range
Temperature resistant with oil up to 100°C.
Drawing reference
1) flat seal
2) lift disc
3) cap
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