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Vacuum pump flap valve material

N

N_Cook

Jan 1, 1970
0
Used as external source of vacuum for an OKI SA4 desolder station but not
necessarily OKI.
Perhaps 20 to 30 years old. Simple 25W Japanese motor driving epicyclic
rotary to reciprocatory
bearing with linkage to a disc of rubber . Other side of the rubber a
chamber with a Al closure plate with 2 holes and matching cover with a
gasket between. This gasket has what was probably 2 simple flaps profiled
from the disc which has disintegrated, seating over the hole/well
combinations in Al disc and cover. The material now looks like , and has the
structural integrity of , translucent orangey-brown gelatine sheet. At the
moment I'm profiling a disc of silicon rubber, but if that does not work ,
anyone have any idea what the original material was?
 
H

hr(bob) [email protected]

Jan 1, 1970
0
Used as external source of vacuum for an OKI SA4 desolder station but not
necessarily OKI.
Perhaps 20 to 30 years old. Simple 25W Japanese motor driving epicyclic
rotary to reciprocatory
bearing with linkage to a disc of rubber . Other side of the rubber a
chamber with a Al closure plate with 2 holes and matching cover with a
gasket between. This gasket has what was probably 2 simple flaps profiled
from the disc which has disintegrated, seating over the hole/well
combinations in Al disc and cover. The material now looks like , and has the
structural integrity of  , translucent orangey-brown gelatine sheet. Atthe
moment I'm profiling a disc of silicon rubber, but if that does not work ,
anyone have any idea what the original material was?

Where do you get this stuff from, it is unique to the UK?
 
N

N_Cook

Jan 1, 1970
0
N_Cook said:
Used as external source of vacuum for an OKI SA4 desolder station but not
necessarily OKI.
Perhaps 20 to 30 years old. Simple 25W Japanese motor driving epicyclic
rotary to reciprocatory
bearing with linkage to a disc of rubber . Other side of the rubber a
chamber with a Al closure plate with 2 holes and matching cover with a
gasket between. This gasket has what was probably 2 simple flaps profiled
from the disc which has disintegrated, seating over the hole/well
combinations in Al disc and cover. The material now looks like , and has the
structural integrity of , translucent orangey-brown gelatine sheet. At the
moment I'm profiling a disc of silicon rubber, but if that does not work ,
anyone have any idea what the original material was?

Seems to work with silicone rubber.
I suspect the original material was that translucent orange-brown
formulation of latex they use for baby feeding bottle teats
 
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