Vacuum pump flap valve material

N

N_Cook

Guest
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?
 
"hr(bob) hofmann@att.net" <hrhofmann@att.net> wrote in message
news:d09b9cf9-06b4-483d-8d95-40a570e6fed6@i14g2000yqo.googlegroups.com...
On Sep 26, 9:10 am, "N_Cook" <dive...@tcp.co.uk> wrote:
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?

Where do you get this stuff from, it is unique to the UK?
Click to expand...
When I had my Weller DS900 (oh why did I ever replace it with the crap Pace
that I've got now ?) I made new flap valves for the vacuum pump using a flat
VCR drive belt. I just cut them out using a small sharp scalpel. Worked a
treat ...

Arfa
 
On Sep 26, 9:10 am, "N_Cook" <dive...@tcp.co.uk> wrote:
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?
Click to expand...
Where do you get this stuff from, it is unique to the UK?
 
N_Cook <diverse@tcp.co.uk> wrote in message
news:k3v2c9$1a3$1@dont-email.me...
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?
Click to expand...
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
 
"N_Cook" <diverse@tcp.co.uk> wrote in message
news:k4186k$d3q$1@dont-email.me...
N_Cook <diverse@tcp.co.uk> wrote in message
news:k3v2c9$1a3$1@dont-email.me...
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
Click to expand...
Blimey ! When was the last time that you were involved with baby bottles ? I
don't think they've actually been that orange-y coloured stuff since we had
our kids 30 years ago ! The ones that my daughters have now are all just
semi- clear ...

Arfa
 
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