|Caliente Xtreme All Metal Bakeable Compact Manual Angle Valve, 0.75 Inch, 1.33 Inch CF-F Conflat, SS|
Caliente Xtreme All Metal Isolation Compact Angle Valve, 0.75 Inch Manual, 1.33 Inch CF-F Vacuum Fittings, Conflat Flange, Stainless Steel.
These all metal Isolation seal angle valves are
intended for use in UHV or cryogenic
applications where temperature extremes
preclude the use of our elastomer seal
valves. Approved for use in beamline
facilities, these valves have a temperature
operating range from -250°C to 400°C.
The pulled-port method is used for
the fabrication of the stainless steel
bodies resulting in higher conductance
and better cleanliness.
The life of the copper poppet seal is
dependent upon the temperature at
which the valve is used. Maximum
temperature bakeouts may require copper
poppet seal replacement after 50 cycles,
while hundreds of cycles are possible
with moderate bakeouts. As many as
10,000 cycles have been obtained
from the same seal during testing.
A dial indicator at the top of the valve
indicates the proper torque for closure
and also when the seal should be replaced.
The copper poppet seal is easily replaced
by opening the valve with a slotted screw
driver. The seal is removed through the
side port and a new one replaced in a
After seal replacement the
valve must be torqued to a higher value
than during normal operation to make it
seat. Do not exceed the maximum
After closing the valve to its
normal torque value loosen the set screw
below the closure nut, rotate the indicator
to the furthest counter-clockwise line
on top of the valve and retighten the set
screw. The valve may be closed to this
mark indefinitely. Periodic checks with a
torque wrench will indicate seat wear
and the proper mark to use for alignment.
When the indicator has reached the last
mark we recommend seal replacement.
These All metal isolation valves are designed to have a low leak rate, typically on the order of 1x10-10 std. cc/sec UHV. These Isolation valves have a CF Conflat 1.33 inch Vacuum flange for connection to the vacuum system, are manually operated, and made of Stainless Steel.
Product: Caliente Xtreme All Metal Bakeable Compact Manual Angle Valve, 0.75 Inch, 1.33 Inch CF-F Conflat, SS
Warranty: Against Product Defect
Part Number: P104364