Sherwood has received three reports involving
Sherwood TV 5861 valves in which the bonnet,
upper stem and hand wheel assembly reportedly
ejected from the valve body on the first filling
event of the cylinder in which the valve was
installed. Sherwood's initial investigation
has revealed that the bonnet thread strength
may have been compromised.
In the interest of safety we are requesting
that our customers quarantine the following
valves (part numbers listed below) with the
date code of 48-99
and 03-00 (an illustration of the location
of date codes can be found
here.)
TV
5881-28
TV 5861-38KF
TV 5881-32
TV
5861-32
TV 5861-28-4KF
TV
5861-32-7
TV 5861-32B
TV
5861-35-7
TV 5861-35
TV
5861-35KF
TV 5861-38-7
Sherwood does not believe that the reported
phenomenon involves TV series valves listed
above with a manufacturing process identifier
mark ")"; "O" or "X"
and it is not necessary to quarantine TV series
valves listed above with the specified date
codes which have the manufacuring process
identifier and of ")"; "O"
of "X". Sherwood will repoar or
replace quarantined valves as warranted.
Additional Instructions
for Sherwood Safety Alert Dated 06/07/2000
06/20/2000
The following are instructions for inspecting
cylinders with valves identified by the
Sherwood Safety Alert.
1) Inspect all CGA 580 valves.
2) Do not stand directly over the hand wheel
of the valve.
3) Do not attempt to operate the valve.
4) If you locate a valve that is the subject
of the safety alert, quarantine the cylinder
and valve and contact Ron Kelsey at (716)
283-1010 extension 2129 as soon as possible.
Sherwood is committed to assist the industry
in the quick and safe retrieval of product
from the industrial marketplace.
Temple University
Instructions To Be Followed For Sherwood Safety
Alert:
1) Inspect all cylinders to verify that
you do not have any of the suspected vaulty
Sherwood valves. Be sure to look for the
markings CGA 580 with the date coding 48-99
or 03-00.
2) If you find a valve that is subject to
the safety alert, do not attempt to open
valve. If the valve is currently being used,
(already connected to a pressurized system),
contact EHS for assistance.
3) Do not handle any cylinders that have
a suspected faulty valve.
4) Quarantine and/or isolate all faulty
cylinders until supplier replaces. Contact
the supplier for immediate replacement.
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