Field Advisory Notice
Date: 25 November 2002 FAN#: 00001
Purpose:The Field Advisory Notice (FAN) is to alert you about the following information on your Asymtek equipment. This FAN requires your immediate attention and action as indicated below.
Topic:
New Composite Stopcock for DP-3000 Series Pump
Description:
Asymtek has developed a new composite stopcock for DP-3000 Series pumps.
Its features and benefits:
- Longer life by 2 to 4 times, depending on the application
- Improved chemical resistance
- Faster refill times
- Drop-in
replacement for the old part - no modifications required
- Lower operating costs due to faster refills and less production down-time to change out stopcocks.
Vital
Information:
Effective February 1, 2003 the new composite stopcock will be supplied
for new DP-3000 Series pumps (but not DP-3140-LB models) and replacement
stopcocks for DP-3000 and DP-2000 Series pumps.
New
part number: 194428 Composite Stopcock.
Part numbers now obsoleted: 42-0367 Polycarbonate stopcock, 42-0083 Nylon
stopcock.
Action Required: User Testing
CAUTION!
All users should test the composite stopcock for compatibility with their
fluids. It is impossible for Asymtek to test every fluid that might be
used in the DP Series pump with the new stopcock.
You can order
four (4) parts without cost for testing. Please contact your local Asymtek
distributor or sales representative to order the free samples on a no-charge
purchase order. The new stopcocks are available now.
Asymtek also offers services for running qualification tests for customers.
Process verification is $1300 per day. Please contact your local Asymtek
representative for details.
Visit our
website to find your local sales support: www.asymtek.com/contactus.htm
Additional Information:
Why a
new stopcock?
Throughput demands have increased and fluids have longer pot lives. As
a result, users want less operator intervention to run dispensing equipment.
It was determined that a longer-life stopcock for DP-3000 series pumps
would fit that request.
What
does the composite stopcock look like?
The composite stopcock is designed to be form,fit, and functionally compatible
with the DP-3000 pumps so no changes are required to use it. The outer
body is made from a black nylon with fiberglass filler (approximately
25%). The spool of the stopcock is white and is made from a High-Density
Polyethylene (HDPE) material.
Are there
any other changes to the stopcock?
The port holes on the refill side of the stopcock have been made larger
to facilitate faster refill times. Ribs have been added to produce a stiffer
body to the stopcock. The seal between the spool and the body of the stopcock
has been improved to lengthen the life or number of actuations and still
retain a good seal. Also, the chemical resistance of the stopcock has
been improved through the use of new materials for this part.
What testing
has been done on the stopcock?
The composite stopcock has been extensively tested in the US, Europe and
China at three different production sites. These customers found it had
a significant improvement in life of the part with their materials. Based
on these results, it is anticipated that users will see 2x to 4x improvement
in the life of the stopcocks in production.
What if
I want to keep buying the current stopcock?
Until February 1, 2003, users can order unlimited amounts of the current
stopcock. After this date, Asymtek will phase out its manufacture and
the price will increase significantly.
What if
I have more questions about the new stopcocks?
If you have any questions or require additional support, contact your
regional Technical Support Manager or Asymtek's Technical Support Group:
- In the US: 1-800-ASYMTEK (1-800-279-6835)
- Telephone:
1-760-431-1919
- Email:
info@asymtek.com
- Web site:
Find your local technical support, www.asymtek.com/support.htm
- Web store: If you're already signed up or would like to sign up, the web store is a convenient way to order spare parts, www.asymtek.com/webstore.
