1
71SO Overfill Prevention Valves and
71SO Testable Overfill Prevention Valves
Installation and Maintenance Instructions
IMPORTANT INFORMATION
FOLLOW ALL INSTRUCTIONS
Please read these warnings and use and assembly
instructions completely and carefully before start-
ing. Failure to do so may cause product failure, or
result in environmental contamination due to liquid
leakage into the soil, creating hazardous spill condi-
tions.
OPW Standard Product Warranty Tag:
Notice: Flex-
Works by OPW, Inc., VAPORSAVER™ and all other OPW
products must be used in compliance with all applica-
ble federal, state, provincial and local laws, rules and
regulations. Product selection is the sole responsibility
of the customer and/or its agents and must be based
on physical specifications and limitations, compatibil-
ity with the environment and material to be handled.
All illustrations and specifications in this literature are
based on the latest production information available
at the time of publication. Prices, materials and speci-
fications are subject to change at any time, and mod-
els may be discontinued at any time, in either case,
without notice or obligation.
OPW warrants solely to its customer (the initial pur-
chaser and any subsequent purchasers within the
warranty period) that the following products sold by
OPW will be free from defects in materials and work-
manship under normal use and conditions for the pe-
riods indicated:
OPW’s exclusive obligation under this limited warran-
ty is, at its option, to repair, replace or issue credit (in
an amount not to exceed the list price for the product)
for future orders for any product that may prove de-
fective within the applicable warranty period. (Parts
repaired or replaced under warranty are subject to
prorated warranty coverage for remainder of the orig-
inal warranty period). Complete and proper warranty
claim documentation and proof of purchase required.
All warranty claims must be made in writing and deliv-
ered during the applicable warranty period to OPW at
OPW 9393 Princeton-Glendale Road Hamilton, Ohio,
USA 45011, Attention: Customer Service Manager. No
products may be returned to OPW without its prior
written authority.
This limited warranty shall not apply to any FlexWorks
or VAPORSAVER™ product unless it is installed by an
OPW attested installer and all required site and warran-
ty registration forms are completed and received by
OPW within 60 days of installation. This limited warran-
ty also shall not apply to any FlexWorks, VAPORSAVER™
or other OPW product: unless all piping connections are
installed with a nationally-recognized or state-
approved leak detection device in each tank and dis-
penser sump (which are not for storage and from which
all discharge hydrocarbons must be removed, and the
systems completely cleaned, within 24 hours); unless
testable sumps utilize FlexWorks pipe and access fit-
tings; unless a sump inspection log or an EPA recom-
mended/required checklist is maintained and the re-
sults are furnished to OPW upon request; and unless
OPW is notified within 24 hours of any known or sus-
pected product failure and is provided with unrestrict-
ed access to the product and the site. This limited war-
ranty also shall not apply to any product which has
been altered in any way, which has been repaired by
anyone other than a service representative authorized
by OPW, or when failure or defect is due to: improper
installation or maintenance (including, without limita-
tion, failure to follow FlexWorks Quick Reference Manu-
al Installation Guide and all product warning labels);
abuse or misuse; violation of health or safety require-
ments; use of another manufacturer’s, or otherwise un-
PRODUCT
WARRANTY PERIOD
FlexWorks Primary Pipe
10 years from date of manufacture
All Products and re-
placement parts in-
stalled in the State of
California
Certified to California CP
-201 and/or CP-206
Standards*
1 year from date of installation (proof of
purchase from certified contractors/
technicians required)
OPW warrants ongoing compliance with
the standards and specifications for the
duration of the warranty period required
by the State of California; this limited war-
ranty is under the condition the equip-
ment was installed and maintained by
trained and certified contractors/
technicians unless noted in Installation
Manual.
All other Products and
replacement parts
1 year from date of manufacture**
*Products certified to California CP-201 and/or CP-206 Standards
have been factory tested and met all applicable performance stand-
ards and specifications and will have an OPW registration card en-
closed/attached to the product.
