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Installation & Maintenance Manual

NV4000, NV4000E, NV4000C

Product Description 

The primary function of the Pressure/Vacuum (PV) vent is to control the pressure 
and vacuum condition of the tank during operation.  The vent is designed to 
relive (pop-off) pressure or vacuum due to temperature changes at specific 
setting.  The device is designed with a roll-over shut off feature to seat the tank 
in an overturn condition.  In addition, the vent is standard with a filter/flame 
arrestor.  

WARRANTY 

All parts and products are thoroughly inspected and tested from the time raw 
material is received at our plant, until the product is completed. We guarantee 
that all products are free from defects in materials and workmanship for a 
period of one year from the date of shipment. Any product that may prove 
defective within said one year period will, at our discretion, be promptly 
repaired, replaced or credit given for future orders. This warranty shall not apply 
to any products which has been altered in any way, which has been repaired by 
any party other than an authorized service representative, or when such a failure 
is due to misuse or condi-tion of use. We shall have no liability for labor costs, 
freight costs or any other costs or charges in excess of the amount of invoice  
for the products. 

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR 
IMPLIED AND SPECIFICALLY THE WARRANTIES OF MERCHANTABILITY  
AND FITNESS FOR A PARTICULAR PURPOSE. 

WARNING!!  

 

CIVACON

 products should be used in compliance with the applicable federal, 

state and local laws and regulations. Product selection should be based on 
physical specifications and limitations, compatibility with the environment,  
and the material being handled. 

CIVACON MAKES NO WARRANTIES OF 
FITNESS FOR A PARTICULAR PURPOSE. 

TECHNICAL ASSISTANCE  

 

If at any time during the installation a question arises that is not covered in this 

manual or with any other applicable documents feel free to call the Customer 

Service Department or visit our website at 

www.civacon.com. 

In the U.S., call 1-888-526-5657  

In all other countries, call your local agent. 

NOTE:

 All information subject to engineering and/or other changes. All trade names are copyrighted. Patents Pending. ©2018 Civacon. ©2018 Delaware Capital Formation, Inc.  

All Rights Reserved. DOVER and the DOVER logo are registered trademarks of Delaware Capital Formation, Inc., a wholly-owned subsidiary of Dover Corporation.

www.civacon.com

     

9393 Princeton-Glendale Road

     

Hamilton, Ohio, USA 45011

Phone: (800) 422-2525

     

Fax: (800) 421-3297

13212

RevB  May 2020

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