OPW 1611 Maintenance Manual
1
KPTI018-EN rev 0 2016-08-23
Please visit OPW’s website: www.opwglobal.com for further information
1611 SERIES VAPOR RECOVERY ADAPTOR
INSTALLATION AND MAINTENANCE INSTRUCTION
THIS MANUAL MUST BE LEFT WITH FACILITY MANAGEMENT
Please read these warnings and use the assembly instructions completely and carefully before starting.
Failure to do so may cause product failure, or result in environmental contamination due to liquid leakage into the soil, creating hazardous spill conditions.
Check to make sure the unit is intact and undamaged and all parts have been supplied. Never substitute
parts for those supplied. Doing so may cause product failure and void warranty.
Using electrically operated equipment near gasoline or gasoline vapors may result in a fire or explosion, causing personal
injury and property damage. Be sure that the working area is free from such hazards, and always use proper precautions.
At all times when product is in the storage tank keep the riser pipe capped, so the vapors cannot escape into the environment.
2
KPTI018-EN rev 0 2016-08-23
Please visit OPW’s website: www.opwglobal.com for further information
1. INSTALLATION
1. The riser nipple must be cut square and deburred.
2. Apply pipe dope to the nipple. Pipe dope to be non-hardening, gasoline resistant pipe thread
seal compound.
3. Tighten the adaptor onto the nipple with a torque of 90 ft-lbs min. to 110 ft-lbs max. This will be
enough torque to seat and seal the gasket.
2. TORQUE SPECIFICATION
Adaptor, 4” NPSM, 90 ft-lbs minimum to 110 ft-lbs maximum.
3. PREVENTIVE MAINTENANCE
Annually, inspect the adaptor for large dents, cracks or deformation. Replace if necessary.
Check the vapor poppet for damage and ensure that the poppet seats evenly with the adaptor.
Clean out any foreign objects from the vapor poppet’s seal and seal surface if necessary.
Test the poppet seal by applying a soap solution to the poppet while the storage tank is under a
positive gauge pressure of at least 2.00 inches W.C and inspect for the presence of bubbles. If the
facility continuously operates under vacuum, a bag test may be used by sealing a clear plastic bag
to the adaptor’s sides. If no bubbles appear at the poppet under positive pressure or the bag test
shows no signs of the bag collapsing, no further maintenance is required. If bubbles appeared
around the poppet seal or the bag collapsed, replace the poppet components and re-test.
4. REPLACEMENT PARTS
Complete poppet replacement, P/N 61VSA-KIT
Gasket, P/N H04145M (3” Riser)
Gasket, P/N H04150M (4” Riser)
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