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' 4 OPW 61SO OVERFILL PREVENTION VALVES The OPW 61 Sb Overfill positive shut-off of product delivery.The sh t ention Valve is designed to event the loffivalvde is an round ntegral storage tanks by providingg a a positive ty filling.The OPW 61 SO allows easy installation(without part of the drop tube used for gray breaking concrete)and requires no special manholes. The OPW 61 SO is a two-stage shut-off valve.When the liquid level rises to about 95%of tank s reduces the capacity,the valve mechanism is released,closing valve.Theloperator may then with the flow. 1stop the filling flow rale to approximately 5 gpm through a bypassose.As long as the liquid exceeds the 95%level, process and disconnect and drain the delivery the valve will close automatically each time delivery is attempted. ped and the liquid rises to about 98%of tank capacity,the bypass if the delivery is not stop valve closes completely.pe additional liquid can flow into the tank until the level drops below a reset point. lication including two-point, Models of the 61 S0 are available to meet virtually any UST app coaxial, poppeted coaxial and remote fill.The 61S0.3000 provides two-point overfill protection for _ 3"riser pipes,and the 61SO-1000 and 61$0-160C(CARB)feature a grooved-tube design for use Twith tank he OPW 61SO is app approved by the New York CityFireDepartment.(Approvproved al#4902)s are o available. IMPORTANT Fhoses r to prevent product spillage from the Underground Storage Tank(UST),property maintained delivery equipment and a pand roper connection at the tight-fill nd missing partsare eTheytorlshould always makecertainn theree e�l should be apositived toged and rch adapt e connection rNae Brouss sid pPl:elned to inspeblo a aesult for damaged a 9 maintained,or the elbow is not Y If delivery equipment is not pro Y lications. he OPW 61 s0 closes,causing a hazard and environmental contaaonl . Do not use for pressure fill app: The OPW 61 SO is designed for use on tight-fill gravity drop applications Certifications NY City Fire Features: and Listings GARB Departmen ♦Simple,Easy and Quick Installation No directly from Pressurization of liquid level. oral No excavation or special manholes IMII Accept a Dipstick for Gauging. 61So Series Initial APP required. Certification #4902 ♦ Retrofits Directly-For both new and tetter Oct 86 ♦ Economical-Costs a fraction of existing tanks with 3"or 4"fill risers. Updated Approval expensive,complicated and difficult to install valves. ♦ Quick Drain feature-Automatically Letter#9V-04 _ ♦ al Furnished Complete-Supplied with drains hose when head pressure is 61SOM App Letter#90.5 new upper and lower drop tubes, relieved. mounting hardware and thorough Best Flow Rate In The Industry.- 61sop Approval instructions for quick job site time. Letter#92.8 ♦Completely Automatic Operation No no Test witnessed by Bowser-Momer,Inc.,an no re prechecks to perform, anindependent laboratory.Results available overrides to be broken or abused. upon request. Materials Advantages of Overfill Prevention Valve body:cast aluminum Compared to Overfill Warning Systems: Float: nitrile rubber,closed cell foam Speeds Delivery Operations- Valve: aluminum ♦Completely Automatic Operation Product flows unimpeded into the tank Seals: viton Does not rely on the alertness or speed until the hose"kick"that accompanies Upper&lower Drop Tube: aluminum of response of the delivery attendant, the valve shut-off provides a clear for certainty of overfill prevention. signal that the liquid has reached the Hardware: taPlastic parts: icetal nless steel ♦ Keeps the Top of UST`Dry, per shut-off level. EPA Requirements-Eliminating Simple and Inexpensive Installation• ' possible leaks at loose bung fittings In both two-point and coaxial fill and the need for double containment applications,no additional excavation, on vent lines. manholes or vent piping are required. ♦ Does Not Rely on Pressure in the UST to Stop Flow-Allowing faster fill times and reducing spill risk.