INSTALL 2019 - Laserfiche WebLink

Home Browse Search

CPW 7150 Overfill Prevention Valves The CARB-certified OPW 71 SO vapor -tight Overfill Prevention Valve is designed to prevent the overfill of underground storage tanks by providing a positive shut-off of product delivery. The shut-off valve is an integral part of the drop tube used for gravity filling. The OPW 71 SO allows easy installation (without breaking concrete) and requires no special manholes. The OPW 71 SO is a vapor -tight two- stage shut-off valve. When the liquid level rises to about 95% of tank capacity, the valve mechanism is released, closing automatically with the flow. This reduces the flow rate to approximately 5 gpm through a bypass valve. The operator may then stop the filling process and disconnect and drain the delivery hose. As long as the liquid exceeds the 95% level, the valve will close automatically each time delivery is attempted. If the delivery is not stopped and the liquid rises to about 96% of tank capacity, the bypass valve closes completely. No additional liquid can flow into the tank until the level drops below a reset point. NOTE: The 71 SO Overfill Prevention Valve can be adjusted to shutoff at any desired tank capacity. Please contact the Authority Having Jurisdiction (AHI) and review local, state, and national codes to determine the regulatory requirements governing shut-off capacity in your region, as well as take into account other considerations such as extreme tank tilt. In all cases, the upper tube must protrude into the tank at least 6 1/2 " to ensure that the valve can shut off flow into the tank completely before the top of the tank is wetted as per EPA requirements. 71 SO Instruction Sheet Order Number: H15524PA Materials Important In order to prevent product Valve Body: Cast aluminum spillage from the Underground Storage lank (UST), properly Float: Nitrile rubber, closed cell foam maintained delivery equipment Valve: Aluminum and a proper connection at the tight -fill adaptor are essenfal. Seals: Viton' Delivery personnel should Upper & lower Drop Tube: Aluminum to managed and trained to inspect delivery elbows Plastic parts: Acetal and hoses for damaged and G missing parts. They should Hardware: Stainless steel �ANR always make certain there Wit is a positive connection Features 7r between the adaptor and elbow. If delivery equipment ® Simple, Easy and Quirks is not properly maintained. Installation — no excavation or or the elbow is not securely special manholes required. coupled to the adaptor, a serious spill may result when o Economical — costs a fraction the DPW 71 SO closes, causing expensive, complicated and a hazard and environmental of ex P P contamination. difficult -to -install valves. 1 o Furnished Complete — supplied NOTE: The OPW 7150 is with new upper and lower drop tubes, designed for use on tight -110 gravity drop applications only. mounting hardware and thorough Do not use for pressure instructions for quick job site time, fill applications. o Completely Automatic Operation — no prechecks to perform, no resets ® Retrofits Directly —for both new and no overrides to be broken and existing tanks with 4" fill risers. or abused. o Quick Drain Feature — ® No Pressurization of the Tank — automatically drains hose when head operates directly from liquid level. pressure is relieved. o Will Accept a Dipstick o Best Flow Rate in The Industry" for Gauging OPW Test Lab results Advantages of Overfill Prevention Compared to Overfill Warning Systems: Completely Automatic faster fill times and reducing Operation — does not rely on the spill risk. alertness or speed of response of the o Speeds Delivery Operations delivery attendant for certainty of — product flows unimpeded into overfill prevention. the tank until the hose "kick" that Keeps the Top of UST "Dry," per EPA Requirements — eliminating possible leaks at loose bung fittings and the need for double containment on vent lines. Does Not Rely on Pressure in the UST to Stop Flow — allowing accompanies the valve shut-off provides a clear signal that the liquid has reached the shut-off level. o Simple and Inexpensive Installation — in both two-point and coaxial fill applications, no additional excavation, manholes or vent piping are required. _ Look for this a i:r Listings and� � Ph. IEne.evSa authentic OPW LvR Qr— �t Approved products. Certifications x,-IlsBoara 1 11ter• OPW 71SO is EVR Approved for E85 - rr.a��. �,'+�.+ .iglwxa+snrn.b:....w „,r,xf.:t". •+ .-•.�px'ai��9+w4�t. o •t" -. +`a's-.d' acr.w a �,sr 104