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FILE COPY <br /> HUSKY 4620 <br /> PRESSURENENT CAP FOR UST <br /> Three separate valves force than gravity SPECIFYING INFORMATION . <br /> address pressure/ devices. It opens at 3" <br /> vacttuum Conditions in of water column (WC) Model Description Weight <br /> storage tanks. pressure. .rCN7 Number Lbs. (kg.) <br /> ■ Husky Model 4620 ■ The safety over-pres- P3 4620 2"Slip-On Pressure Vent Cap 1,17(.53) <br /> Incorporates three sure valve is designed <br /> separate valves to con- to handle high pres- )4885 2"Thread-On Pressure Vent Cap 1.17(.53) <br /> trol over-pressure and sure/high flow condi- <br /> vacuum conditions tions.This valve will <br /> that arise in storage vent up to 7900 SCFH CONSTRUCTION <br /> tanks.The three valve at 2 psi. <br /> system provides the Body Cast Aluminum <br /> necessary protection ■ The Model 4620 Vent <br /> and durability needed Cap has a pliable main Sween 4t]Mesh Stainless Steel <br /> in a UST vent cap. seal that seals to the Set Screws Stainless Steel <br /> vent stack and pro- <br /> ■ The vacuum valve is vides leakproof pro- Deflector Aluminum <br /> diaphragm operated, tecton.The seal is at <br /> and provides 10 times the end of the vent PATENTS AND LISTINGS <br /> more sealing force stack, not on the <br /> than gravity devices. It threads.Four stainless U.L. C.A.R,B. <br /> consistently opens at steel set screws grip <br /> 8"of water column the vent stack, pre- Patents Pendng <br /> (WC)vacuum, venting any loosening - <br /> ■ The first over-pressure of the seal. <br /> valve Is diaphragm ■ Mounts on 2"threaded V 4%w <br /> operated,giving 10 or smooth vent pipe. <br /> times more sealing Adapter available for <br /> 3"pipe,for 2"threaded <br /> or slip-on. <br /> Ott <br /> Model 4620 <br />