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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 /> vacuum conditions in of water column (WC) Model Description Weight <br /> storage tanks. pressure. Number Lbs. (kg.) <br /> ■ Husky Model 4620 ■ The safet, 4620 2" Slip On Pressure Vent Cap 1.17(.53) <br /> incorporates three sure valve . ed <br /> separate valves to con- to handle high pres- *111�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 Screen 40 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, tection. The seal is at <br /> and provides 10 times the end of the vent LISTINGS <br /> more sealing force stack, not on the <br /> than gravity devices. It threads. Four stainless <br /> consistently opens at steel set screws grip U.L. C.A.R.B. <br /> 8" of water column the vent stack, pre- <br /> (WQ vacuum. venting any loosening <br /> of the seal. UL �S°soo�� <br /> ■ The first over-pressure '4TY SyS� <br /> valve is diaphragm ■ Mounts on 2"threaded <br /> operated, giving 10 or smooth vent pipe. <br /> times more sealing Threaded adapter is <br /> available for areas that <br /> mandate threaded <br /> vents. <br /> pot% 3 IN. W- <br /> IN. <br /> -IN. WoC <br /> Model 4620 <br /> 8-98 <br />