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Threeseparate valves <br />address pressure/ <br />vacuum anndittana.in <br />storage tanks, <br />!' HuslprModel 4895 <br />Incorporates three <br />separate valves to. corn <br />trot over -pressure and.' <br />vacuum conditions <br />that arise in storage <br />tanks. The three valve <br />system provides the <br />necessary. protection <br />and durability needed <br />In a UST vent cap. <br />■ The vacuum valve is. <br />diaphragm operated, <br />and provides 10 times <br />more sealing force <br />than gravity devices: it <br />consistently opens at <br />8" of water column <br />(WC) vacuum. <br />to The first over -pressure <br />valve is diaphragm <br />operated, giving 10 <br />times more sealing <br />force than gravity <br />devices. It opens at 3" <br />Of water Column (WC) <br />pressure, <br />■ The safety over-pres- <br />slare valve is designed <br />to handle high pres- <br />sure/high flow condi- <br />PRESSUREMENT CAP FOR UST <br />tions. This valva will .. <br />SPECIFYING iNPOR MA.TIOU. <br />vent up to 7900 4CFK <br />at 2 psi: <br />Model Description. <br />WelgM <br />A Model 4&55 is certified <br />Number <br />Lbsi fk4.l <br />to less than 1/3• of the <br />4620 2" Slip -Ort Pressure.vent Cap <br />1,2,(54). <br />new CSR$ B`4886 <br />Standard CF -201, <br />2" Thread=0n Pressur® Vent Cap. <br />1.2 (541 <br />which allows installs-"® <br />Hon of 3 F/V vents <br />CONSTRUCTION <br />maximum -Reduces <br />installation time by <br />Body- Ole Cast Alumingm <br />not having to manifold <br />the vent pipes together, <br />Screen 40 Mean Stainless Steel. <br />■ The Model 4885 <br />(Threaded) Vent Cap <br />easily installs by using <br />the cast on hex nut. <br />.Allows tightening with- <br />out having to go <br />between vent pipes_ <br />■ The Model 4620 Slip <br />On Vent Cap, which <br />has same features as <br />Model 4885, has a - <br />main pliable seal that <br />seal$ to the vent staCk, <br />and provides <br />leakproof protection. <br />The $eal is at the end <br />of the vent stack, not <br />on the threads. Four <br />stainless steel set <br />screws grip the vent <br />stack. preventing any <br />10oaening of the seal. <br />Set Serews .Slainleed Steel <br />Deflector Aluminum <br />PATENTS AND LISTINGS, <br />U.L C.A.R.6, `FVR E.O. VR.101,A <br />Patents Pending <br />y <br />Model 4885 <br />