Laserfiche WebLink
zi <br />Three separate valves <br />address pressure/ <br />vacuum conditions in <br />storage tanks. <br />Husky Model 4885 <br />incorporates three <br />separate valves to con- <br />trol over -pressure and <br />vacuum conditions <br />that arise in•storage <br />tanks. The three valve <br />system , . vid thea-•" <br />necessary protection <br />and durability needed <br />in a UST vent carp. <br />ill 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 />4" <br />tions. This valve will <br />ve—t ;p to 7900 SCFH <br />at 2 psi. <br />N ::del 488_ is ,-ertlfteL <br />to less than 1/3 of the <br />new GARB EVR <br />Standard CP -201, <br />which allows installa- <br />tion of 3 P/V Vents <br />maximum. Reduces <br />installation time by <br />y not hiWig"to- anifold <br />the vent pipes together. <br />TheModel 4885 <br />J T breaded) Lent 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 />_ of water column The :Model 4620 Slip <br />(WC) vacuum. <br />On Vent Cap, which <br />• The first over -pressure <br />has same features as <br />Model 4885, has a <br />valve is diaphragm <br />main pliable seal that <br />operated, giving 10 <br />seals to the vent stack. <br />times more sealing <br />and provides <br />force than gravity <br />leakproof protection, <br />devices. it opens at 3- <br />The seal is at the end <br />of water column (WC) <br />of the vent stack, not <br />pressure. <br />on the threads. Four <br />• The safety over-pres- <br />stainless steel set <br />screws grip the vent <br />sure valve is designed <br />stack, preventing any <br />to handle high pres- <br />loosening of the seal_ <br />sure/high flow condi- <br />PROFESSIONAL SERVICES BRANCH <br />SIGrSE CESSECTIONNo <br />Exception Taken'on, <br />See Comments <br />Revise and Resubmit <br />13 Rejected <br />� <br />SPECIFYING INFORMATION <br />Model Description Weight <br />Number Lbs. 'kg.) <br />4620 2" Slip -On Pressure Vent Cap 1.2 (.a4) <br />85 2" Thread -On Pressure Vent Cap 1.2(-54) <br />CONSTRUCTION <br />Body Die Cast Aluminum <br />Sere®n 40 Mesh Stainless Steel <br />Set Screws Stainless Stool <br />13e1leC1cr Ali--, inum <br />PATENTS AND LISTINGS <br />U,L. C.A.R.B. "EVR E.O. VR.101.A <br />Patents Pending <br />Correction or comments made on the shop drawings during <br />this review do not relieve contractor from compliance with <br />requirements of the drawings and specifications. This <br />check is only for review of genera+ conforma^i.e witn the <br />design concept of the prtjiact er;.l Qoneral corr.pliarce with <br />the information given Doci, Plents.:.ontrac- <br />for is respons.b'e inr { c;;4 �laritl- <br />ties and dimensions, selecting -,ab catior1 processes - and <br />techniques of consiruction; coordinating work with that of <br />all other trades; and performing the work in a safe and <br />satisfactory manner. The above action is contingent upon <br />no increase in contrad price nor extension of contract time. <br />Date 1/ y • <br />Model 4R__55 <br />