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' Emergency • Valves Emergency Shutoff Valve UL listed...required on underground tank motor fueling UL systems.The emergency shutoff valve,or"impact valve", is installed on the fuel line directly under the dispenser.It ' is intended to shut off the flow of product in the event of impact and/or fire involving the dispenser. In normal operation,the valve is left open,held in position by a fusible link.A shear section is located in the upper half of the valve and should be installed level with the base Fig.636U Fig.636F of the dispenser.In an emergency,the handle releases and the spring-loaded poppet assembly will close. Important Warning...this valve requires periodic inspection to ensure the shutoff mechanism is operating correctly. Always shutoff the power to the dispenser when changing filters or doing maintenance.This valve is not intended to Fig.636CM be used as a"block valve"and should not be opened under pressure.Opening under pressure can damage or Sizes available distort internal components. 1'h"x 1 W 636F Female connections...unibody Construction Details 1'/2'x 1'h" 636M Male top connection...unibody 116"x 1'/z" 636U Union top connection...unibody Body and shear section...cast iron(epoxy coated) 1'/2'x 172' 636CF Female connections...containment Disc...Viton• 1'/2"x 1'/2' 636CM Male top connection...containment O-rings...Viton• 1'/2"x 1%" 636CU Union top connection...containment Gasket...graphite 2'x 1'/2" 636F Female connections...unibody Shaft...stainless steel 2"x 1'/2' 636M Male top connection...unibody Handle...aluminum 2"x 1'/2" 636U Union top connection...unibody 2"x 1'/2' 636CF Female connections...containment Unibody incorporates U-bolt and post mount bracket 2"x 1'/z" 636CM Male top connection...containment connections with male,female,and union style pipe 2"x 1W 636CU Union top connection...containment threads(NPT)at the outlet(top connection). 2"x 2" 636M Male top connection...unibody Also available with regular and containment style inlet. 2'x 2' 636CM Male top connection...containment (Containment style is made for direct hookup to second- 2"x 2" 636F Female connections...unibody ary containment piping.) 2"x 2" 636CF Female connections...containment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A -41111W_ Vapor Recovery . 1 Used for Stage I Vapor Recovery.Adaptors are installed on the VR riser of UST with coupling connection to fit vapor recovery hose on truck.Various styles available(listed below). Fig 323...aluminum adaptor(threaded). Fig.323B...aluminum adaptor(threaded) with brake interlock mounting pad. (Available without internals). 10 • ' Fig.323C...aluminum cap,cam levers to fit VR adaptors. Lockable with Buna-N gasket and orange powder coat. Fig.323 Fig.323B Fig.323XB...brass adaptor(threaded). Construction Details Fig. Size Weight Body...aluminum (hard-coated) Fig.323 4"adaptor x 3" NPT 3.5 lbs Disc...Buna-N Fig.323 4"adaptor x 4"NPSM 4.25 lbs Stem...plated brass Fig.323B 4"adaptor x 4" NPSM 12.5 lbs Spring...stainless steel Fig.323C 4"Cap 2.0 lbs Viton®available Fig.323XB 4" adaptor x 4" NPSM 12.5 lbs Code Compliance 4" Fig.323 and 4"323XB are CARB approved.4"Fig.323C is Fig.323C CARB EVR approved. CARB approved U Morrison Bros. Co. 800.553.4840 Page 9