9826 7TH AVE SE 2025-03-25 - Laserfiche WebLink

Principle of Operation AFL- Discharge Outlet Max. M ax. Max. The valve operates on a buoyancy principle.The ballasted float, OSV Elbovv Valve Valve Pipe Outlet Capacity Capacity which is the only moving part, is weighted for a specified gravity Model Material Size Size Size gpin 1ps of 0.95. In the water,the float will float and keep the valve open,An accumulation of oil around the float will decrease the x`�o �a4 �apVC;'� t Of mrri 4 , y �1rn 46o buoyant force on the float,causing it to float lower in the liquid. OSV-6 PVC 6" 150 mm 6" 150 mm 360 23 As the oil accumulation increases,the float will sink lower and ¢ 8 � 2�q� " _Y 0 finally close the valve when the oil level is approximately 3" (76 OSV 45S Stainless 4" 101 mm 4" 101 mm 160 10 mm)to 4" 001 mm)above the bottom of the float. Steel OSV Operation to 6sS sta mess 6' 150 mj `, The AFL Oil Stop Valve(OSV) by CONTECH is designed for easy, osV 8S5 Stainless 8' 200 mm 8" 200 mm 600 39 efficient operation in confining oil spills to the premises. It is steel used in oil/water gravity differential separators,coalescing type 1 Stainles' 10' 5Q mm 1p5o tnm: 900 57 separators and oil manholes to prevent the entry of oil into the OSV--12SS Stainlessk effluent. .. e1i3 ,.."12" 30o mmY ..._ 12' 300 mm 1400 88 Features of the valve include: steel 1. Dependable gravity operationQ �14$wT' `S�ainle5s �4°F ft�['rr1m 4' 7_{11 rnm''�t60 10 2. Corrosion-resistant construction OSV 6SST Stainless 6" 150 mm 6" 150 mrn 360 23 3. Only one moving part Steel 4. Outlet vent connection (siphon breaker) S�855T Stainles 8" 0p m1n 8" 20 rim 6oQ 39 The valve is available in a variety of sizes to meet a wide range of flow conditions.The valve is supplied as a stand alone device and 0SV-1oSST Stainless 10" 101 mm 10" 101 mm 900 57 can be used in tandem with a CONTECH VortClarex®coalescing steel media separator. SV 12S�T 5f6161�s 121O�mrr� On a case by case basis,valves can be fabricated with a "weep SS--Stainless Steel hole"which facilitates reopening of the valves after closure due SST--Stainless steel extended and is used when designing for fire protection to oil spill.The weep hole equalizes the pressures in the valve and This feature includes an extended pipe through the outlet of the structure,so there is will pass a minimal amount of oil/water mixture.This option is no connection inside the valve structure to melt and fail. only added upon the Engineer's written request. ........... _______._......................... Hydraulic Capacities Table 1.CONTECH AFL-OSV Model Sizes and Peak Flow Capacity A minimum recommended water level, sufficient to completely submerge the float housing, is required for proper operation GeV : PW Pipe of the 05V Operation at less than the minimum recommended ` water level will reduce the capacity of the OSV. The recommended operating flow rate versus its associated ` —— head loss is shown in Figure 1, 2 and 3, For the valve to operate "" properly at required flow(s),the valve discharge pipe centerline must be below the liquid level at a distance equal to(or greater than)the associated head loss.Table 1 indicates the peak flow cg " capacity of each valve size and model, --M-4, WARNING: IF THE VALVE- IS OPERATED AT GREATER THAN DESIGN OR RECOMMENDED FLOWS IT MAY SHUT OFF Ab AUTOMATICALLY, WHICH MAY NECESSITATE THAT THE VALVE $ BE REOPENED MANUALLY. &!I Alp- 1W WA Igo im 140 "a 10 9W FLOW "It(OPAM Figure 1.OSV-4 inch 2