32 EASIER CARTRIDGE CHANGE The horizontal filter/separator design provides more convenient access to the cartridges than the vertical design. EFFLUENT CLEANLINESS A horizontal filter/separator must be drained to change the elements. This prevents the possibility of getting dirt in the effluent that can occur if the operator does not fully drain a vertical vessel when changing elements. The separator mounting holes on a horizontal vessel are in a vertical plane at the top of the vessel so it is nearly impossible to get dirt in the effluent when cartridges are being changed. TESTEDANDAPPROVED* VESSELS Parker Velcon HV-xxxx225 Series Horizontal Filter/Separators are qualified to USAF Specification 15880. This specification is similar to EI 1581, Fifth Edition, Category M. These vessels incorporate one piece threaded base coalescer elements for easy, reliable installation and reusable one piece Teflon® coated screen separators. SPECIFICATIONS 225 psi ASME Code & EI 1596 Construction RF Flanged Connections Swing Bolted Closure Buna-N O-Ring Cover Seal EI 1541 Epoxy Coated Interior, Primed Exterior STANDARD ACCESSORIES In compliance with USAF Specification 15880, the following accessories are recommended for safe, effective operation: Automatic Air Vent with Check Valve Pressure Relief Valve** Direct Reading Differential Pressure Gauge Sampling Probes with Ball Valves Stainless Steel Ball Valve Manual Drain Sight Gauge with Ball Checks and Colored Density Sensitive Ball ASME Code Stamp API Nameplate ** Does not meet Mil-V-11201 OPTIONAL ACCESSORIES Interface Control Water Slug Control Valve These optional accessories may be supplied directly by the control valve manufacturer, depending on purchase specifications. Horizontal Filter/Separator Vessels for Fixed Installations at Military Facilities HV-xxxx225 Series Meeting USAF Filter/Separator Specifications Section 15880 * Approval letters are available upon request. Teflon® is a registered trademark of E.I. du Pont de Nemours & Co., Inc.
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