Chemical Processing - April 2008 - (Page 50)

>> EQUIPMENT & SERVICES LARGE DIAMETER BUTTERFLY VALVE MINIMIZES SEAL FRICTION The Type 567 Butterfly Valve in large diameter sizes up to 12 in. is corrosion-resistant and incorporates a double eccentric operating principle that provides improved wear and easier operation. It has an off-center shaft that allows the disc to completely disengage from the disc seal, even when partially open. This is said to reduce seal friction and improve seal wear characteristics, resulting in longer service life, minimal maintenance and better protection against pressure surges. It also lowers the torque required to operate the valve, making for easy manual operation and use of smaller actuators at a significantly reduced cost. And with no gap between the disc and the seal, particles wash away, preventing potential build-up that can obstruct flow. GF Piping Systems (800) 854-4090 www.gfpiping.com FLOW METER SUITS HAZARDOUS, HARD TO REACH AREAS The ST50 remote mount flow meter is said to deliver exceptional performance, installation versatility and economy in air, compressed air or nitrogen and a variety of other processes gases, as well as plant HVAC systems. Featuring a highly intelligent, no-moving parts thermal mass flow sensor design, the flow meter measures air flow from 1 to 125 SFPS (0.3 to 38 NMPS) , nitrogen from 1 to 150 SFPS (0.3 to 46 NMPS) and compressed air from 4 to 400 SFPS (1.2 to 122 NMPS). Accuracy is +1% of reading, +0.5% of full scale, with repeatability of +0.5% of reading. It operates at temperatures from 40°F to 100°F (4°C to 38°C). Fluid Components International (800) 854-1993 www.fluidcomponents.com ISOLATION VALVE KEEPS HEATED PARTICLES OUT The Type IVE mechanical isolation valve guards against the passage of hot particles, glowing embers and flames through interconnecting piping that may ignite a deflagration or a fire from one vessel to the next. The valve remains open until receiving a signal from either a pressure responder or optical sensor that detects hot particles, embers, and flames. The valve responds quickly, closing in milliseconds. This quick reaction prevents the passage of hot particles, embers, flames or pressure from continuing to flow through the pipeline. BS&B Pressure Safety Management, L.L.C (800) BSB-DISK www.bsbsystems.com FLEXIBLE HOSE ALSO WITHSTANDS HEAT The Super Vac-U-Flex hose is made of high-strength, fiber-reinforced PVC bonded to a coated spring-steel wire helix. Flexible yet tough for easy handling, it bends around corners and withstands service temperatures from -20°F to 150° F. Sold in standard lengths of 25 ft. or 50 ft. with interior diameters of 3 in. or 4 in., it also can be ordered in custom lengths, colors, and diameters from 1¼ in. to 4 in. Cuffed ends and screw-on end fittings are available for easier installation and tighter seals. Other modifications, including wire pitch and wall thickness, are possible to meet specific customer needs. Hi-Tech Duravent (864) 297-2201 www.hitechduravent.com 50 • April 2008 www.chemicalprocessing.com http://www.gfpiping.com http://www.bsbsystems.com http://www.fluidcomponents.com http://www.hitechduravent.com http://www.chemicalprocessing.com

Table of Contents Feed for the Digital Edition of Chemical Processing - April 2008

Chemical Processing - April 2008 Contents From the Editor ChemicalProcessing.com Field Notes In Process Energy Saver Compliance Advisor Is It a Tragedy or Comedy for Engineers? Better Understanding Boosts Mixer Scale-up Don't Err With Air Compressors Control Performance Supervision Enhances Revamp Process Puzzler Plant InSites Equipment & Services Product Spotlight/Classifieds Ad Index End Point

Chemical Processing - April 2008

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