AS™- Series - Perma Pure LLC
Contents
1. Stainless Steel Pressure 30 psig 100 psig 120 ___ 200 C 1 4 NPT 1 4 NPT When thumbscrew is replaced with SST Hex Bolt Be sure to connect sample inlet to port marked IN on the scrubber housing PERFORMANCE The Ammonia Scrubber performance varies depending on the concentration of ammonia and flowrate of the gas sample At a flowrate of 1 Ipm and 1ppm of ammonia media should last 40 000 hours BURL SADDLES amp MEDIA THUMB SCREW Figure 2 REPLACING SCRUBBING MEDIA When deposits are visible 75 of the way up the housing the scrubbing media needs to be replaced see Figure 2 Fill housing with 150cc of Berl Saddles tap Unscrew thumbscrew on bottom of housing Swing yoke to one side Separate housing and bottom cap as an assembly from top cap Remove spring Remove old media and dispose of properly hous ing may be rinsed with soapy water to clean hous ing to allow material to settle 7 Pour 50cc of Scrubbing Media 8 9 1 Replace stainless steel screen on top of media Replace spring 0 Clean o rings on shell and inside top manifold replace if necessary 11 Place center tube into o ring seal in top cap 12 Push and twist to seal housing around o ring 13 Replace yoke and tighten thumbscrew finger tight do not overtighten Warning DO NOT overtighten the thumbscrew Doing so may cause the housing to crack HEATER JACKET SET2. PRINCIPLE OF OPERATION AS Series Ammonia Scrubbers remove ammo nia from a gas stream to protect analyzers and sample lines from clogging due to the formation of ammonium salts Ammonia reacts with phosphoric acid forming ammonium phosphate This relatively high melting point salt immediately deposits inside the ammo nia scrubber removing it from the gas stream The reaction is quite selective and does not affect the concentrations of other gases in the steam Figure 1 Flow Schematic Phosphoric acid is very hygroscopic so it will draw water from the gas stream creating some liquid phosphoric acid solution in the bottom of the scrubber To avoid excess liquid formation the scrubber should be heated either by installation in a heated enclosure or by using a heated scrubber The AS Series proprietary scrubber media has been formulated for continuous operation Its life expectancy is dependent upon the sample flow rate and ammonia concentration in the gas stream It is very selective in its reactions with the gas removing only ammonia It is also a very safe stable chemical to handle and store AS is a trademark of Perma Pure LLC Bulletin 250 AS Series Ammonia Scrubber H EPERMA PURE User Manual 8 Executive Drive Toms River N J 08755 Phone 800 337 3762 732 244 0010 Fax 732 244 8140 e mail info permapure com Web Site www permapure com AMMONIA SCRUBBER SPECIFICATIONS Polysulfone
3. UP Shoulder Screw Jacket Yoke Thumbscrew Figure 2 Power Supply Connection for Heater Jacket 1 Connect 120 240VAC power supply to wires on scrubber note white wire must be capped with wire nut since voltage is present when heater is energized in 240VAC operation 2 Allow heater jacket to run for 15 20 minutes before starting sample flow heater is equipped with thermocouple and thermostat to regulate heater REPLACEMENT PARTS Part Number Description Stainless steel top amp bottom with polysulfone shell Stainless steel top amp bottom with stainless steel shell O ring replacement set AS 200 08 EB 115 filling reolacement burl saddles and media
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