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Seiho's popular SpotDiffuser is now available with the Condensation Control Air Guide - PK-K! The PK-K's Air Guide is designed to lead the air to the diffuser's outer surface, and help reduce the area where condensation may occur. The Air Guide is made of low thermal conductance material with the dual airflow design (Patent Pending). The PK-K is virtually condensation-free and is perfect for high humidity areas such as gyms, kitchens and food processing facilities. Material  SpotDiffuser: Heavy-Gage Anodized Aluminum  Air Guide: ABS Resin Finish  SpotDiffuser: Anodized  Air Guide: Gray  (Custom Colors Available) Sizes  8" 10" 12" 12"WIDE 16", 20" Applications Kitchens Restaurants Sports Facilities Food Processing Ships Laundry Facilities Chemical Manufacturing Coastal Projects  PK-K Download  Catalog  Submittal Sheet (Inch / Metric)  Performance Data (Inch / Metric)  High Resolution Picture

Features Condensation Performance Chart The Condensation Performance Chart illustrates the condensation threshold for Models PK8K through PK16K. No condensation occurs at any point below the curves. At Room Temperature 79 degrees F and supply air temperature 57 degrees F, For Standard PK Models: Condensation occurs when the relative humidity exceeds 53%. For Anti-condensation PK-K Models: Condensation does not occur until the relative humidity reaches 65%. (PK20K Drip TestÅj As for Model PK20K, at neck velocity 985 fpm, condensation occurs under the following conditions: - Room Temperature: 79 degrees F - Supply Air Temperature: 57 degrees F - Relative Humidity: 65% (Dew Point: 66 degrees F) However, no drip is observed after a prolonged period of 24 hours. At neck velocity 1575 fpm, no drip is observed for 6 hours. Condensation Testing  Size: #10  Room Temperature: 79F  Supply Air Temperature: 52F  Relative Humidity: 57%  Dew Point: 62F  Neck Velocity: 2000FP  SpotDiffuser with Condensation Control Air Guide  SpotDiffuser without Condensation Control Air Guide PK-K Airflow Smoke Pattern Test

Model PK-K Dimensions (PDF Version) MODEL DUCT SIZE PK SIZE A B C D E F G H PK 8K 8 3/16 PK 8 9 1/8 7 7/8 9 27/32 8 1/32 1 23/32 5 3/8 3 7 1/8 PK10K 11 1/32 PK10 11 31/32 10 1/2 12 3/4 10 7/8 1 23/32 7 1/4 4 9/16 9 7/32 PK12K 12 17/32 PK12 13 15/32 12 14 9/32 12 3/8 2 15/32 8 1/2 5 1/8 10 31/32 PK12WK 12 17/32 PK12 WIDE 13 15/32 12 14 9/32 12 3/8 2 15/32 8 1/16 6 9/32 10 7/16 PK16K 16 23/32 PK16 17 3/4 16 5/32 18 1/2 16 1/2 3 5/8 10 7/8 7 1/4 14 1/2 PK20K 19 1/8 PK20 20 1/8 18 1/2 21 1/16 18 27/32 3 3/4 13 5/32 921/32 16Å@29/32 Dimensions are in inches. Product information is Subject to Change Without Notice

Performance Data (PDF Version) SIZE Nozzle Area Nozzle Velocity (fpm) 400 600 800 1000 1200 1400 1600 1800 2000 PK8K Dia. 2.99in 0.0484sq.ft. CFM 27 41 56 71 85 100 115 130 144 Ps 0.01 0.02 0.04 0.06 0.10 0.13 0.17 0.22 0.27 Throw (Vt=@100fpm) 5 8 10 12 15 18 20 23 26 Throw (Vt=@50fpm) 8 12 16 20 24 29 33 37 41 NC - - - - 21.2 27.5 32.7 37.1 40.8 PK10K Dia. 4.528in 0.112sq.ft. CFM 59 89 118 148 177 207 236 266 295 Ps 0.01 0.02 0.04 0.06 0.09 0.12 0.16 0.20 0.25 Throw (Vt=@100fpm) 7 11 15 18 22 26 31 34 39 Throw (Vt=@50fpm) 12 17 24 30 36 42 48 55 62 NC - - - - 19.3 25.0 30.3 34.4 37.9 PK12K Dia. 5.315in 0.154sq.ft. CFM 77 118 159 200 241 283 324 365 406 Ps 0.01 0.02 0.04 0.06 0.09 0.12 0.16 0.21 0.26 Throw (Vt=@100fpm) 9 13 17 22 26 31 36 40 45 Throw (Vt=@50fpm) 14 20 27 35 41 49 57 64 72 NC - - - - 19.5 24.9 30.2 34.3 38.1 PK12WK Dia. 6.102in 0.203sq.ft. CFM 100 153 206 259 312 365 418 471 524 Ps 0.01 0.02 0.04 0.06 0.09 0.12 0.16 0.20 0.25 Throw (Vt=@100fpm) 10 15 20 25 30 36 41 46 51 Throw (Vt=@50fpm) 16 24 32 40 48 57 66 74 82 NC - - - - 21.3 27.4 32.3 36.0 39.1 PK16K Dia. 7.32in 0.292sq.ft. CFM 153 236 318 401 483 565 648 730 813 Ps 0.01 0.02 0.03 0.05 0.08 0.11 0.14 0.18 0.22 Throw (Vt=@100fpm) 11 17 22 28 33 40 46 51 56 Throw (Vt=@50fpm) 18 28 36 45 54 64 73 82 91 NC - - - 18.2 25.4 31.6 36.1 39.9 43.4 PK20K Dia. 9.65in 0.507sq.ft. CFM 253 386 518 650 783 915 1048 1180 1313 Ps 0.01 0.02 0.03 0.05 0.08 0.11 0.14 0.17 0.21 Throw (Vt=@100fpm) 13 20 27 33 40 47 53 60 66 Throw (Vt=@50fpm) 21 32 43 53 64 74 85 95 106 NC - - - 18.7 25.8 32.0 36.5 40.4 43.9 DASHED LINE IN NC BOX INDICATES NOISE LEVEL IS LESS THAN 20. *Seiho International reserves the right to make changes without prior notice. *This performance data is proprietary to Seiho International, Inc., and shall not be used except as expressly authorized by the company.