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CHILLED WATER PIPE SIZING AND TR 1/8" 0.16 0.0667 2.52 0.9 1/4" 0.31 0.1292 2.06 0.96 3/8" 0.72 0.3 2.48 1.21 1/2" 1.4 0.5833 2.5 1.48 3/4" 3 1.25 2.58 1.8 1" 5.6 2.3333 2.44 2.08 1 1/4" 12 5 2.53 2.57 1 1/2" 18 7.5 2.49 2.84 2" 35 14.583 2.46 3.35 2 1/2" 56 23.333 2.44 3.75 3" 102 42.5 2.53 4.43 4" 208 86.667 2.49 5.24 6" 617 257.08 2.5 6.85 8" 1275 531.25 2.5 8.18 10" 2320 966.67 2.5 9.44 12" 3525 1468.8 2.25 10 14" 4300 1791.7 2 10 16" 5700 2375 1.7 10 18" 7280 3033.3 1.46 10 20" 9070 3779.2 1.28 10 24" 13230 5512.5 1.02 10 26" 15600 6500 0.93 10 28" 18180 7575 0.85 10 30" 20950 8729.2 0.78 10 32" 32900 13708 0.72 10 * 2008 ASHRAE Handbook—HVAC Systems and Equipme ** 2008 ASHRAE Handbook—HVAC Systems and Equipm PIPE* inch FLOW gpm* PRESSURE LOSS* ft/100 ft VELOCITY ft/s*

Gpm and Pipe Size for Chilled Water

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Chilled water

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pipe sizeCHILLED WATER PIPE SIZING AND FLOW RANGE GPM

PIPE* inchFLOW gpm*TRPRESSURE LOSS* ft/100 ftVELOCITY ft/s*HANGER SPACE** meterROD * inchROD ** mm1/8"0.160.06666666672.520.92.11/4"6.41/4"0.310.12916666672.060.962.11/4"6.43/8"0.720.32.481.212.11/4"6.41/2"1.40.58333333332.51.482.11/4"6.43/4"31.252.581.82.11/4"6.41"5.62.33333333332.442.082.11/4"6.41 1/4"1252.532.572.73/8"101 1/2"187.52.492.842.73/8"102"3514.58333333332.463.3533/8"102 1/2"5623.33333333332.443.753.43/8"103"10242.52.534.433.73/8"104"20886.66666666672.495.244.31/2"136"617257.08333333332.56.855.21/2"138"1275531.252.58.185.85/8"1610"2320966.66666666672.59.446.13/4"1912"35251468.752.251077/8"2214"43001791.66666666672107.61"2516"570023751.7108.21"2518"72803033.33333333331.46108.51 1/4"3220"90703779.16666666671.28109.11 1/4"3224"132305512.51.021026"1560065000.931028"1818075750.851030"209508729.16666666670.781032"3290013708.33333333330.7210

* 2008 ASHRAE HandbookHVAC Systems and Equipment (IP)** 2008 ASHRAE HandbookHVAC Systems and Equipment (SI)

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