Technical Knowledge | What Does Each Digit on the Barcode of an Electrofusion Fitting Mean?
barcode digits 9 4 1612 3 9 155 3 40 3577 080 11 5What does each digit on the barcode of an electrofusion fitting mean?
PE Electrofusion Fitting Barcode Bit-by-Bit Parsing 941612391553403577080115
Position Digit(s) Interpretation 1 9 Scheme flag: Scheme B (includes cooling time expression); under this scheme the trademark occupies only positions 3-6 2 4 Fitting type: Tapping tee 3-4 1 6 Trademark 1st letter = 16 = P; position 3 also indicates the energy correction method; value 1 < 3 means offset +0, apply time/energy correction using the value of positions 19-21 5-6 1 2 Trademark 2nd letter = 12 = L (manufacturer trademark abbreviation "PL"); position 5 offset = 0, uniform (consistent) fusion cycle 7 3 Includes cooling time indication; the time value is expressed in positions 19-21 (time-controlled fusion) 8 9 Cooling time code 9 = per manufacturer's instructions (not within the standard 5/10/15/20/30/45/60/75/90 min steps) 9-11 1 5 5 Size code 155; a tapping tee is a dual-diameter fitting, per D = C1 x 31 + C2 giving 5 x 31 + 0, i.e. main pipe 63 mm / branch 20 mm 12 3 Constant-voltage (U) control mode + standard correction K + decimal position of the resistance value (hundredths, i.e. 0.01 ohm) 13-14 4 0 Fusion voltage 40 V 15-17 3 5 7 Nominal heating wire resistance 3.57 ohm (decimal position determined by position 12) 18 7 Resistance tolerance +/-24% (Table A.12) 19-21 0 8 0 Fusion (heating) time 80 s 22 1 Energy temperature correction code for temperatures below 20 degC (positive direction); not within the valid steps 2-9 of Table A.15, regarded as not enabled 23 1 Energy temperature correction code for temperatures above 20 degC (negative direction); not within the valid steps 2-9 of Table A.15, regarded as not enabled 24 5 Check digit (checksum); the welding machine uses it to verify that the entire string is read correctly On-site Verification Points