Flow Level Temperature deltacnt.com | Flow & Accessories > Model 621 | 217 MODEL EXAMPLE 621 - - - - - - - - YCY A 1"FPTY AA MODEL WETTED MATERIAL¹,² OUTPUT SWITCH³ OPTIONS⁴ PROCESS CONNECTION OPTIONS4 DESCRIPTION AA None CS Custom flow setpoint VU Vertical upflow (increases minimum set point by 20%) SH Stainless steel housing TS Terminal strip REQUIRED ORDERING INFORMATION: • Detailed model number • Detailed application number • Tag or nameplate detail (if required) • Documentation & testing packages (if required, refer to the Additional Resources section) Notes: 1a LCY, SCY, & YCY with process connections less than 1.5 in utilize 300 Stainless Steel trim & paddle 1b LCY, SCY, & YCY with process connections 1.5 in or larger utilize 400 Stainless Steel trim & 316 Stainless Steel paddle 2 YYY only available with 1.5 in or larger process connections 3 C and H switches not available with YYY 4 A hyphen will separate multiple options selected (continued from previous page) PROCESS CONNECTION DESCRIPTION AVAILABLE TYPES 0.5”FPTY 0.5 in FPT, 316 Stainless Steel YCY, YYY 0.75”FPTY 0.75 in FPT, 316 Stainless Steel YCY, YYY 1”FPTY 1 in FPT, 316 Stainless Steel YCY, YYY 1.5”FPTY 1.5 in FPT, 316 Stainless Steel YCY, YYY 2”FPTY 2 in FPT, 316 Stainless Steel YCY, YYY 2.5”FPTY 2.5 in FPT, 316 Stainless Steel YCY, YYY 3”FPTY 3 in FPT, 316 Stainless Steel YCY, YYY 4”FPTY 4 in FPT, 316 Stainless Steel YCY, YYY 0.5”150RY 0.5 in Class 150 raised face flange, 316 Stainless Steel YCY, YYY 0.75”150RY 0.75 in Class 150 raised face flange, 316 Stainless Steel YCY, YYY 1"150RY 1 in Class 150 raised face flange, 316 Stainless Steel YCY, YYY 1.5"150RY 1.5 in Class 150 raised face flange, 316 Stainless Steel YCY, YYY 2"150RY 2 in Class 150 raised face flange, 316 Stainless Steel YCY, YYY 2.5"150RY 2.5 in Class 150 raised face flange, 316 Stainless Steel YCY, YYY 3"150RY 3 in Class 150 raised face flange, 316 Stainless Steel YCY, YYY 4"150RY 4 in Class 150 raised face flange, 316 Stainless Steel YCY, YYY