Service Fixture Indexing

WaterSaver faucets and valves are furnished with either a forged brass or molded nylon handle. Handles have a raised screw-on colored index button permitting visibility of index color from top and all sides. Color-coding and symbol standards for index buttons are as follows:
Standard Indexing   Index Color   Letter Color   Symbol
Air   Orange   Black   AIR
Carbon Dioxide   Pink   Black   CO2
Cold Water   Green   White   CW
Deionized Water   White   Black   DI
Distilled Water   White   Black   DW
Gas   Blue   White   GAS
Hot Water   Red   White   HW
Hydrogen   Pink   Black   HYD
Nitrogen   Brown   White   NIT
Oxygen   Lt. Green   Black   OXY
Steam   Black   White   STM
Vacuum   Yellow   Black   VAC
             
Other Indexing   Index Color   Letter Color   Symbol
Acetylene   Violet   White   C2H2
Acetylene   Violet   White   ACET
Ammonia   Lt. Green   Black   NH3
Argon   Violet   White   AR
Aspirator   Green   White   ASP
Butane   Lt. Blue   Black   BUT
Carbon Monoxide   Silver   Black   CO
Chilled Water   Green   White   CH WAT
Chilled Water Supply   Green   White   CHWS
Chilled Water Supply   Green   White   CWS
Chilled Water Return   Green   White   CHWR
Chilled Water Return   Green   White   CWR
Compressed Air   Orange   Black   CA
Cylinder Gas   Lt. Blue   Black   CYL GAS
Glycol Supply   Lt. Green   Black   GYL SUP
Glycol Return   Lt. Green   Black   GYL RET
Helium   Black   White   HE
High Vacuum   Yellow   Black   HI VAC
High Vacuum   Yellow   Black   HVAC
Hydrogen   Pink   Black   H2
Hydrogen   Lt. Blue   Black   H
Hydrogen   Lt. Blue   Black   H2
Hydrogen   Lt. Blue   Black   HYD
Hydrogen Sulphite   Black   White   H2S
Ice Water   White   Black   IW
Industrial Cold Water   Green   White   ICW
Industrial Hot Water   Red   Red   IHW
Isobutene   Silver   Black   ISO
Lab Air   Orange   Black   LA
Lab Gas   Blue   White   LG
Lab Vacuum   Yellow   Black   LV
Low Vacuum   Yellow   Black   LO VAC
Low Vacuum   Yellow   Black   LVAC
Methane   Lt. Blue   Black   CH4
Natural Gas   Blue   White   NAT GAS
Nitrogen   Gray   Black   NIT
Nitrogen   Gray   Black   N2
Nitrogen   Brown   White   N
Nitrogen   Brown   White   N2
Nitrogen (Cylinder)   Brown   White   NC
Nitrogen (Dewar)   Brown   White   ND
Nitrous Oxide   Lt. Green   Black   N2O
Oxygen   Lt. Green   Black   O2
Phosphorus   Tan   Black   P
Process Water   Green   White   PW
Propane   Pink   Black   PRO
Purified Water   White   Black   PW
Reverse Osmosis   White   Black   RO
Special Gas   Lt. Blue   Black   SG
Sulphur Dioxide   Tan   Black   SO2
Tempered Water   Green   White   TW