Emerson 627W Instruction Manual

Types 627W and 627WHD102504X012Instruction ManualForm 5447March 2009www.emersonprocess.com/regulatorsTypes 627W and 627WH Direct-Operated Pressure Red

Types 627W and 627WH103633303124372346191514 17 16 11 12 10 139218454451835 34 32 29Figure 5. Type 627W Regulator Assembly34B7395APPLY LUBRICANTPARTS

Types 627W and 627WH1136333024372346191514 17 16 11 12 10 139218454455018515229323435Figure 6. Type 627WH Regulator Assembly37B9752APPLY LUBRICANTPAR

Types 627W and 627WHThe Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective own

Types 627W and 627WH21. The pressure/temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded.Spec

Types 627W and 627WH3W6305-1DETAIL OF TYPE 627WH WITH INTERNAL DOWNSTREAM PRESSURE REGISTRATIONW6306-1DETAIL OF TYPE 627W WITH INTERNAL DOWNSTREAM PRE

Types 627W and 627WH4!WARNINGPrinciple of OperationThe Type 627W or 627WH (refer to Figure 2) is a direct-operated regulator. On the internal registr

Types 627W and 627WH5Table 2. Maximum Inlet Pressure, Differential Pressure, and Outlet Pressure RangesTYPE OUTLET PRESSURE RANGE, SPRING PART NUMBER

Types 627W and 627WH6Table 3. Outlet Pressure RangesTYPESPRING RANGECOLOR SPRING PART NUMBERSPRING FREE LENGTH, INCHES (mm)SPRING WIRE DIAMETER, INCH

Types 627W and 627WH7!WARNINGTable 6. Maximum Torque ValuesKEY NUMBER(1)DESCRIPTION FOOT POUNDS NEWTON METERS2 Orice 25 343 Cap Screw (with ductile

Types 627W and 627WH8 5. Remove and inspect the stem O-ring (key 11) and replace if necessary. Also inspect and if necessary replace

Types 627W and 627WH9Table 7. Body (Key 1)END CONNECTION STYLE BODY MATERIAL NPS 3/4 NPS 1 (DN 25) NPS 2 (DN 50)NPTDuctile Iron (Type 627W only) 30B3