299H SeriesD102684X012Instruction ManualForm 5497January 2014www.sherregulators.com299H Series Pressure Reducing Regulators!WARNINGFailure to follow
299H Series10NoteThe regulator body may remain in the pipeline during maintenance procedures.Main Actuator DiaphragmFollow this procedure to change th
299H Series11KEY 72 - OPTIONAL P590 SERIES FILTERFigure 3. Optional P590 Series FilterA7008Main Body Valve Disk and OriceFollow this procedure to ins
299H Series123. Remove the bonnet (key 34), spring seat (key 33) and control spring (key 32).4. If only replacing the control spring (key 32), spari
299H Series13Parts List299H Series Regulator (Figures 4, 5 and 6)Key Description Part Number Parts Kit (Includes keys 8, 9, 13, 14, 15, 28, 49,
299H Series1425262724 59S161252756 24 26L1Figure 5. 299H Series Interior AssemblyT80391-2T80391-3EXTERNAL REGISTRATIONINTERNAL REGISTRATIONLOCKING DOW
299H Series15252756612426L112 1413 15168 8081 4 5 93 6 711109L2L2 L1L1AL193S23/4 NPTDOWNSTREAMCONTROL LINECONNECTIONT80391-7Figure 5. 299H Series Inte
299H Series1678 20 72 20797920762078S1S1TYPE 67CF PILOTSUPPLY REGULATOR78 20 72 20797920762078S1S1TYPE 67CF PILOTSUPPLY REGULATOR299H SERIES EXTERIOR
299H Series1724 Machine Screw, Steel (2 required) 1B42042898225 Lever Pin, Stainless steel (2 required) 1H97293503226 Lever, Steel T13813T001227
299H Series18Figure 7. Type VSX-2 Assembly (for Types 299HS and 299HSR)T80423VIEW ANOTE: FOR KEYS 12, 13, 17, 82 AND 83, REFER TO 299H SERIES REGULATO
299H Series19TYPE VSX ADJUSTING TOOL USE THIS END FOR UNDERPRESSURE TRIP ADJUSTMENT USE THIS END FOR OVERPRESSURE TRIP ADJUSTMENTFigure 8. Type VSX
299H Series2SpecicationsSpecications for 299H Series constructions are given below. Some specications for a given regulator as it originally comes
299H Series©Emerson Process Management Regulator Technologies, Inc., 1999, 2014; All Rights ReservedThe Emerson logo is a trademark and service mark o
299H Series3Table 2. Outlet Pressure RangesOUTLET (CONTROL)PRESSURE RANGETYPE PILOT CONTROL SPRING299H299HR, 299HS and 299HSRPart Number ColorFree Len
299H Series4Type 299H Internal RegistrationE0070INLET PRESSUREOUTLET PRESSUREATMOSPHERIC PRESSUREJuly 2008Type 299HLOADING PRESSUREOUTLETINLETKGCABEHF
299H Series5Principle of Operation!WARNINGSince a pilot-operated regulator is constructed of both a pilot and a main valve, do not exceed the maximum
299H Series6Once the ball is released, the spring force on the stem will push the stem and disk to the closed position against the seat shutting off a
299H Series7if this regulator is overpressured or is installed where service conditions could exceed the limits for which the regulator was designed o
299H Series8In many instances, it will be necessary to enlarge the downstream piping to keep ow velocities within good engineering practices. Expand
299H Series9(key 36). Turning the adjusting screw clockwise into the spring case increases the controlled or reduced pressure setting. Turning the scr
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