Emerson 299H Instruction Manual

299h series pressure reducing regulators
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Instruction Manual
D102684X012
May 2017
299H Series Pressure Reducing Regulators
!
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or fire causing property damage and
personal injury or death.
Fisher™ regulators must be installed,
operated and maintained in accordance
with federal, state and local codes, rules
and regulations and Emerson Process
Management Regulator Technologies, inc.
(Emerson) instructions.
if the regulator vents gas or a leak
develops in the system, service to the unit
may be required. Failure to correct trouble
could result in a hazardous condition.
Call a gas service person to service the
unit. Only a qualified person must install
or service the regulator.
introduction
Scope of the Manual
This Instruction Manual provides installation,
adjustment and maintenance instructions and parts
ordering information for the 299H Series regulators.
Instructions and parts list for the 67C Series
Instrument Supply Regulators are found in Instruction
Manual D102601X012. Instructions and parts list
for the P590 Series Filters are found in Instruction
Manual D101555X012. Instructions and parts list for
the Type VSX2 slam-shut are found in Instruction
Manual D103695X012. Instructions and parts list for
the Type VSX8 slam-shut are found in Instruction
Manual D103127X012.

Description

The 299H Series pressure reducing regulators provide
a broad capacity of controlled pressure ranges and
capacities in a wide variety of distribution, industrial
and commercial applications. A 299H Series regulator
has a pilot integrally mounted to the actuator casing.
WaRning
Figure 1. 299H Series Pressure Reducing Regulator
The 299H Series regulators can handle inlet pressures
up to 175 psi / 12.1 bar depending on orifice size.
The integral token relief on the Types 299HR and
299HSR regulators is located in the pilot and opens to
relieve minor overpressure.
The Types 299HS and 299HV provide overpressure
or overpressure and underpressure protection
by completely shutting off the flow of gas
to the downstream system. It comes with a
Type VSX2 (299HS) or VSX8 (299HV) slam-shut
device which can be configured for Ovepressure
Shutoff (OPSO) or Overpressure and Underpressure
Shutoff (OPSO/UPSO). The slam-shut device's actions
are independent of the main valve and of variations
to the inlet pressure. The Type VSX2 (299HS) or
VSX8 (299HV) slam-shut device has internal or
external registration. External registration requires a
downstream sensing line.
299H Series

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  Summary of Contents for Emerson 299H

  • Page 1 Figure 1. 299H Series Pressure Reducing Regulator Scope of the Manual The 299H Series regulators can handle inlet pressures up to 175 psi / 12.1 bar depending on orifice size. This Instruction Manual provides installation, The integral token relief on the Types 299HR and...
  • Page 2 2. For optimum performance, a pilot supply regulator may be installed in the pilot supply tubing between the main valve and pilot. 3. A pilot supply regulator or a P590 Series filter (only one may be used, not both) may be ordered with the Type 299H, but not both.
  • Page 3 Table 1. Body Sizes and End Connection Styles BODY MaTERiaL anD EnD COnnECTiOn STYLE BODY SizE, in. / Dn Cast iron (For Types 299H and 299HR only) Ductile iron Steel (For Types 299H and 299HR only) 1-1/4 - - - -...
  • Page 4 3/4 nPT DOWnSTREaM COnTROL LinE inTERnaL COnnECTiOn REgiSTRaTiOn DuaL REgiSTRaTiOn E0070 INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE LOADING PRESSURE TYPE 299H A7272 A7272 TOKEn RELiEF CLOSED TOKEn RELiEF OPEn TYPE 299HR (TOKEn RELiEF DETaiL) Figure 2. 299H Series Operational Schematics...
  • Page 5 During normal operation the Type 299HR performance the diaphragm downward. This motion is transmitted is identical to the Type 299H. If an overpressure through a lever, which pulls the valve disk (K) open, condition occurs, the pilot diaphragm head will allowing inlet pressure to flow through the valve.
  • Page 6 Overpressure Protection if the regulator is exposed to an Like most regulators, the Type 299H has outlet overpressure condition, it should be pressure ratings lower than the inlet pressure ratings. inspected for any damage that may have Complete downstream overpressure protection is occurred.
  • Page 7 To remotely vent the pilot, remove the screwed-in vent To convert the 299H Series regulators from one type of assembly (key 27, Figure 3) from the pilot spring case registration to another, all that is required is adding or and install obstruction-free tubing or piping into the removing screws and O-rings.
  • Page 8 299H Series To convert an external registration regulator to a dual 4. Slowly open the hand valve (if used) in the registration regulator, remove the two screws and control line. The regulator will control downstream O-rings (J in Figure 2) from the throat and use a screw pressure at the pilot control spring setting.
  • Page 9 Keys are referenced in Figure 5. The only adjustment lubricant be applied to all O-rings. Also apply an anti- on a 299H Series regulator is the reduced pressure seize compound to the adjusting screw threads and setting of the pilot control spring (key 32). Remove other areas as needed.
  • Page 10 299H Series 1. Cut the wire seal (key 68) (being careful not to 10. Install the upper casing (key 2) and secure it to the lose the warning tag) and remove the closing cap lower casing (key 1) with the eight hex head screws (key 3).
  • Page 11 299H Series 1. Disconnect the pilot supply tubing (key 21) from 6. The Type 299H has a wire inlet screen (key 51) the main body (key 17). in the pilot supply inlet fitting (key 47). If clogging is suspected in the pilot supply, remove the elbow 2.
  • Page 12 (key 35) and install the closing cap interchangeable with each other. (key 29). Parts List Types VSX2 and VSX8 Maintenance 299H Series Regulator (Figures 3, 4 and 5) Maintenance instructions for the Type VSX2 slam-shut are found in Instruction Manual D103695X012. Description Part number...
  • Page 13 Retaining Ring, Steel 16A6977X012 Valve Stem Assembly 1L1426000A2 Check Valve Assembly T14258T0012 Valve Body Machine Screw, Steel (4 required) T13920T0012 Cast Iron, For Types 299H and 299HR only Inlet Fitting, Aluminum T13824T0012 1-1/4 NPT T40578T0012 Stem Assembly, Aluminum 1H9666T0012 1-1/2 NPT 1J190419012...
  • Page 14 SPRING CASE CLOSING SPRING DIAPHRAGM POST LOCKing DOWn THE SPRing SEaT TO FaCiLiTaTE inSTaLLing THE HEX nuTS T80391-2 EXTERnaL REgiSTRaTiOn T80391-3 inTERnaL REgiSTRaTiOn aPPLY MuLTi-PuRPOSE LuBRiCanT (L1) / MuLTi-PuRPOSE POLYTETRaFLuOROETHYLEnE (PTFE) THREaD SEaLanT (S1) Figure 3. 299H Series Interior Assembly...
  • Page 15 299H Series 3/4 NPT DOWNSTREAM CONTROL LINE CONNECTION T80391 T80391-4 T80391-7 DuaL REgiSTRaTiOn 299H SERiES PiLOT TRiM aPPLY MuLTi-PuRPOSE LuBRiCanT (L1) / anTi-SEizE COMPOunD (L2) / THREaD LOCK SEaLanT (S1) / aDHESiVE (a) Figure 3. 299H Series Interior Assembly (continued)
  • Page 16 299H Series T80391-1 299H SERiES EXTERiOR ViEW Figure 4. 299H Series Exterior Assembly...
  • Page 17 TuBing anD FiTTingS WiTH OPTiOnaL TYPE P590 FiLTER TYPE 67CF PILOT SUPPLY REGULATOR T80391-5 TuBing anD FiTTingS WiTH OPTiOnaL TYPE 67CF PiLOT SuPPLY REguLaTOR aPPLY anTi-SEizE COMPOunD (L2) / MuLTi-PuRPOSE PTFE THREaD SEaLanT (S1). Figure 4. 299H Series Exterior Assembly (continued)
  • Page 18 299H Series TYPE 299H PiLOT WiTHOuT RELiEF VaLVE TYPE 299HR PiLOT WiTH TOKEn RELiEF VaLVE T80391-6 aPPLY anTi-SEizE COMPOunD (L2) / aDHESiVE (a) Figure 5. 299H Series Pilot Assemblies...
  • Page 19 299H Series TYPE VSX2 T80423 Figure 6a. Type VSX2 Assembly (for Types 299HS and 299HSR) TYPE VSX8 TYPE VSX8 Figure 6b. Type 299HV with Type VSX8 Assembly...
  • Page 20 D102684X012 © 1999, 2017 Emerson Process Management Regulator Technologies, Inc. All rights reserved. 05/17. Emerson Automation Solutions The Emerson logo is a trademark and service mark of Emerson Regulator Technologies Electric Co. All other marks are the property of their prospective owners.

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