Emerson Fisher Accu-Pressure Y693 Instruction Manual
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Emerson Fisher Accu-Pressure Y693 Instruction Manual

Gas blanketing regulator
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Instruction Manual
Form 5342
March 2015
Type Y693 Gas Blanketing Regulator
Introduction
WaRnInG
!
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,
fire and/or chemical contamination
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
manufacturer's 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.
Installation, operation and maintenance
procedures performed by unqualified
personnel may result in improper
W6200
Figure 1. Type Y693 Gas Blanketing Regulator
www.fisherregulators.com
adjustment and unsafe operation. Either
condition may result in equipment
damage or personal injury. Use qualified
personnel when installing, operating and
maintaining the Type Y693 regulator.
Scope of the Manual
This instruction manual includes installation, startup,
maintenance and parts information for the Type Y693
Gas Blanketing Regulator (Figure 1).
Product Description
The Accu-Pressure
Type Y693 Gas Blanketing
™
Regulator (Figure 1) is a pressure reducing
regulator with external registration requiring a
downstream control line. It is used for accurate
pressure control on pressure blanketing systems.
The regulator will help in controlling emissions
from the blanketed product and helps in protecting
against any contamination to the blanketed product
by atmospheric conditions.
Type Y693

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Summary of Contents for Emerson Fisher Accu-Pressure Y693

  • Page 1 Type Y693 Instruction Manual Form 5342 March 2015 Type Y693 Gas Blanketing Regulator W6200 Figure 1. Type Y693 Gas Blanketing Regulator Introduction adjustment and unsafe operation. Either WaRnInG condition may result in equipment damage or personal injury. Use qualified Failure to follow these instructions or personnel when installing, operating and to properly install and maintain this maintaining the Type Y693 regulator.

  • Page 2: Specifications

    Type Y693 Specifications The Specifications table lists specifications for the Type Y693 Gas Blanketing Regulator. Specifications for a given regulator as it originally comes from the factory are stamped on the spring case nameplate. Body Sizes and End Connection Styles Material Temperature Capabilities nitrile (nBR): -20 to 180°F / -29 to 82°C NPS 1-1/2 and 2 NPT, ASME CL150 and CL300...
  • Page 3 Type Y693 Key numbers referenced in this section are shown in TYPE Y693 Figures 3, 4 and 5. VEnT VEnT 1. Use qualified personnel when installing, operating BlOCK ValVE ValVE ValVE and maintaining the regulator. Before installing, inspect the regulator for any shipment damage or foreign material that may have collected during crating and shipment.

  • Page 4: Startup And Adjustment

    The regulator will go into or the requirements of local, state and federal immediate operation. To ensure correct operation regulations. Due to the care Emerson™ takes in always use a pressure gauge to monitor the meeting all manufacturing requirements (heat treating, blanket pressure when making adjustments.
  • Page 5 Type Y693 Body area Maintenance Procedures 3. Inspect the disk (key 99) for nicks, cuts and other damage. Unscrew the machine screw (key 12) and replace the disk with a new part if necessary. For the Aluminum lower casing version only: Install the new disk, disk washer and machine Key numbers are referenced in Figure 4.
  • Page 6 Type Y693 To Disassemble and Reassemble 11. Install the lever assembly (key 49) into the stem (key 13) and insert the clevis pin (key 10) and cotter Diaphragm Parts: pin (key 14). Secure the lever assembly (key 49) For the aluminum lower casing version only: with the machine screws (key 11).

  • Page 7: Parts Ordering

    Type Y693 2. Remove the hex nuts (key 22), cap screws 13. Always use a new lower diaphragm plate gasket (key 21) and spring case (key 23). (key 31). Install the parts on the pusher post in the order listed below: 3.
  • Page 8 Type Y693 34B4869-A 34B4867-A 34B4832-B OnlY USED WITH THE FOllOWInG OnlY USED WITH THE FOllOWInG OnlY USED WITH GREEn STRIPE COnTROl SPRInGS: COnTROl SPRInGS: 2 TO 5.5 psig / 138 mbar to 0.4 bar anD BROWN—0.5 TO 2 IN. W.C. / 1 to 5 mbar DaRK BlUE—1 TO 2 psig / 69 to 138 mbar SIlVER —...

  • Page 9: Parts List

    Type Y693 VIEW B aPPlY lUBRICanT 54B2264-B Figure 4. Type Y693 Regulator, Aluminum Lower Casing Version (continued) Parts list Description Part number Pusher Post, Stainless steel 1L143311992 In this parts list, parts marked NACE are intended Lower Casing Assembly, Aluminum 1H9751X0022 10* Clevis Pin, Plated steel 14B2155X012...
  • Page 10 Type Y693 COnTROl lInE COnnECTIOn SECTIOn VIEW B aPPlY lUBRICanT 54B2266-B Figure 5. Type Y693 Regulator, Steel or Stainless Steel Lower Casing Version...
  • Page 11 Type Y693 Description Part number Description Part number Body (continued) Diaphragm Plate Gasket, Composition 1A348704022 CL300 RF Pusher Post NPS 1-1/2 / DN 40 14B4053X032 Stainless steel 0Y096435072 NPS 2 / DN 50 14B4053X042 Stainless steel (NACE) 0Y096435072 EN PN 16, 25 and 40 RF Flanged Lever Assembly NPS 1-1/2 / DN 40 14B4053X052...
  • Page 12 For further information visit www.fisherregulators.com The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC, a business of Emerson Process Management.

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