Emerson Fisher Accu-Pressure Y693 Instruction Manual

Emerson Fisher Accu-Pressure Y693 Instruction Manual

Gas blanketing regulator
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Instruction Manual
Form 5342
March 1994
Type Y693 Gas Blanketing Regulator
Introduction
Scope of 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 Regula-
tor (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
W6200
emissions from the blanketed product and helps in
protecting against any contamination to the blanketed
product by atmospheric conditions.
The regulator will maintain a positive vessel pressure
reducing the possibility of vessel wall collapse. The
Type Y693 is available in 1-1/2-inch and 2-inch body
sizes.
Specifications
Table 1 lists specifications for the Type Y693 Gas
Blanketing Regulator. Specifications for a given regula-
tor as it originally comes from the factory are stamped
on the spring case nameplate.
Figure 1. Type Y693 Gas Blanketing Regulator
www.FISHERregulators.com
Type Y693

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Summary of Contents for Emerson Fisher Accu-Pressure Y693

  • Page 1 Type Y693 Instruction Manual Form 5342 March 1994 Type Y693 Gas Blanketing Regulator Introduction emissions from the blanketed product and helps in protecting against any contamination to the blanketed Scope of Manual product by atmospheric conditions. This instruction manual includes installation, startup, The regulator will maintain a positive vessel pressure maintenance, and parts information for the Type Y693 reducing the possibility of vessel wall collapse.
  • Page 2: Specifications

    Type Y693 Specifications Body Sizes and End Connection Styles Material Temperature Capabilities 1-1/2 and 2 inch NPT screwed, Flanged ANSI Nitrile: - 20° to 180°F (- 29° to 82°C) class 150 & 300 (Optional), or DIN class PN 16, Fluoroelastomer: + 40° to 300°F (+ 5° to 149°C) 25, and 40 raised faced flanged (Optional) Elastomeric PTFE: 0°...
  • Page 3 Type Y693 Key numbers referenced in this section are shown in TYPE Y693 figures 3, 4 & 5. VENT VENT BLOCK VALVE VALVE 1. Use qualified personnel when installing, operating, 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

    Type Y693 Startup and Adjustment blanketing regulator remains open in response to the decreasing downstream pressure. If vent valves are not installed, safely bleed off both inlet and outlet pressures, and check that the regulator contains no pressure. To avoid personal injury, property dam- age, or equipment damage caused by Principle of Operation bursting of pressure containing parts or...
  • 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. Install the For the Aluminum lower casing version only: new disk, disk washer, and machine screw (keys 99, 98, &...
  • Page 6 Type Y693 To Disassemble and Reassemble Diaphragm (key 14). Secure the lever assembly (key 49) with the machine screws (key 11). Carefully tighten the machine Parts: screws to a torque of 7 to 9 foot-pounds (9 to 12 N•m). For the Aluminum lower casing version only: 12.
  • Page 7: Parts Ordering

    Type Y693 the diaphragm (key 5) from the attached parts, unscrew 15. Install the assembled parts in the lower casing the spring holder cap screw (key 30) from the pusher (key 20). Make sure that the lever (key 9) fits in the post (key 8).
  • Page 8 Type Y693 34B4869-A 34B4867-A ONLY USED WITH THE FOLLOWING CONTROL SPRINGS: ONLY USED WITH THE FOLLOWING CONTROL SPRINGS: BROWN—0.5 TO 2 INCHES WC (1.2 TO 6.7 MBAR) DARK BLUE—1 TO 2 PSIG (0.07 TO 0.14 BAR) RED—2 TO 5 INCHES WC (1.2 TO 12 MBAR) ORANGE—1.5 TO 3.3 PSIG (0.10 TO 0.23 BAR) BLACK—5 TO 8 INCHES WC (12 TO 19 MBAR) YELLOW—2 TO 5 PSIG (0.14 TO 0.34 BAR)
  • Page 9 Type Y693 SECTION VIEW B APPLY LUB 54B2264-B Figure 4. Type Y693 Regulator, Aluminum Lower Casing Version...
  • Page 10 Type Y693 CONTROL LINE CONNECTION SECTION VIEW B APPLY LUB 54B2266-B Figure 5. Type Y693 Regulator, Steel or Stainless Steel Lower Casing Version...
  • Page 11 Type Y693 Description Part Number Description Part Number Lower Control Spring Seat, plated steel Lubricant - - - - - - - - - - - 0.5 to 32-inches w.c. (1.2 to 78 mbar) springs 14B4240X012 Bias Spring, stainless steel 14B2154X012 1 to 5 psig (0.07 to 0.34 bar) springs 14B4240X012...
  • Page 12 1E4539X0012 Fisher is a mark owned by Fisher Controls International, Inc., a business of Emerson Process Management. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their respective owners.

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