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Bulletin 71.3:Y692VB

June 2009

D102663X012

Introduction

The Y692VB Series direct-operated vacuum breakers

are used for the precise control of small capacity and

low-pressure service applications where an increase

in vacuum must be limited. The Type Y692VB has

internal pressure registration. The Type Y692VBM has

a control line connection and an O-ring stem seal to

block the throat for external pressure registration.

Features

  

Large diaphragm area provides more accurate

control at low-pressure settings.

  Four-position vent

mounting and 360° adjustability of the union nut

connection permit exibility in vent positioning and

installation in awkward positions or limited spaces.

  Constructions are

available in a variety of materials for compatibility

with corrosive process gases.



W7429

Figure 1. Type Y692VB Vacuum Breaker

Summary of content (8 pages)

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Bulletin 71.3:Y692VB June 2009 Y692VB Series Vacuum Breaker W7429 Figure 1. Type Y692VB Vacuum Breaker Introduction Features The Y692VB Series direct-operated vacuum breakers are used for the precise control of small capacity and low-pressure service applications where an increase in vacuum must be limited. The Type Y692VB has internal pressure registration. The Type Y692VBM has a control line connection and an O-ring stem seal to block the throat for external pressure registration.
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Bulletin 71.
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Bulletin 71.3:Y692VB Type Y692VB Type Y69 VACUUM VACUUM PUMP PUMP VACUUM VACUUM BEINGLIMITED LIMITED BEING VACUUM PUMP VACUUM BEING LIMITED TYPE Y692VB VACUUM BREAKER INLET PRESSURE CONTROL PRESSURE (VACUUM) ATMOSPHERIC PRESSURE B2579 INLET PRESSURE INLET PRESSURE CONTROL PRESSURE (VACUUM) CONTROL PRESSURE (VACUUM) ATMOSPHERIC PRESSURE ATMOSPHERIC PRESSURE POSITIVE PRESSURE, ATMOSPHERE, OR A LESSER VACUUM THAN THE VACUUM BEING LIMITED B2579 Figure 2.
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Bulletin 71.3:Y692VB Table 1. Body Sizes and End Connection Styles CONSTRUCTION MATERIAL AND END CONNECTION STYLE(1) BODY SIZE, NPS (DN) Cast Iron Steel or Stainless Steel Hastelloy® C 1-1/2 (40) NPT 2 (50) NPT or CL125 FF NPT, SWE, CL150 RF, CL300 RF, or PN 16/25/40 NPT or CL150 RF 1. All flanges are welded on to the body and have a face-to-face dimension of 14-inches (356 mm). Table 2.
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Bulletin 71.3:Y692VB Table 5. Y692VB Series Capacities (based on atmospheric inlet pressure) Vacuum CONTROL PRESSURE RANGE vacuum CONTROL Pressure SETTING 1 to 3-inches w.c. (2 to 7 mbar) 1.5 to 5-inches w.c. (4 to 12 mbar) 3 to 8-inches w.c. (7 to 20 mbar) 8 to 16-inches w.c. (20 to 40 mbar) 16 to 32-inches w.c. (40 to 80 mbar) 0.25 to 3 psig (17 to 207 mbar) Change in Vacuum 2-inches w.c. (5 mbar) 4-inches w.c. (10 mbar) 7-inches w.c. (17 mbar) 1-inch w.c. (2 mbar) 1-inch w.c. (2 mbar) 1-inch w.c.
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Bulletin 71.3:Y692VB 1/4 NPT gauge Tap 9.68 (246) 5.88 (149) 14 (356) 2.94 (75) 10.38 (264) W5930_1 INCHES (mm) 17.44 (443) NPT Dimensions Flanged Dimensions Figure 3. Y692VB Series Dimensions F C E CJ4598-B D Figure 4.
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Bulletin 71.
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Bulletin 71.3:Y692VB Industrial Regulators Natural Gas Technologies TESCOM Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Tescom Corporation USA - Headquarters McKinney, Texas 75069-1872 USA Tel: 1-800-558-5853 Outside U.S. 1-972-548-3574 USA - Headquarters McKinney, Texas 75069-1872 USA Tel: 1-800-558-5853 Outside U.S.