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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

1 2 3 4 5 6 7 8

Résumé du contenu

Page 1

www.emersonprocess.com/regulatorsBulletin 71.3:Y692VBJune 2009D102663X012IntroductionThe Y692VB Series direct-operated vacuum breakers are used for th

Page 2 - Bulletin 71.3:Y692VB

Bulletin 71.3:Y692VB2(1) See Table 1 (2)  

Page 3 - Type Y692VB

Bulletin 71.3:Y692VB3INLET PRESSURECONTROL PRESSURE (VACUUM)ATMOSPHERIC PRESSUREType Y692VBB2579VACUUMBEING LIMITEDVACUUMPUMP

Page 4 - Table 3. Flow Coefcients

Bulletin 71.3:Y692VB4Table 2. Vacuum Control Pressure Ranges and Spring Part Numbers (1)

Page 5 - 

Bulletin 71.3:Y692VB5Note

Page 6 - 

Bulletin 71.3:Y692VB6Figure 4. Spring Case Port LocationCJ4598-BDF(264)17.44(443)2.94(75)(149)(246)W5930_1

Page 7 - 

Bulletin 71.3:Y692VB7* * * Readily Available for Shipment* * Allow Additional Time for Shipment*Special Order, Constructed from Non-Stocked Parts. Co

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