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Form Title: 

Document #: 

INSTALLATION AND MAINTENANCE MANUAL 

MM-PRV005 

(Form: DEF-006A-3) 

Revision: 

0

 

Document Title: 

Date: 

Inbreathing Vacuum Vent

 

Jun. 20, 2022 

Page:

 

1 of 8

 

 

Betts Industries Inc.   

   814·723·1250   

   1800 Pennsylvania Ave. West   

   Warren, PA 16365   

   

www.BettsInd.com

 

 

Print Date: 6/20/2022   

This form is considered uncontrolled 24 hrs. after print date.

 

 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PART NUMBERS

 (

Including, but not inclusive) 

 

6234AL 

6234AL277 

6234ALB 

6234ALFS 

6234ALP 

6234ALTS 

 
 
 

 

 
 
 
 

 

 

Table of Contents: 

1.0  General 
2.0  Parts List 
3.0  Description and Intended Use 
4.0  Installation 
5.0  Inspection and Testing 
6.0  Disassembly and Rebuild Instructions 
7.0  Trouble Shooting Guide

 

 

 

Содержание 6234AL

Страница 1: ...nia Ave West Warren PA 16365 www BettsInd com Print Date 6 20 2022 This form is considered uncontrolled 24 hrs after print date PART NUMBERS Including but not inclusive 6234AL 6234AL277 6234ALB 6234AL...

Страница 2: ...ty goggles face shields protective suits and respirators It is the responsibility of the person company working on this equipment to identify the hazardous products that the equipment has been exposed...

Страница 3: ...sidered uncontrolled 24 hrs after print date 2 0 Parts List 6234 No Description Material Part No 1 Vent Body Aluminum 3639AL 2 Retainer Plate Aluminum 3479AL 3 Retainer Ring Stainless Steel 9Q4987 4 S...

Страница 4: ...ng product when the manhole closed Vacuum Set 25 psig 1 7 kPa to 375 psig 2 6 kPa Vacuum Venting Capacity 4 000 SCFH 1psig Part Numbers 6234AL Aluminum body with FKM Type A seals 6234ALB Aluminum body...

Страница 5: ...ve Inspect the seat of the Vent Body 1 for corrosion in the area it contacts the Seat O ring 6 Replace if necessary 5 1 6 Inspect the Mounting O ring 7 for wear or damage Replace if necessary 5 2 DOT...

Страница 6: ...ughly dry the entire valve after test is complete 6 0 Disassembly and Rebuild Instructions 6 1 Remove the Retaining Ring 3 using a flat head screwdriver See figure 5 6 2 Remove the Retainer Plate 2 6...

Страница 7: ...great care during install as to not kink scratch or damage in any way PTFE encapsulated O rings are not resilient to damage and must be free of any debris such as dirt sand or rust particles 6 12 Lub...

Страница 8: ...eplace mating mounting surface Pressure leaks past Poppet Seat O ring Damaged or worn Seat O ring 6 Replace Seat O ring 6 Damaged or pitted sealing surfaces Replace Vent Body 1 Replace Poppet 5 Spring...

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