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WARRANTY 

The Warranty for GA Industries valves is 
included in our Terms and Conditions which can 
be found here:  

https://gaindustries.com/terms

  

 
 
 
 
 

2

”x1”, 2” and 3” x 2” Figure 939 Parts List 

 

Item 

Description 

Standard Material 

Body 

Cast Iron 

Cover 

Cast Iron 

Cage* 

316 Stainless Steel 

Seat 

316 Stainless Steel 

Plug 

316 Stainless Steel 

Bushing* 

316 Stainless Steel 

Connector 

316 Stainless Steel 

Cover O-Ring 

Buna-N Rubber 

Renewable Seat 

Buna-N Rubber 

10 

Seat O-Ring 

Buna-N Rubber 

11 

Cover Bolt 

Zinc Plated Steel

 

12 

Float Ball 

316 Stainless Steel

 

13 

Float Screw 

Nylon 

14 

½” Pipe Plug 

Steel 

15 

1

” Pipe Plug 

Cast Iron 

16 

2

” Pipe Plug 

Cast Iron 

17 

Float Hood 

316 Stainless Steel 

18 

Lock Washer 

410 Stainless Steel 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

REPAIR KITS 

Soft Goods Kit A939 (Part Number 2-80-1000-
023) contains Items 8, 9 and 10 
 
Other parts are ordered individually. 

   
 

 

 

 
 
 

 
 

VAG USA, LLC 

234 Clay Avenue 

• Mars, PA 16046 USA 

Phone: 724-776-1020 

 Fax: 724-776-1020 

info-ga@vag-group.com

 

www.gaindustries.com

 

 

  Older valves have ductile iron cage with bushing, 

bushing not used with 316SS cage 

Summary of Contents for GA Industries FIGURE 939

Page 1: ...uction 2 Description of Operation 2 Receiving Storage 2 Installation 2 Valve Construction 3 Preventive Maintenance 3 Testing Trouble Shooting 3 Disassembly 3 Assembly 4 Backflushing Instructions 4 Order Replacement Parts 4 Repair Kits 5 Warranty 5 Figure 939 Drawing Parts List 5 234 Clay Avenue Mars PA 16046 USA Telephone 724 776 1020 Fax 724 776 1254 E mail info ga vag group com ...

Page 2: ...the ground without dropping The valves should remain in a clean dry and weather protected area until installed For long term storage greater than 6 months the rubber surfaces of the seat should be coated with a non toxic lubricant such as SuperLube made by Synco Chemical Do not expose the rubber parts to sunlight or ozone INSTALLATION The Figure 939 is standard with 2 or 3 NPT screwed pipeline con...

Page 3: ...e The float should drop as the water leaves the valve NOTE A manual valve can be installed in place of the pipe plug to facilitate testing valves are included with backflushing attachments Replace or tighten the pipe plug and slowly open the inlet isolating valve After expelling air the valve should close and seal tightly TROUBLESHOOTING Valve Does Not Close Fluid Leakage Verify debris has not col...

Page 4: ... Lubricate cover O ring 13 in cover 2 and install on body 1 ensuring O ring is retained Install the cover bolts 11 and tighten in an alternating pattern Carefully introduce pressure and check for leaks BACKFLUSHING INSTRUCTIONS Follow all local cross connection and safety codes and regulations To determine if a GA Industries sewage air valve needs cleaning or backflushing Close the inlet isolating...

Page 5: ...ubber 9 Renewable Seat Buna N Rubber 10 Seat O Ring Buna N Rubber 11 Cover Bolt Zinc Plated Steel 12 Float Ball 316 Stainless Steel 13 Float Screw Nylon 14 Pipe Plug Steel 15 1 Pipe Plug Cast Iron 16 2 Pipe Plug Cast Iron 17 Float Hood 316 Stainless Steel 18 Lock Washer 410 Stainless Steel REPAIR KITS Soft Goods Kit A939 Part Number 2 80 1000 023 contains Items 8 9 and 10 Other parts are ordered i...

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