GA FIGURE 942 Installation, Operation And Maintenance Manual Download Page 1

 

Manual Number 942.2-IOM-111320

 

 

INSTALLATION, OPERATION AND 

MAINTENANCE MANUAL 

 

FIGURE 942 

3

”, 4” & 6” Drawings ECAV7131, ECAV7118 

COMBINATION AIR VALVES  

FOR SEWAGE & WASTEWATER 

 

TABLE OF CONTENTS 

 

Introduction 

….…………………………  2 

 

Description of Operation 

.....…………  2 

 

Receiving & Storage  ...

..………………  2 

 

Installation 

......………………………….  2 

 

Valve Construction 

......……………….  3 

 

Preventive Maintenance 

....…………..  3 

 

Trouble Shooting 

...……………………  3 

 

Disassembly

....…………………………   3, 4 

 

Reassembly 

....………………………….  4 

 

Backflushing Instructions 

……………  5 

 

 Order Replacement Parts 

……………..  5 

 

Warranty 

.………………………………..  5 

 

Figure 942 Drawing/Parts List 

…….…..   6

 

 

 

 

234 Clay Avenue 

• Mars, PA 16046 USA 

Telephone (724) 776-1020 

• Fax (724) 776-1254 

E-mail: 

[email protected]

 

 

Summary of Contents for FIGURE 942

Page 1: ...ONTENTS Introduction 2 Description of Operation 2 Receiving Storage 2 Installation 2 Valve Construction 3 Preventive Maintenance 3 Trouble Shooting 3 Disassembly 3 4 Reassembly 4 Backflushing Instructions 5 Order Replacement Parts 5 Warranty 5 Figure 942 Drawing Parts List 6 234 Clay Avenue Mars PA 16046 USA Telephone 724 776 1020 Fax 724 776 1254 E mail info ga vag group com ...

Page 2: ...hen water enters the valve and closes the orifices As air and sewage gas accumulate in the valve it forces the water level down until the float drops and opens the small air release orifice while the large orifice remains closed As air is released the water level rises lifting the float and re closing the small orifice This sequence occurs as often as necessary to release air and gas that has coll...

Page 3: ...e the outlet piping is not obstructed and to verify there is no fluid leakage Depending on the nature of the fluid sewage air valves may become clogged with sediment or grease and require periodic cleaning To facilitate such cleaning GA Industries air valves with an F at the end of the Figure Number e g 942F were supplied with backflushing attachments Refer to the backflushing instructions on Page...

Page 4: ...eat 4 into cage ensuring renewable seat remains in place Install cage O ring 7 position cage on cover and install cage bolts 27 and tighten Sizes 3 and 4 Thread orifice button 17 all the way into lever arm 13 and install hex nut 18 and lock washer 19 but do not tighten Connect the lever arm 7 to the cage 3 using spring pin 21 Adjust orifice button 17 so that the end of the lever arm 13 nearest the...

Page 5: ... until liquid runs freely from the blow off valve Shut off and disconnect the supply of clean water and close the blow off and flushing valves Slowly open the inlet isolating valve The air release valve should exhaust air and then close tightly REPLACEMENT PARTS Genuine replacement parts are available from your local VAG GA Industries representative or from the factory VAG USA LLC 234 Clay Avenue ...

Page 6: ... Ball 22 Cap Screw 23 Float Hood 24 Pipe Plug 25 1 Pipe Plug 26 2 Pipe Plug 27 Cage Bolt 28 Hex Nut 6 FIGURE 942 PARTS LIST 1 Body 2 Cover 3 Cage 4 Seat 5 Plug 6 Cover O ring 7 Cage O ring 8 Renewable Seat 9 Cover Bolt 10 Upper Plug Extension 11 Lower Plug Extension 12 Bushing 13 Lever Arm 14 Float Rod 15 Universal Coupling 16 Spring Pin 17 Orifice Seal 18 Lock Washer 19 Hex Nut 20 Lock Washer 21 ...

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