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DeZurik APCO SRG-6500, Instruction Manual, Page: 9 / 11

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DeZurik APCO SRG-6500 Instruction Manual Download Page 9

DeZURIK

 

 APCO SRG-6500 Surge Relief Globe Valves 

December 2012 

Page 9 

D12020 

Drawings 

 

NO 

DESCRIPTION 

1 

Body 

2 

Cover 

3 

Cover Gasket 

4 

Cover Bolt 

5 

Body Seat Ring 

6 

Disc Seat 

7 

Disc Stop 

8 

Disc Pin 

9 

Disc Arm 

10 

Disc 

11 

Pivot Shaft  Bushing 

12 

Pivot Shaft Flanged Bushing 

13 

Pivot Shaft 

14 

Disc Arm Set Screw 

15 

Pivot Shaft Cover 

16 

Pivot Shaft Cover Bolt 

17 

Pivot Shaft Seal 

18 

Shaft Cover Seal 

20 

Cylinder Assembly 

21 

Cylinder Bracket Mounting Screw 

23 

Eye Bracket  Lock Washer 

24 

Cylinder Bracket 

25 

Eye Bracket  Mounting Screw 

26 

Eye Bracket  Nut 

27 

Cushion Lever 

29 

Counter Weight 

30 

Piping Detail 

31 

Seat Retaining Ring 

32 

Seat Retaining Ring Screw 

33 

Pivot Shaft Key 

36 

Counter Weight Arm Set Screw 

37 

Pivot Shaft Seal Retainer 

39 

Disc Stop Lock Nut 

40 

Seat Retaining Set Screw 

41 

Disc Pin Retaining Ring 

42 

Cover Pipe Plug 

43 

Body Seat Seal 

44 

Counter Weight Arm Assembly 

53 

Pivot Sleeve Bearing 

55 

Lever Arm Bolt 

56 

Lever Arm Bolt Nut 

57 

Disc Arm Sleeve 

58 

Oil Reservoir 

59 

Flow Control Valve 

Figure 4:  APCO SRG-6500 Surge Relief Globe Valve 

 

Summary of Contents for APCO SRG-6500

Page 1: ...APCO SRG 6500 SURGE RELIEF GLOBE VALVES Instruction D12020 December 2012 ...

Page 2: ...ion during shipment however items can be damaged in transport Carefully inspect the unit for damage upon arrival and file a claim with the carrier if damage is apparent Parts Replaceable wear parts are listed on the assembly drawing These parts can be stocked to minimize downtime Order parts from your local DeZURIK sales representative or directly from DeZURIK When ordering parts please provide th...

Page 3: ...escription 4 Handling and Storage 4 Installation 4 Fusion Powder Coated Valves 5 Maintenance 5 Disassembly 5 Assembly 6 Disc Seat Replacement 7 Operation 7 Start up Procedure 7 Oil Filling Procedure 8 Adjustment of Flow Control Valve 8 Operation of Internal Cushion 8 Drawings 9 Troubleshooting 10 ...

Page 4: ... Surge Relief valves are delivered to the jobsite factory adjusted and ready for installation It should always be installed with the replaceable resilient seat of the disc facing the system pressure The valve outlet must be piped to discharge into the wet well or into a spillway Valve may be installed in a horizontal or vertical position with the flow upward In either case counterweight arm 44 sho...

Page 5: ...ore servicing the valve 1 Relieve the pressure in the pipeline 2 If it is necessary to remove valve from pipeline set valve standing on its inlet flange 3 Support counterweight 29 then unscrew counterweight set screw 36 and remove counterweight assembly 44 4 Loosen nut 56 holding counterweight arm assembly to pivot shaft 13 and remove counterweight arm assembly 5 Disconnect the pin between cushion...

Page 6: ...ar 9 Insert pivot shaft key 33 in keyway on pivot shaft 13 10 Install pivot shaft 13 from right side of body 1 through disc arm 9 until pivot shaft collar is flush with body 11 Insert pivot shaft straight bushing 11 into the body 1 at the other end 12 Insert pivot shaft seal 17 and pivot shaft cover seal 18 in their respective grooves 13 Insert pivot shaft seal retainer 37 on pivot shaft cover and...

Page 7: ... chamber from the oil reservoir through the flow control valve 59 The amount that disc will open depends on the surge pressure and velocity of the media flowing through the valve When surge pressure has been relieved and pressure in the system drops to normal the disc will close The speed at which the disc returns to the closed position is controlled by adjusting the flow control valve Opening the...

Page 8: ...al Cushion As illustrated below the cushioning of a pneumatic hydraulic cylinder stroke is obtained by trapping the exhaust air oil as the piston assembly nears the end of its stroke In Figure 2 as the Cushion Plunger 1 enters Cushion Cavity 2 the exhaust air oil is almost completely trapped by the Ball Check 3 and the Adjusting Screw 4 creating a back pressure against Piston Assembly The back pre...

Page 9: ...nder Bracket Mounting Screw 23 Eye Bracket Lock Washer 24 Cylinder Bracket 25 Eye Bracket Mounting Screw 26 Eye Bracket Nut 27 Cushion Lever 29 Counter Weight 30 Piping Detail 31 Seat Retaining Ring 32 Seat Retaining Ring Screw 33 Pivot Shaft Key 36 Counter Weight Arm Set Screw 37 Pivot Shaft Seal Retainer 39 Disc Stop Lock Nut 40 Seat Retaining Set Screw 41 Disc Pin Retaining Ring 42 Cover Pipe P...

Page 10: ...lve to remove object Disc seat is worn or damaged Replace disc seat Valve leaks at flange joint Loose flange bolting Tighten flange bolting Blown flange gasket Replace flange gasket Miss alignment or damage to field piping and supports Adjust miss alignment or repair piping or supports Damaged flange face s or improper flange connections Repair flange replace valve body or adjust flange connection...

Page 11: ...ll be the only effective guarantee or warranty binding on Seller despite anything to the contrary contained in the purchase order or represented by any agent or employee of Seller in writing or otherwise notwithstanding including but not limited to implied warranties THE FOREGOING REPAIR AND REPLACEMENT LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES OBLIGATIONS AND LIABILITIES INCLUDING ALL W...

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