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AVK 869 Series, Инструкция по установке, эксплуатации и обслуживанию

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Page 4 of 12 
Copyright © AVK Holding A/S, original version, rev. 1, 8-July-2021

 

2.  AVK series 869 PSV parts list 

DN50FB 

– 350RB DIAPHRAGM CONTROL VALVE PARTS LIST 

No. 

Description 

Material 

1 

Adaptor 

Stainless Steel 

2 

Tee 

Stainless Steel 

3 

Pipe 

Stainless Steel 

4 

Adaptor 

Stainless Steel 

5 

Filter 

Stainless Steel 

6 

Adaptor 

Stainless Steel 

7 

Orifice 

Stainless Steel 

8 

Bolt 

Stainless Steel 

9 

Gasket 

EPDM 

10 

Plug 

Stainless Steel 

11 

Bonnet 

Ductile Iron 

12 

Washer 

Stainless Steel 

13 

Diaphragm 

EPDM 

14 

Washer 

Bronze 

15 

Disc Seal 

EPDM 

16 

Seat 

Stainless Steel 

17 

O-Ring 

EPDM 

18 

Ball Valve 

Stainless Steel 

19 

Elbow 

Stainless Steel 

20 

Nut 

Stainless Steel 

21 

Adaptor 

Stainless Steel 

22 

Tee 

Stainless Steel 

23 

Pilot 

Stainless Steel 

24 

Needle Valve 

Stainless Steel 

25 

Adaptor 

Stainless Steel 

26 

Plug 

Stainless Steel 

27 

O-Ring 

EPDM 

28 

Adaptor 

Stainless Steel 

29 

Adaptor 

Stainless Steel 

30 

Adaptor 

Stainless Steel 

31 

Stem Guide 

Stainless Steel 

32 

Spring 

Stainless Steel 

33 

Diaphragm Support 

Ductile Iron 

34 

Stem 

Stainless Steel 

35 

Plug 

Stainless Steel 

36 

Disc Retainer 

Ductile Iron 

37 

Regulating Plug 

Stainless Steel 

38 

Adaptor 

Stainless Steel 

39 

Body 

Ductile Iron 

 
 

 

Содержание 869 Series

Страница 1: ...alve AVK diaphragm operated control valves for pressure sustaining relief applications automatically maintain a minimum inlet pressure regardless of changes in flow rate or outlet pressure The main control valve is pilot operated capable of precise setting and easy adjustment of wanted inlet pressure sustaining back pressure or hydraulic un loading applications Diaphragm Operated Pressure Sustaini...

Страница 2: ...Page 2 of 12 Copyright AVK Holding A S original version rev 1 8 July 2021 1 AVK series 869 PSV exploded view DN50FB 350RB DIAPHRAGM CONTROL VALVE EXPLODED VIEW ...

Страница 3: ...Page 3 of 12 Copyright AVK Holding A S original version rev 1 8 July 2021 DN350FB 600FB DIAPHRAGM CONTROL VALVE EXPLODED VIEW ...

Страница 4: ...aphragm EPDM 14 Washer Bronze 15 Disc Seal EPDM 16 Seat Stainless Steel 17 O Ring EPDM 18 Ball Valve Stainless Steel 19 Elbow Stainless Steel 20 Nut Stainless Steel 21 Adaptor Stainless Steel 22 Tee Stainless Steel 23 Pilot Stainless Steel 24 Needle Valve Stainless Steel 25 Adaptor Stainless Steel 26 Plug Stainless Steel 27 O Ring EPDM 28 Adaptor Stainless Steel 29 Adaptor Stainless Steel 30 Adapt...

Страница 5: ...less Steel 15 Diaphragm Support Ductile Iron 16 Disc retainer Ductile Iron 17 Regulating Plug Stainless Steel 18 Adaptor Stainless Steel 19 Ball Valve Stainless Steel 20 Elbow Stainless Steel 21 Plug Stainless Steel 22 Gasket EPDM 23 Bolt Stainless Steel 24 Adaptor Stainless Steel 25 Pipe Stainless Steel 26 Needle Valve Stainless Steel 27 PSV Pilot Stainless Steel 28 Adaptor Stainless Steel 29 Ada...

Страница 6: ...peration 7 5 Health and safety at work 8 6 Receiving and storage 8 7 Installation and commissioning 9 7 1 Installation 9 7 2 Commissioning 10 7 2 1 Commissioning of the PSV 10 8 Application hazards 10 9 Operation and Maintenance 11 9 1 Operation 11 9 2 Maintenance 11 9 3 Repair of valve 11 9 3 1 Replace the pilot valve 11 9 3 2 Replace the filter 11 10 Trouble shooting 12 11 Recommended spare part...

Страница 7: ... The main control valve is pilot operated capable of precise setting and easy adjustment of wanted inlet pressure sustaining back pressure or hydraulic un loading applications Description Condition Upstream Pressure 𝑃1 within area A 𝑃1 𝐴 Valve outlet Pressure 𝑃2 within area B 𝑃2 𝐵 Control Chamber Pressure 𝑃3 within area C 𝑃3 𝐶 Spring Force of main valve 𝐹spring Opening Operation 𝑃1 𝐴 𝑃2 𝐵 𝑃3 𝐶 𝐹sp...

Страница 8: ...or which it was designed However this assumes that the equipment is used and maintained in accordance with this manual and the user is advised to study it and to make it available to all staff that may need to refer to it AVK cannot be held responsible for incidents arising from incorrect installation operation or maintenance The responsibility for this rests wholly with the end user 6 Receiving a...

Страница 9: ...s the disc hinge pins must be horizontal This is achieved when the valve is installed with the top stopper cover uppermost Check the mating flange facings both valve and pipe work flanges for correct gasket contact face surface finish and condition If a condition is found which might cause leakage do not attempt to assemble until the condition has been corrected Check the gasket material For flang...

Страница 10: ...n anticlockwise until it open fully Open partially system downstream isolation valve E slowly Open ball valve 2 turn slowly clockwise PSV pilot regulator 3 until desired upstream pressure is achieved Push PSV regulator 3 to lock open slowly system downstream isolation valve E until it open fully valve is now set 1 Upstream ball valve 2 Downstream ball valve 3 PSV regulator 4 Needle valve 5 Plug 6 ...

Страница 11: ...ong as the valve operates satisfying If the valve ceases to function the internals can be inspected by disassembling the pilot valve and removal of the bonnet and if necessary the valve should be removed from the line WARNING Prior to any maintenance work that requires disassembly make sure that the pressurized line involved is isolated depressurized and drained before starting any disassembly Fai...

Страница 12: ...t is AVK policy therefore to use only materials of the highest quality manufactured to our own designs and thoroughly checked and tested in accordance with our internal Quality Assurance system that is approved to ISO 9001 2000 It is absolutely essential therefore that in order to guarantee the highest level of safety and performance only genuine AVK spare parts are used AVK can accept no responsi...

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