Pressure Tech LF-690 Скачать руководство пользователя страница 15

15 
 

6.3.3. Figure 4 

 Sectional View of the LF-691 (Long TW) 

© Copyright of Pressure Tech Ltd

Parts List 

Item 

Part Number 

Description 

PT-690-N-LF-03A-001 

BODY 

 

N

 PORTING 3/8

 MP 

PT-C-029-007 

CERAMIC SEAT 

PT-C-086 

BAFFLE PLATE 

PT-C-088-006-001 

MAIN VALVE 

PT-C-089-011 

SEAT CARTRIDGE 

PT-C-099 

MV SPRING 

PT-690-010-002 

BOTTOM NUT 

PT-690-011-015 

CONNECTOR PIN 

PT-690-018 

CERAMIC PLUG 

10 

PT-C-155-001 

SENSOR 

11 

PT-C-156-001 

SENSOR HOLDER 

12 

PT-C-095-001 

DOMED SPRING REST  

13 

PT-C-091-003 

VENT SEAT NUT 

14 

PT-C-029-013-001 

PEEK VENT SEAT 

15 

SPR-G40X89 

LOAD SPRING 

16 

PT-C-045 

ADJUSTING NUT 

17 

PT-C-046 

SCREW 

18 

PT-C-043-001 

ADJUSTING SCREW 

19 

BEAR-51103-SS 

SS BEARING 

20 

FIT-M3x6MM-SS-316-GRUBSCRW 

M3 X 6mm GRUB SCREW 

21 

OR-0061-25 

O' RING STD 

22 

OR-0068-20 

O' RING STD 

23 

OR-0418-22 

O' RING STD 

24 

OR-0457-22 

O' RING STD 

25 

OR-BS019 

O' RING STD  

26 

OR-BS806 

O' RING STD  

27 

OR-0350-20 

O' RING STD 

28 

ORB-PT-C-168 

PTFE BACK UP RING 

29 

ORB-PT-C-167 

PTFE BACK UP RING 

30 

ORB-PT-C-166 

PTFE BACK UP RING 

31 

PT-C-040-008 

BONNET  

32 

PT-C-180 

T BAR HANDLE  

33 

PT-C-107 

T BAR HANDLE 

Содержание LF-690

Страница 1: ...1 THE LF 690 691 SERIES Operating and Service Manual Series includes all variants of LF 690 691 Issue D March 2020...

Страница 2: ...F 690 with Domed SA Unbalanced MVA 8 6 2 Servicing the LF 690 Balanced Regulator 9 6 2 1 Accessing the Balanced Main Valve Assembly MVA 9 6 2 2 Figure 2 Sectional View of the LF 690 Balanced MVA 10 6...

Страница 3: ...systems be pressure tested leak tested and purged with an inert gas such as nitrogen Prior to placing into service ensure that the regulator is in the fully closed position with the adjusting mechanis...

Страница 4: ...ny time The LF 690 series may be offered with pressure limiting pressure locking or pre set pressure options Pressure limited regulators are fitted with locknuts on the adjusting mechanism in order to...

Страница 5: ...office Servicing and maintenance work on the LF 690 regulators should only be performed after fully reading and understanding the Operating and Servicing Manual Due to the compressibility of gases the...

Страница 6: ...eplace the connector pin chamfer down into the body while the body is up side down The pin should locate within the baffle plate 3 vi The new ceramic seat 2 should be placed in the seat cartridge 5 wi...

Страница 7: ...ing the sensor firmly in a vice with the vent seat nut 13 facing upwards ix The vent seat nut 13 can be removed using a 10mm open ended spanner and the vent seat 14 can then be removed from the sensor...

Страница 8: ...13 PT C 091 VENT SEAT NUT 14 PT C 029 013 PEEK VENT SEAT 15 PT C 042 LOAD SPRING 16 PT C 045 ADJUSTING NUT 17 PT C 046 SCREW 18 PT C 043 004 ADJUSTING SCREW 19 BEAR 51103 SS SS BEARING 20 FIT M3x6MM S...

Страница 9: ...does not fall out of place viii Replace all of the O rings and Backups 31 34 38 39 40 within and around Bottom Nut 3 Note The small back up ring 38 should be placed into the bottom nut 3 first followe...

Страница 10: ...10 6 2 2 Figure 2 Sectional View of the LF 690 Balanced MVA...

Страница 11: ...vent seat 23 for damage and replace xi Replace all O rings and backups 29 30 33 35 37 located on the sensor 15 and sensor holder 14 prior to reassembly ensuring adequate lubrication is used xii Inser...

Страница 12: ...087 12mm SENSOR 16 PT C 091 VENT SEAT NUT 17 PT C 042 MAIN LOAD SPRING 500KG 18 PT C 040 BONNET 19 PT C 043 004 ADJUSTING SCREW 20 PT C 045 ADJUSTING NUT 21 PT C 046 ADJUSTING NUT SCREW 22 BEAR 51103...

Страница 13: ...the connector pin chamfer down into the body while the body is up side down The pin should locate within the baffle plate 3 vi The new ceramic seat 2 should be placed in the seat cartridge 5 with the...

Страница 14: ...s vii The vent seat nut 13 can be removed using a 10mm open ended spanner and the vent seat 14 can then be removed from the sensor 10 along with the 6 85mm x 2mm O ring 22 viii Inspect the vent seat 1...

Страница 15: ...HOLDER 12 PT C 095 001 DOMED SPRING REST 13 PT C 091 003 VENT SEAT NUT 14 PT C 029 013 001 PEEK VENT SEAT 15 SPR G40X89 LOAD SPRING 16 PT C 045 ADJUSTING NUT 17 PT C 046 SCREW 18 PT C 043 001 ADJUSTI...

Страница 16: ...perating Temperature 20 C to 80 C Materials Body and Trim 316 SS Seat Ceramic Flow Capacity Cv Standard 0 1 High Pressure 0 05 Balanced 0 3 Leakage Liquid Zero drops of water at max inlet Gas Bubble t...

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