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168, 168H, and 68 Series

6

Key

Description

Part Number

20

Reset Lever, aluminum

13A746 7X012

21

Knob, S30300 (303 SST)

1U8793 35032

22

Pin

13A746 8X012

23

Machine Screw, steel (2 req’d)

13A783 4X012

24

Indicator Tag, SST

13A783 5X012

25

Tubing, copper (not shown) (specify length)

050020 1701W

26

Connector, brass (not shown)

15A6002 X202

27

Elbow, brass (not shown)

15A6002 X162

68 Series (figure 4)

1

Body, aluminum

3U8776 08012

2

Spring Case Assembly (consists of keys 2A through 2F)

Type 68-3

1U8547 000A2

Type 68-1 or 68-2

1U8777 000A2

2A

Spring Case, aluminum

3U8778 08012

2B* O-Ring, nitrile

1E2202 06992

2C Trip Lever, SST

1U8779 46172

2D Spring, SST

See table 2

2E

Trip Lever Pin, SST

1U8781 49062

2F

Spacer, nylon

1V1750 06162

3*

Rocker Assembly, glass-filled nylon with

polyurethane valve disks

1U8782 06992

4

Seat Ring, SST (2 req’d)

1U8784 35032

5

Roller Assembly, aluminum and SST

1U8786 000A2

6*

O-Ring, nitrile

1U8790 06562

7

Rocker Pin, SST

1U8791 49062

8

Machine Screw, pl steel (4 req’d)

10B6186 X012

9

Machine Screw, pl steel (4 req’d)

1A3279 28982

10

Nameplate, aluminum

1U8792 X00A2

11

Lever Knob (req’d w/Type 68-2), SST

1U8793 35032

Figure 4. 68 Series Switching Valve Body Assemblies

CU8794-F/DOC

*Recommended spare part.

For information, contact Fisher Controls:
Marshalltown, Iowa 50158 USA
Cernay 68700 France 
Sao Paulo 05424 Brazil
Singapore 128461

                                    

                                         

Printed in U.S.A.

E

Fisher Controls International, Inc. 1974, 1992; All Rights Reserved

Fisher, Fisher-Rosemount, and Managing The Process Better are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc.
All other marks are the property of their respective owners.

Содержание 168-1

Страница 1: ...e 4 three way snap acting body assemblies can be used alone or to form the valve body portions of 168 or 168H Series switching valves With the addition of the lever knob key 11 figure 4 to a Type 68 1 body assembly a Type 68 2 manual switching valve body assembly is formed Only personnel qualified through training or experience should install operate and maintain these valves If there are any ques...

Страница 2: ... metallic 1U878037022 metallic 1U854537022 yellow 1U854537022 yellow 68 1 68 1 68 3 68 3 The 68 Series body assemblies can be installed in any position Position a 168 or 168H Series switching valve so that moisture and other foreign material can not enter either the vent key 17 figure 3 or the small hole in the end of the stem protector key 10 figure 3 When the switch is in service inspect the ven...

Страница 3: ...set the unit after it has switched remove the ma chine screws and stem protector keys 11 and 10 fig ure 3 and use a screwdriver to return the trip lever key 2C figure 4 to its normal position With Manual Reset Switch When a manual reset switch see figure 3 is used on a unit in the single pressure trip mode either high or low pressure set point requiring only one adjusting nut the end of the reset ...

Страница 4: ...ng screws key 23 and indi cator tag key 24 from the stem protector key 10 2 Remove lever key 20 and pin key 22 from the stem protector Inspect parts and replace as neces sary 3 Insert pin in lever and replace lever in stem protec tor making sure the lever is in the proper position for the trip mode see 168 or 168H Series Manual Reset Operation section 4 Attach the indicator tag to the stem protect...

Страница 5: ...168 168H and 68 Series 5 43A8117 B B1199 1 IL DU8774 D DOC DU8796 D DOC Figure 3 Switching Valve Constructions ...

Страница 6: ...162 3 Rocker Assembly glass filled nylon with polyurethane valve disks 1U8782 06992 4 Seat Ring SST 2 req d 1U8784 35032 5 Roller Assembly aluminum and SST 1U8786 000A2 6 O Ring nitrile 1U8790 06562 7 Rocker Pin SST 1U8791 49062 8 Machine Screw pl steel 4 req d 10B6186 X012 9 Machine Screw pl steel 4 req d 1A3279 28982 10 Nameplate aluminum 1U8792 X00A2 11 Lever Knob req d w Type 68 2 SST 1U8793 3...

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