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Emerson Keystone K-LOK 360 Series, Installation, Operation, Maintenance And Troubleshooting, Page: 3 / 8

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Emerson Keystone K-LOK 360 Series Installation, Operation, Maintenance And Troubleshooting Download Page 3

3

4

5

22

19

24

21

20

2B

2D

2A

2C

2D

1

11A

14

1

11A

12A

14
13
1

12B

6

15

12A

11A

14
13

12A

11A

14
13

11B

33

34

32
10

10

31

16

17 & 18

7

4

3

8

9

17 &18

7

15

10

16

6

4

22

19

24

21
20

KeysTOne

 K-LOK

®

 SerieS 360/362 and 370/372

InstallatIon, operatIon, MaIntenance and troubleshootIng

Figure 2 

Fire-safe seat detail

Metal seat detail

Polymer seat detail

elastomer seat detail

nPS 2 to 30 disc locating 

shoulder detail

nPS 36 disc locating 

shoulder detail

See seat detail

See disc locating shoulder detail

adjustable disc stop detail 

nPS 30 and 36 only

Parts list

1

Body

16

Gasket bottom cover

2a

disc

17

Hex head cap screw

2B

Upper stem

18

Lock washer (ext. tooth)

2C

Lower stem

19

Lock washer (spring)

2d

Taper pin, disc

20

Hex soc. flat head screw

3

Gland

21

Clip or locating plate

4

Gland bridge

22

Packing gland bridge stud

5

Bushing

23

Key (NPS 8 to 36) (not shown)

6

disc locating shoulder (nPS 2 to 30)

24

Hex nut

7

Bottom cover

25

i.d. tag (not shown)

8

Packing ring, anti-ext.

26

Flow tag (not shown)

9

Packing set

27

Strap tag (not shown)

10

Thrust washer

28

Strap tag (not shown)

11a

Seat

29

Spacer (nPS 30 only)

11B

Fire-safe seat insert

30

Screws (nPS 30 and 36) (not shown)

12a

Seat wire wrap

31

Thrust plate (nPS 36 only)

12B

Seat backing ring

32

Screws (nPS 36 only)

13

Seat retaining gasket

33

Screw (nPS 30 and 36)

14

Seat retaining ring

34

nut (nPS 30 and 36)

15

Taper pin shoulder (nPS 2 to 30)

Summary of Contents for Keystone K-LOK 360 Series

Page 1: ... remove the valve from the shipping package box or pallet to avoid any damage to the valve and in the case of automated valves to the electric or pneumatic hydraulic actuator or instrumentation 2 Prior to installation clean the inside of the valve Insure that there are no solid objects such as pieces of wood plastic or packing materials within the valve or on the valve seat 3 Inspect the seat and ...

Page 2: ...l cause excessive time delay in the spring movement for the valve disc to travel out of the seat Operation The K LOK has been designed to require a minimum of maintenance Generally only maintenance on the packing box is required Maintenance If shaft leakage is observed through the packing box tighten the gland nuts Note do not over tighten packing box gland nuts Over tightening will increase the t...

Page 3: ... 2A Disc 17 Hex head cap screw 2B Upper stem 18 Lock washer ext tooth 2C Lower stem 19 Lock washer spring 2D Taper pin disc 20 Hex soc flat head screw 3 Gland 21 Clip or locating plate 4 Gland bridge 22 Packing gland bridge stud 5 Bushing 23 Key NPS 8 to 36 not shown 6 Disc locating shoulder NPS 2 to 30 24 Hex nut 7 Bottom cover 25 I D tag not shown 8 Packing ring anti ext 26 Flow tag not shown 9 ...

Page 4: ...nch vise so as to allow removal of upper stem 2B CAUTION Physically hold the disc to prevent the disc from falling and becoming damaged during removal When both the upper stem 2B and lower stem 2C are removed from the disc 2A the disc is unsupported WARNING Smaller discs may be removed by hand NPS 2 to 8 Remove larger discs with proper hoisting equipment Failure to do so may result in personal inj...

Page 5: ...ances 2 Remove the upper stem bushing 5 by striking the tool with a hammer 3 Insert the removal tool in the valve body 1 bottom plate area and down the lower stem journal until the tool contacts the lower stem bushing 4 Strike the tool until the lower stem bushing 5 is clear of the lower body stem journal Removing the packing assembly Method 1 for packing replacement with stem in body Using the sc...

Page 6: ...g the disc stem assembly CAUTION To prevent damage to the disc do not allow the disc edges to contact the body flowpath surface 1 Install the upper stem 2B and lower stem 2C into the valve body stem journals with the pinning grooves position on top of the stem side view Note the upper and lower stems are correctly installed when the lower ends of the stems are flush with the body flowpath surface ...

Page 7: ...eat 2 Place the seat assembly 11 and 12A into the valve body 1 seat pocket 3 Make sure the RTFE seat insert 11A is facing down toward the disc 2A sealing surface To install metal seats Place seat assembly 11 and 12A into the valve body 1 seat pocket Figure 10 Shows proper placement of seat retainer gasket Installing the standard seat assembly 1 Check to make sure the disc 2A is in the closed posit...

Page 8: ...ctuator stem adapter misaligned 2 Remove actuator mounting and realign 3 Overtightened packing 3 Loosen packing to hand tight cycle valve retighten 4 Air supply inadequate 4 Increase air supply pressure Table I Stem and pin material Filler rod 17 4 pH 1075 HT 312 stainless steel 17 4 pH 1160 DHT NACE 312 stainless steel 316 stainless steel condition B 312 stainless steel K Monel 500 Monel Inconel ...

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