KINGDOM KV-091/I Handbuch

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Installation, Operation & Maintenance Instruction

(3 PC Body, Clamp / Butt Weld Ends, Sanitary Valve)

1. Scope: This instruction applies to 3-PC Body, Full Port Sanitary Valve, 400WOG (PN25); Clamp

Ends and Butt weld Ends; KV-09C/I, KV-091/I, KV-L9C/I, KV-L91/I according to ISO 2852，and

KV-09C/B, KV-091/B, KV-L9C/B, KV- L91/B according to BS 4825 & BPE. KV-L9C/I，KV-L91/I

and KV-L9C/B，KV-L91/B designed according to ISO 5211 mounting pad can be fixed with

actuator directly.

2. Warning (Restrictions on Use)

a. Temperature and Pressure Limit

yThe normal maximum operating pressure at maximum or minimum operating temperature is

shown on nameplate.

yThe operating temperature is within－290C to 2000C(if shell is WCB),or －400C to 2000C(if

shell is stainless steel) for PTFE or RTFE seat and sealing. Other seat and sealing operating

temperature shall be checked with KI Industries.

yThe nominal pressure (PN) rating describes maximum working pressure in cold operating

temperature (e.g. PN25 describes maximum working pressure 25 bar at －390C～400C).

b. Fluid limited

Since this valve is with soft seat, it is not suitable to granules liquor fluid or solidification fluid,

such as syrup.

c. No throttling operation

yDon’t leave the ball partly open where the pressure drop and/or flow rate damage to the valve

seats and/or ball.

3. Installation

a. Remove the rubber protective cover on clamp or butt welding ends, and clean or flush the valve

in fully open position(steam sterilization is allowed).

b. Prior to mounting, flush and clean the pipeline and valve to remove all accumulated extraneous

maters.

c. Installation of Clamp ends Ball Valves

1) Before connecting pipes with valves, should seal the connecting position with seal rings

according to standards ISO 2852

2) Should use quick clamps connect and fix the pipes and valves

d. Installation of Butt welding ball valves.

1) Keep valves in open position. lengthen butt welding ends can be welded directly: do

intermittent welding in four points of both butt welding ends.

2) if the butt welding ends is not lengthen, dismount cap bolts, but keep one bolts whose nut

should be loosen, and then the valve rotating freely.

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. 3) Finish the welding of both sides of the cap.

4) After cooling, clean body and caps

5) Rotate the valve to the original position, insert bolts and screw down nuts lightly. During

operation, it is very important to keep body and cap in a good parallel state to keep cap from

distortion.

6) Screw down all the bolts and make sure to follow the max. value of bolt screwing torque(refer

to attached list)

7) Do complete examination.

e. After installation, should make sure that pipes can bear the pressure.

4. Operation and Use

a. Flush the ball valve and pipeline thoroughly again before operation.

b. The operation of the valve consists of turning the stem(by manual or automated means)1/4

turn(900)clockwise to close, and 1/4 turn counter-clockwise to open.

c. When the handle (if used) and/or stem flats or groove are in line with the pipe, the valve is

open.

d. Operating torque requirements will vary depending on the length of time between cycles,

media in the system, line pressure and type of valve seat. The figures in the following table C

are based on PTFE seats with clean water as the media.

TableA:TorqueofStem Table B: Lock Torque of Stem Nut

5. Maintenance

Long life and maintenance-free of valves can be maintained under normal working conditions and

in accordance with pressure/temperature and corrosion data chart.

Size

IN-LB N.M

DN6-DN10 40 4.5

DN15 44 5

DN20 53 6

DN25 89 10

DN32 115 13

DN40 168 19

DN50 221 25

DN65 354 40

DN80 575 65

DN100 885 100

Size IN-LB N.M

DN6-DN10 70～80 8.0～9.0

DN15 70～80 8.0～9.0

DN20 90～100 9.0～11.3

DN25 90～100 9.0～11.3

DN32 140～160 15.8～18.1

DN40 140～160 15.8～18.1

DN50 180～200 20.4～22.6

DN65 180～200 20.4～22.6

DN80 180～200 20.4～22.6

DN100 250～270 28.3～30.6

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Warning:

Ball Valves can trap pressurized fluids in the Ball cavity when closed position.

Prior to maintenance, relieve the line pressure and put ball in open position.

1) Re-tighten packing

yShould a leakage occur at the gland packing, retighten the stem (gland) nut (12).

yTake care that the stem nut (13) are not tighten too much. Normally the leakage can be stopped

by simply turning the stem nut (13) by 300 to 600.

2) Replacement of seats and seals.

Disassembly

yPlace the valve in half-open position and flush the line to remove any hazardous material from

the valve body.

yMake sue ball valve (3) is in close position. Dismantle body-cap bolts, but keep one whose nut

is loosen, the valve will rotate freely.

yTake out body gasket (17) and seat (4). Examine the ball carefully and any scratch, should

exchange.

yWhen stem packing need exchange, please dismantle according the following order: handle

nut, handle (16) or driving device, stop-lock-cap (13), stem nut (12), belleville washer(11),

gland(10), bush (9), stem packing (8).

yPush stem (6) down into the body cavity and remove, then remove seal-ring (15), stem packing

(9) from the body.

Caution: Take care to avoid scratching the surface of stem and packing chamber.

Reassembly

yReassembly process is reverse sequence of disassembly.

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yClean and inspect all parts, full replacement of all soft parts (seats and seals) are strongly

recommended.

yTighten the body bolt (5) crosswise using the stipulated torque figure (see table C)

yTighten the stem nut (12) using the table B stipulated torque figure.

yIf possible, do pressure test before placing it back to line for service.

Table C: Lock Torque of Flange Connecting Bolts

SS（B8）SS （B8）MALT’S.

Unit

IN-LB N．M MALT’S. Unit IN-LB N.M

1/4-20UNC/M6 70 7.9 5

8-11UNC / 800 90.5

5/16-18UNC/M 100 11.3 3

4-10UNC / 1400 158.4

3/8-16UNC 160 18.1 7

8-9UNC / M22 2250 254.6

7/16-14UNC/M 280 31.7 1-8UNC / M24 3250 367.7

1/2-13UNC/M1 400 45.3

1,1

8-8UNC 4000 452.6

Size Size

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