KINGDOM KV-091/I, KV-09C/I, KV-09C/B, KV-L91/I, KV-L9C/I Installation, Operation, & Maintenance Instruction

1/4

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

y The normal maximum operating pressure at maximum or minimum operating temperature is

shown on nameplate.

y The 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.

y The 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

y Don’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.

2/4

. 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.

Table A: Torque of Stem 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