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    VALVE
    PHYSICAL PROPERTIES OF FLUIDS
    NATURE OF FLOW IN PIPE
    VALVE FLOW CHARACTERISTICS
    VALVE PRESSURE DROP

 



1) GATE

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1. װ ۴.
2. з¼ս .
3. 鰣 Ÿ ª 뱸浵 ϴ.
4. 鰣 Ÿ ª 뱸 ,
    Lift ũǷ ð .
5. Ȱϰ ü ܴɷ ϴ
6. ü ϱ κ      OpenǴ Disc Erosion ߻ϹǷ
    Ģ Full Open, Full Closeθ ϰ      Control ؼ ȴ.


Gate Valve Disc

Solid Wedge
Flexible Wedge
Parallel Slide

 

2) GLOBE

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1. ɷ پ ̼ ϱ ؼ
     Needle 긦 Ѵ.
2. ü ̱ Ͽ Y-Pattern Globe Valve
    Ѵ.
3. Gate Lift żϰ ǰ,
    Seating     з Ϸ
    з ϴ.
4. Seat ü S 帣Ƿ
    ü ü з ս ũ,
    ͷ ߻Ͽ з ս ũǷ
    ü 쿡 ϴ.

: Globe Valve, Angle Valve, Y-Globe Valve,
          Needle valve

 

3) CHECK

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1. ü θ 帣 ϰ, ϱ
    ⳪ ȣ Ѵ.
2. з°ϰ ԰ .

: Swing Check, Lift Check, Tilting Check,
          Piston Check, Ball type Check,
          Dual plate Check, Foot check


Swing Check


1. Ϲδ ġ,
    ġ ϴ.
2. Disc 쿡 ߻ϰ,
    Ŭ 쿡 ȿ ҿϰ
     Ͽ Disc Seat鿡 ߵϿ
    ļ ִ.
3. ü Ͽ Ϲ 2 ̻
    Ѵ.


Lift Check


1. Swing Check 꺸 ü ũ.
2. Piston̳ Ball Typeó .
3. ü Ͽ Ϲ 2 ̻
    Ѵ.


Tilting Check


1. Disc ̸ conical Seat
    ּȭ ϵ .
2. Disc ̹Ƿ ü ü
    .
3. 긦 Close Water Hammer
    Ƿ .

 

4) BALL

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1. з¼ս , ַ ̸, Quarter Turn
    (90 ȸ) ̹Ƿ ܽð ۵ ϴ.
2. ַ Seat Teflon ϹǷ
    (220̻ ) ϸ ַ ,
    ¿ Ѵ.
3. Ƿ
    , з¼ս .

 

1) ELECTRIC MOTOR ACTUATOR


Electric Motor Actuators are available for valves which are in accessibly located,
or where emergency may require rapid, positive operation from a remote point.
Kumwoo can supplies electric motor actuator for each type.


Limitorque
Auma
Rotork

 

2) GEAR ACTUATOR


Auxiliary gearing is often desirable to facilitate the operation of large size valves
required to close against high pressure.
Kumwoo valves can be furnished with a fully enclosed light weight and maintenance
free bevel or worm gear actuators.


Limitorque
Multi-turn actuators SA 07.1-SA 07.1 with integral controls AUMA MATIC

 

3) CHAIN WHEEL


Chainwheels can be furnished complete with chainwheel and chain wheel and chain guide.
They are means of safe and convenient floor operation of valves in overhead or inaccessible locations.

 

4) FLOOR STANDS & VALVE EZTENSION


Kumwoo floor Stands are of cast iron or fabricated steel and are available with or without an indicator.
They are furnished with a rising or nonrising stem and, if so ordered, equipped with an extension stem.
All stands are regularly furnished coated and are faced on bottom and drilled.
Gear and motor control floor stands can also be furnished if required.

 

5) BY PASS


Bypasses are used in steam service for warming up be before the main line is opened, and for balancing pressures where the lines are of limited volume.
All welded bypasses for Kumwoo Cast Steel Valves can be furnished with drop forged steel OS&Y globe valves when specified.
Bypass unit has a pressure-temperature rating and corrosion resistance equal to or exceeding those of the main valve.

 

PUSH-DOWN-TO-CLOSE VALVE BODY ASSEMBLY

 

DIRECT-ACTING ACTUATOR