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"GARIVA" Single-sided seal L-motion

Differential pressure cancellation mechanism is used.
Easy to increase seal aperture size (field proven from G5 to G10).
Improvement in reliability of seal performance.
Because no inclination operation of the valve plate is required, sealing operation stabilizes, improving reliability.

    • L-motion type
      It is a gate valve that is synonymous with our company, which specializes in large opening sizes. By mounting a cylinder that combines an in-house bellows on the valve plate unit, stable
      sealability can be ensured even with a large opening. In addition, by incorporating a differential pressure canceling structure, it is possible to significantly reduce the pressure difference that
      acts on the valve plate when dealing with reverse pressure.

    • T-motion type
      A gate valve that is an evolution of the L-motion type. The operating time can be shortened by operating the two valve plates at the same time during Lock to Free. In addition, since there is no deformation of the rod, the generation of vibration due to the reaction force can be suppressed. 
      Switching of operation mode can also be selected as an option.


koslarze2 SEMI.jpg

Single-sided seal  L-motion

As is commonly known, the atmospheric pressure is a pressure corresponding to the weight of about 9.8N (≒1kgw) per square centimeter at approximately 100kPa. Assuming that the opening size of a vacuum gate valve (rectangular) is 300mm × 2000mm, It is necessary to have as much sealing force as the gross weight (8 ton) of a 4-ton truck with cargo. In other words, a valve that operates 1,000,000 times with this force needs to be large in weight and size with improvement in the rigidity of the valve body, with the result that manufacturing costs will increase, leaving only negative effects from a manufacturing perspective.
Therefore, IRIE KOKEN has developed a “differential pressure cancellation valve” in order to solve the above problems in upsizing the openings of gate valves.

・Ultra-large size for FPD/OLED equipment (up to G10.5)
・Equipped with pressure cancellation mechanism
・Long life (in-house bellows)


Standard Specification


leak rate
 Body:1 × 10-10[Pa・m3/s]
 Gate:5 × 10-10[Pa・m3/s]
     (Negative pressure) 
Temperature Body:120[℃ ]
Actuator: :60[℃ ]
Pend/Close moving time  2.5 ~ 5.0[s]


Material
Body :A5052/SUS304
Bellows:AM350、SUS304
     (Pressure cancellation)
Gate:A5052
Sealing :FKM
Operating Air pressure  0.45 ~ 0.60[MPa]
Service life 1M[Cycles]

Option

Spec without Pressure

cancellation
                                                     
ガリバー L-motion

Single-sided seal
L-motion
 For FPD/OLED manufacturing equipment, vacuum gate valve.

コスラーズ seal 方向切り替えtype

Both-sided seal
T-motion

Vacuum gate valve with additional functions to L-motion.

Custom Design

Please let us know your requirements.
We will consider your request individually.

  • We want to reduce particles to accommodate miniaturization.
  • We want to reduce the release of adhering particles by reducing vibration.
  • We want to reduce equipment downtime during maintenance.

If you have specific requirements, please let us know the details of your specifications.
Please feel free to contact us for force calculation and design proposals that meet your required specifications.

コスラーズ

KOSLARZE

A gate valve developed and developed with "non-sliding" as a design concept.

----------------------------------------------------------I want to use it as a sluice valve for semiconductor manufacturing equipment.

Please select the following case
ガリバー

GARIVA

It is a gate valve that is synonymous with our company, which specializes in large opening sizes.
----------------------------------------------------------I want to use it as a sluice valve for flat panel display manufacturing equipment.

Please select the following case
マリーナ

MARINA




----------------------------------------------------------I want to use it as an exhaust valve.


Please select the following case

FAQ

Q

Ultra-large size for FPD/OLED equipment (up to G10.5)

A

In the manufacture of flat panel displays, glass plates are becoming larger and displays are becoming higher resolution. Gate valve gullivers can easily be made with larger seal apertures, and we have a wealth of experience with G5 to G10.5 substrate sizes.

Q

Equipped with pressure cancellation mechanism

A

A vacuum gate valve with an opening size of 300 mm x 2000 mm requires a sealing force as large as about 8 tons.
We have developed a “differential pressure cancel valve” to solve this problem.

Q

What is long  life span(using our own bellows)?

A

We are also a bellows manufacturer. We have been supplying bellows to our customers for more than 50 years since our establishment.
The long-life bellows produced by our long years of experience help to ensure the high quality of our valves.

Related Information

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Technical Information

Please take a look at the technical information on gate valves.

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Inquiry

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