Hello, this is VALVEPARK.
We recently received an inquiry from our client Company S regarding a valve malfunction.
We promptly identified the cause and resolved the issue.
Today, we would like to introduce VALVEPARK's after-sales service.
We recently received a service request from Client S, who operates a semiconductor facility, regarding the failure of a specific valve to maintain vacuum and a related leakage inspection.
Vacuum Pneumatic Inline Valve NW25 (SUS304, Single-Acting, Bellows Seal) : VALVEPARK
[VALVEPARK] Industrial Valve Solutions - Dow Valve specialist, all materials, multiple origins, custom fabrication
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Product: Vacuum Pneumatic Inline Valve
Model: VVP-07(D)
Quantity: 3 EA
Symptom: Failure to hold vacuum and leakage
The report stated that vacuum could not be maintained and leakage continued to occur.
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At the client's request, the valves were brought in,
and we proceeded with detailed root-cause analysis and defect localization using professional test equipment.
Test Method: Helium Leak Test (HE LEAK TEST)
Inject helium gas and precisely detect any leakage
Spray helium gas onto the valve under vacuum to verify leak-tightness
Acceptance Criteria: Vacuum level β€ 1.0 x 10β»β΄ Pa / Leak rate β€ 5.0 x 10β»βΈ ATMΒ·PaΒ·γ₯/sec
1οΈβ£ Whole-Valve Test (Assembled Condition)
β Leakage confirmed in assembled state
β Vacuum pressure failed to reach the target level
2οΈβ£ BODY-Only Test
β No leakage
β Normal vacuum pressure maintained
3οΈβ£ Test After Reassembly with Verified-Good SHAFT and BODY
β Leakage recurred
β The same phenomenon repeated on all 3 units
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Detailed inspection identified internal bellows damage as the primary cause.
This kind of damage frequently occurs in vacuum valves under conditions such as the following.
β High-speed VENT (exhaust) causing sudden air inrush
β Foreign matter trapped between the bellows convolutions
VALVEPARK replaced the necessary parts precisely according to the identified failure cause,
and after reassembly, completed verification under the same test environment before shipping the units back.
β Replaced the damaged bellows
β Replaced associated parts (cylinder, O-ring)
β Re-ran the Helium Leak Test (HE LEAK TEST) after repair
β Confirmed trouble-free operation and re-shipped
Valve service life and performance can vary significantly based on operating habits alone.
β Avoid any sudden inrush of air!
π« Make sure foreign matter does not get caught in the bellows!
Such simple care alone can significantly extend the performance and service life of a vacuum valve.
Valve care that moves before failure does - VALVEPARK is different!
VALVEPARK is not just a supplier focused on selling.
We see it as our responsibility to ensure the product performs as designed and is reliably used over the long term.
Instead of saying 'we just sold it~' when an issue arises with a product,
we work to think through the on-site situation together with our customers.
While we are not a dedicated A/S center,
we believe it is only natural to help customers use their products well.
Going forward, we will not stop at the point of sale - with reliable quality and unwavering product-care standards,
VALVEPARK will continue to build trust together with its customers.
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By the way, did you know our SmartStore has newly opened~?
π Anyone heading to the valve palace with us, this way.
VALVEPARK : Naver SmartStore
Industrial Valve Solutions - Dow Valve specialist, all materials, multiple origins, custom fabrication
smartstore.naver.com
Be sure to drop by and take a look,,, (ΰΈ β’Μ_β’Μ)ΰΈβΌΒ³ββ
