5. Period and scope of warranty
The warrantyd period covers the period which finishes the earliest among 0.1 million
operating cycles [with our durability test conditions], 18 months after shipping from us, and 12
months after starting the use of the product at your place or your customer’s place.
If the valve has been used outside of the specifications, or if a failure occurs as a result of
mounting onto a machine or replacement of an assembly, O-ring etc. by the user, the warranty
cannot be applied.
Notes
)
The endurance will depend on the operating conditions (such as if the flow rate is large).
For any failure reported within the warranty period which is clearly our responsibility, the
whole valve will be replaced. This warranty does not apply to any damage incurred due to the
failure of the valve.
Result of endurance test
(Using the circuit shown on the right)
The valve was opened and closed in an internal
vacuum state at nominal (room) temperature and
checked for internal and external leakage and proper
operation.
We confirmed that the product satisfies the
product specifications of 0.1 million cycles.
The test was performed with FKM, the standard
sealant material.
<Reference>
The pumping direction is not limited, but if the
pumping creates a flow stream, the durability of the
product could be impaired.
Therefore, the pumping direction shown on the
right figure (bellows side pumping) is recommended.
Also, the operating conditions should be checked
prior to use, as this affects the life of the product.
Vacuum pump
Bellows side
Valve side
Chamber
Recommended direction of exhaust
M
Blank flange
Tested product orientation : Sideways
1～10 Pa
Endurance test condition
Vacuum pump
Motor drive
10 -
XL*****-OMJ0005-C
