5. Period and scope of warranty
The guaranteed period covers the period which finishes the earliest among 2 million operating
cycles (for size 16 to 80) or 1 million operating cycles (for size 100 and 160) [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.
Note) The endurance will depend on the operating conditions (such as if the flow rate is large).
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 guarantee
cannot be applied.
For any failure reported within the warranty period which is clearly our responsibility, the whole
valve will be replaced. This guarantee does not apply to any damage incurred due to the failure of
the valve.
Result of endurance test
(with the circuit shown on the right)
The valve was opened and closed in an internal
vacuum state at an ordinary (room)
temperature and
checked for internal and external leakage and
operation.It was confirmed that XLA-16, XLA-25,
XLA-40, XLA-50, XLA-63 and XLA-80 satisfied the
product specification up to 2 million cycles, XLA-100
and XLA-160 did up to 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
beforehand because it affects the life.
Vacuum pump
Bellows side
Valve side
Chamber
Recommended direction of exhaust
ブランクフランジ
1
~
10 Pa
真空ポンプ
耐久試験条件
試験品姿勢
:
横向き
Blank flange
Endurance test conditions
Vacuum pump
Test product orientation:
Horizontal
- 11 -
XL*****-OMI0009-E