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7. Guaranteed term and guaranteed range
The guaranteed period covers the period which finishes the earliest among 2 million operating
cycles (for size 25 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 product durability is varied depending on the operating conditions (such as a use with
large flow rate).
If the specification is not kept, or any non-conformance derived from mounting or replace of a
device, an assembly, or an O-ring at your place occurs, the guarantee cannot be applied.
If any failure occurs due to our fault during the guaranteed period, we will guarantee the
non-conformance by delivering a substitute in the worst case. However, responsibility of any
damage which is led by the product failure is not taken by us.
Result of durability test (with the circuit
shown on the right)
Internal/ external leakage and operation
were checked by opening and closing a valve
in internally evacuated condition at ordinary
temperature (room temperature).
It was confirmed that XLD-25, XLD-40
XLD-50, XLD-63 and XLD-80 satisfied
the product specification up to 2 million cycles,
XLD-100 and XLD-160 did up to 1 million
cycles.
The test was performed with FKM,
the standard sealing 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.
1
~
10 Pa
真空ポンプ
耐久試験条件
試験品姿勢
:
横向き
ブランクフランジ
Blank flange
Test piece posture: lateral
Vacuum pump
Durability test conditions
Chamber
Recommended
direction of air exhaust
Bellows side
Vacuum pump
Valve side
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XL*****-OMI0011-E