GLOBE VALVE(HD)

Testing Method

Measuring conditions

Decision conditions

Test of Inner Pressure

20㎏/㎠

No metamorphosis, no breakage

Test of Leakage

6㎏/㎠(N2 -120sec)

No leakage

Test of Vacuum

0.5mmhg(HELIUM)

Leakage quantity 5 x 10-9 cc/sec

Test of Operation

1000 times operation in 1 minute for 10 times under

no abnormality in inner pressure, leakage, vacuum

Test of Inner Heat

180°C-24 Hr

no metamorphosis(sample)