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Steam Quality Test Kit

Page 9

2. Steam Superheat Value - Test Equipment

For this test the temperature of steam passing through an orifice in a pitot tube to atmosphere is measured.The temperature is measured by using a thermocouple which is located at the centre of the expansion tube placed over the pitot tube. The temperature of the steam is considered to be acceptable if it is less than 25°C above that of the local temperature of boiling water, which is altitude dependant. The test is intended to demonstrate that the amount of moisture in the steam supply is sufficient to prevent the steam from being superheated as it enters the expanded space of a steriliser chamber. Silicone rubber insulated expansion tube, dual input thermometer, thermocouple probes and pitot tube with pressure gland.