What is the explosion protection rating of this ASCO valve?

2017-10-14View Original

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I’ve always been confused by explosion protection ratings and found them hard to understand. Now I’m dealing with this ASCO valve as well – the client requires DⅡBT4 level of protection. Does it meet this requirement?

Reply #22017-10-14

This is equivalent to dIICT5–dIICT6; equipment for explosive gas environments should meet higher requirements.

Reply #32017-10-14

Looking at this ASCO rating, there are IIC, T6 (85 degrees Celsius), and T5 (100 degrees Celsius). Grade IIc is suitable for the operating conditions of grades IIA and IIB, and the maximum surface temperature of the equipment is below T4 (135 degrees Celsius) – so it can be used~~

Reply #42017-10-16

2c is higher than 2b, it can be used. A T4 of less than 135 degrees also meets the requirement.

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What is the explosion protection rating of this ASCO valve?

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