What do pink and black represent for the two valve sets?

2017-09-05View Original

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What do pink and black represent for the two valve sets?

Reply #22017-09-06

There’s nothing much to discuss; just blow on it to find out which end is used for what.

Reply #32017-09-06

The two-valve assembly allows for one path to cut off pressure sampling and another path for draining waste fluid

Reply #42017-09-06

It is highly recommended to refer to the instructions, which indicate ISOLATE and VENT.

Reply #52017-09-07

Black is usually the isolation valve, while pink is usually the vent valve；

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