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Question:

The valve nominal 1/2, 3/4 is how much?

The valve nominal 1/2, 3/4 is how much?

Answer:

Nominal diameter 1/2 3/4 corresponding to DN15 DN20
The 1 point is DN25 mm1/2 is DN15 mm3/4 is DN20 mm
1/2 equivalent to the national standard of 15mm, 3/4 equivalent to GB 20mm. That is, DN15 and DN20

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