一般和工艺管一致。下面是我从我们规格书里摘出的:
Valve Sizing Requirements
5.2.1 Valve Sizes
• Valves shall be selected from standard pipe line sizes:
1\", 1-1/2 \", 2 \", 3\", 4 \", 6 \", 8 \", 10 \", 12 \", 14\", 16 \" etc.
• Non standard sizes, such as 1 1/4\", 2 1/2\" and 5\" shall not be used. |