a)
螺纹连接的多回转阀门、止回阀和球阀中的连接螺纹多为符合美国国家标准协会ANSI的锥形阴螺纹,通常用于DN65和DN80管道上。
a) Threaded-end multi-turn valves, check valves
and ball valves with ANSI female taper threads are most commonly used
with pipe up to 2 1/2” or 3”.
b)
焊接连接端口可以将通径达DN80的青铜多回转阀门、止回阀和球阀直接连接在铜管上。在焊接过程中,必须要小心谨慎,避免由于温度过高导致阀门受到损害。
b) Solder-end valves permit directly connecting
bronze multi-turn valves, check valves and ball valves up to 3” to copper
tubing. Care must be taken not to overheat and damage valves during the
soldering process.
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c)
法兰连接常用于DN50以上的多回转铸铁阀门的安装上。
c) Flanged-end connections are the most common
used design for installation of iron multi-turn valves 2” and larger.
d)
平板(对夹)和凸耳阀体主要用于蝶阀和升降式/双门止回阀上,这种结构的阀门在两个法兰之间安装容易迅速。
d) Wafer and lug body styles are used with butterfly
valves and lift/double-door check valves for quick, easy installation
between two flanges.
e)
DN50以上的管状连接端口的球阀、蝶阀和止回阀安装最迅速。
e) Grooved end ball, butterfly and check valves
permit the quickest installation sizes 2” and larger.
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