Circle Seal Controls

单向阀的工作原理

单向阀，也称为非回流阀、反向阀或止回阀，是一种用于控制流体流动方向的装置。其主要作用是允许流体在一个方向上自由流动，而在另一个方向上则阻止或限制流动。以下是单向阀的工作原理：


单向阀的主要组成部分包括阀体、阀座、阀盖和阀簧（或其他弹性元件）。工作原理如下：

1.正向流动时：当流体沿着单向阀的正向方向流动时，流体的压力会克服阀座上的弹簧力量，将阀盖打开。这使得流体可以自由通过阀体，并继续沿着管道或通道流动，就像正常的阀门一样。

2.逆向流动时：如果流体试图在单向阀的逆向方向流动，即与阀的设计方向相反，流体的压力将施加在阀盖上。阀盖会受到逆向流动的压力作用而紧密贴合到阀座上，从而阻止了流体的逆向流动。阀座和阀盖之间的密封确保流体无法通过。

这种工作原理确保了单向阀只允许流体在一个特定方向上流动，而在逆向流动时阻止了流体的传递。这在许多应用中都非常重要，例如：

-防止液体或气体回流到系统中，从而防止设备损坏或混合不同的流体。
-在液体供水系统中，防止水流逆流到水泵或供水管道中。
-在气压系统中，确保气体只能朝着预定的方向流动，以保持系统的稳定性。

单向阀的工作原理基于流体压力差的作用，这使其在许多工程和工业应用中都非常有用。不同类型的单向阀有不同的设计和应用，以适应各种需要。

circle seal单向阀 220T1-8PP-1 316不锈钢 Teflon® 1 in Female NPT 1 psig
circle seal单向阀 220T1-8PP-2 316不锈钢 Teflon® 1 in Female NPT 2 psig
circle seal单向阀 220T1-10PP 316不锈钢 Teflon® 1 1/4 in Female NPT up to 8 psig
circle seal单向阀 220T1-4PP-2.5 316不锈钢 Teflon® 1/2 in Female NPT 2.5 psig
circle seal单向阀 220T1-12PP 316不锈钢 Teflon® 1 1/2 in Female NPT up to 8 psig
circle seal单向阀 220T1-16PP 316不锈钢 Teflon® 2 in Female NPT up to 8 psig
circle seal单向阀 233T1-1PP 316不锈钢 Neoprene 1/8 in Female NPT 2 to 4 psig
circle seal单向阀 253T1-1PP 316不锈钢 Neoprene 1/8 in Female NPT 0.5 to 1 psig
circle seal单向阀 233T1-2PP 316不锈钢 Neoprene 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 253T1-2PP 316不锈钢 Neoprene 1/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 233T1-3PP 316不锈钢 Neoprene 3/8 in Female NPT 2 to 4 psig
circle seal单向阀 253T1-3PP 316不锈钢 Neoprene 3/8 in Female NPT 0.5 to 1 psig
circle seal单向阀 233T1-4PP 316不锈钢 Neoprene 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 253T1-4PP 316不锈钢 Neoprene 1/2 in Female NPT 0.5 to 1 psig
circle seal单向阀 233T1-6PP 316不锈钢 Neoprene 3/4 in Female NPT 2 to 4 psig
circle seal单向阀 253T1-6PP 316不锈钢 Neoprene 3/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 233T1-8PP 316不锈钢 Neoprene 1 in Female NPT 2 to 4 psig
circle seal单向阀 253T1-8PP 316不锈钢 Neoprene 1 in Female NPT 0.5 to 1 psig
circle seal单向阀 233T1-10PP 316不锈钢 Neoprene 1 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 253T1-10PP 316不锈钢 Neoprene 1 1/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 233T1-12PP 316不锈钢 Neoprene 1 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 253T1-12PP 316不锈钢 Neoprene 1 1/2 in Female NPT 0.5 to 1 psig
circle seal单向阀 233T1-16PP 316不锈钢 Neoprene 2 in Female NPT 2 to 4 psig
circle seal单向阀 253T1-16PP 316不锈钢 Neoprene 2 in Female NPT 0.5 to 1 psig
circle seal单向阀 262T1-1PP 316不锈钢 Ethylene Propylene 1/8 in Female NPT 2 to 4 psig
circle seal单向阀 262T1-2PP 316不锈钢 Ethylene Propylene 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 262T1-3PP 316不锈钢 Ethylene Propylene 3/8 in Female NPT 2 to 4 psig
circle seal单向阀 262T1-4PP 316不锈钢 Ethylene Propylene 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 262T1-6PP 316不锈钢 Ethylene Propylene 3/4 in Female NPT 2 to 4 psig
circle seal单向阀 262T1-8PP 316不锈钢 Ethylene Propylene 1 in Female NPT 2 to 4 psig
circle seal单向阀 262T1-10PP 316不锈钢 Ethylene Propylene 1 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 262T1-12PP 316不锈钢 Ethylene Propylene 1 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 262T1-16PP 316不锈钢 Ethylene Propylene 2 in Female NPT 2 to 4 psig
circle seal单向阀 262T1-2PP-0.15 316不锈钢 Ethylene Propylene 1/4 in Female NPT 0.15 psig
circle seal单向阀 232S-1PP Carbon Steel Viton® 1/8 in Female NPT 0.5 to 1 psig
circle seal单向阀 232S-2PP Carbon Steel Viton® 1/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 232S-3PP Carbon Steel Viton® 3/8 in Female NPT 0.5 to 1 psig
circle seal单向阀 232S-4PP Carbon Steel Viton® 1/2 in Female NPT 0.5 to 1 psig
circle seal单向阀 232S-6PP Carbon Steel Viton® 3/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 232S-8PP Carbon Steel Viton® 1 in Female NPT 0.5 to 1 psig
circle seal单向阀 232S-10PP Carbon Steel Viton® 1 1/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 232S-12PP Carbon Steel Viton® 1 1/2 in Female NPT 0.5 to 1 psig
circle seal单向阀 232S-16PP Carbon Steel Viton® 2 in Female NPT 0.5 to 1 psig
circle seal单向阀 232S-4PP-0.15 Carbon Steel Viton® 1/2 in Female NPT 0.15 psig
circle seal单向阀 232S-8PP-0.5 Carbon Steel Viton® 1 in Female NPT 0.5 psig
circle seal单向阀 249S-1PP Carbon Steel Buna N 1/8 in Female NPT 2 to 4 psig
circle seal单向阀 259S-1PP Carbon Steel Buna N 1/8 in Female NPT 0.5 to 1 psig
circle seal单向阀 249S-2PP Carbon Steel Buna N 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 259S-2PP Carbon Steel Buna N 1/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 249S-3PP Carbon Steel Buna N 3/8 in Female NPT 2 to 4 psig
circle seal单向阀 259S-3PP Carbon Steel Buna N 3/8 in Female NPT 0.5 to 1 psig
circle seal单向阀 249S-4PP Carbon Steel Buna N 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 259S-4PP Carbon Steel Buna N 1/2 in Female NPT 0.5 to 1 psig
circle seal单向阀 249S-6PP Carbon Steel Buna N 3/4 in Female NPT 2 to 4 psig
circle seal单向阀 259S-6PP Carbon Steel Buna N 3/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 249S-8PP Carbon Steel Buna N 1 in Female NPT 2 to 4 psig
circle seal单向阀 259S-8PP Carbon Steel Buna N 1 in Female NPT 0.5 to 1 psig
circle seal单向阀 249S-10PP Carbon Steel Buna N 1 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 259S-10PP Carbon Steel Buna N 1 1/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 249S-12PP Carbon Steel Buna N 1 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 259S-12PP Carbon Steel Buna N 1 1/2 in Female NPT 0.5 to 1 psig
circle seal单向阀 249S-16PP Carbon Steel Buna N 2 in Female NPT 2 to 4 psig
circle seal单向阀 259S-16PP Carbon Steel Buna N 2 in Female NPT 0.5 to 1 psig
circle seal单向阀 249S-4PP-3 Carbon Steel Buna N 1/2 in Female NPT 3 psig
circle seal单向阀 259S-12PP-0.15 Carbon Steel Buna N 1 1/2 in Female NPT 0.15 psig
circle seal单向阀 259S-4PP-0.15 Carbon Steel Buna N 1/2 in Female NPT 0.15 psig
circle seal单向阀 259S-6PP-0.15 Carbon Steel Buna N 3/4 in Female NPT 0.15 psig
circle seal单向阀 259S-8PP-0.15 Carbon Steel Buna N 1 in Female NPT 0.15 psig
circle seal单向阀 220S-1PP Carbon Steel Teflon® 1/8 in Female NPT up to 8 psig
circle seal单向阀 220S-2PP Carbon Steel Teflon® 1/4 in Female NPT up to 8 psig
circle seal单向阀 220S-3PP Carbon Steel Teflon® 3/8 in Female NPT up to 8 psig
circle seal单向阀 220S-4PP Carbon Steel Teflon® 1/2 in Female NPT up to 8 psig
circle seal单向阀 220S-6PP Carbon Steel Teflon® 3/4 in Female NPT up to 8 psig
circle seal单向阀 220S-8PP Carbon Steel Teflon® 1 in Female NPT up to 8 psig
circle seal单向阀 220S-10PP Carbon Steel Teflon® 1 1/4 in Female NPT up to 8 psig
circle seal单向阀 220S-12PP Carbon Steel Teflon® 1 1/2 in Female NPT up to 8 psig
circle seal单向阀 220S-16PP Carbon Steel Teflon® 2 in Female NPT up to 8 psig
circle seal单向阀 220S-4PP-0.5 Carbon Steel Teflon® 1/2 in Female NPT 0.5 psig
circle seal单向阀 220S-4PP-1 Carbon Steel Teflon® 1/2 in Female NPT 1 psig
circle seal单向阀 233S-1PP Carbon Steel Neoprene 1/8 in Female NPT 2 to 4 psig
circle seal单向阀 253S-1PP Carbon Steel Neoprene 1/8 in Female NPT 0.5 to 1 psig
circle seal单向阀 233S-2PP Carbon Steel Neoprene 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 253S-2PP Carbon Steel Neoprene 1/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 233S-3PP Carbon Steel Neoprene 3/8 in Female NPT 2 to 4 psig
circle seal单向阀 253S-3PP Carbon Steel Neoprene 3/8 in Female NPT 0.5 to 1 psig
circle seal单向阀 233S-4PP Carbon Steel Neoprene 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 253S-4PP Carbon Steel Neoprene 1/2 in Female NPT 0.5 to 1 psig
circle seal单向阀 233S-6PP Carbon Steel Neoprene 3/4 in Female NPT 2 to 4 psig
circle seal单向阀 253S-6PP Carbon Steel Neoprene 3/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 233S-8PP Carbon Steel Neoprene 1 in Female NPT 2 to 4 psig
circle seal单向阀 253S-8PP Carbon Steel Neoprene 1 in Female NPT 0.5 to 1 psig
circle seal单向阀 233S-10PP Carbon Steel Neoprene 1 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 253S-10PP Carbon Steel Neoprene 1 1/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 233S-12PP Carbon Steel Neoprene 1 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 253S-12PP Carbon Steel Neoprene 1 1/2 in Female NPT 0.5 to 1 psig
circle seal单向阀 233S-16PP Carbon Steel Neoprene 2 in Female NPT 2 to 4 psig
circle seal单向阀 253S-16PP Carbon Steel Neoprene 2 in Female NPT 0.5 to 1 psig
circle seal单向阀 253S-8PP-0.25 Carbon Steel Neoprene 1 in Female NPT 0.25 psig
circle seal单向阀 262S-1PP Carbon Steel Ethylene Propylene 1/8 in Female NPT 2 to 4 psig
circle seal单向阀 262S-2PP Carbon Steel Ethylene Propylene 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 262S-3PP Carbon Steel Ethylene Propylene 3/8 in Female NPT 2 to 4 psig
circle seal单向阀 262S-4PP Carbon Steel Ethylene Propylene 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 262S-6PP Carbon Steel Ethylene Propylene 3/4 in Female NPT 2 to 4 psig
circle seal单向阀 262S-8PP Carbon Steel Ethylene Propylene 1 in Female NPT 2 to 4 psig
circle seal单向阀 262S-10PP Carbon Steel Ethylene Propylene 1 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 262S-12PP Carbon Steel Ethylene Propylene 1 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 262S-16PP Carbon Steel Ethylene Propylene 2 in Female NPT 2 to 4 psig
circle seal单向阀 232A-1PP Aluminum Viton® 1/8 in Female NPT 0.5 to 1 psig
circle seal单向阀 232A-2PP Aluminum Viton® 1/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 232A-4PP Aluminum Viton® 1/2 in Female NPT 0.5 to 1 psig
circle seal单向阀 232A-6PP Aluminum Viton® 3/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 249A-1PP Aluminum Buna N 1/8 in Female NPT 2 to 4 psig
circle seal单向阀 259A-1PP Aluminum Buna N 1/8 in Female NPT 0.5 to 1 psig
circle seal单向阀 249A-2PP Aluminum Buna N 1/4 in Female NPT 2 to 4 psig
circle seal单向阀 259A-2PP Aluminum Buna N 1/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 249A-4PP Aluminum Buna N 1/2 in Female NPT 2 to 4 psig
circle seal单向阀 259A-4PP Aluminum Buna N 1/2 in Female NPT 0.5 to 1 psig
circle seal单向阀 249A-6PP Aluminum Buna N 3/4 in Female NPT 2 to 4 psig
circle seal单向阀 259A-6PP Aluminum Buna N 3/4 in Female NPT 0.5 to 1 psig
circle seal单向阀 220A-1PP Aluminum Teflon® 1/8 in Female NPT up to 8 psig
circle seal单向阀 220A-2PP Aluminum Teflon® 1/4 in Female NPT up to 8 psig
circle seal单向阀 220A-4PP Aluminum Teflon® 1/2 in Female NPT up to 8 psig