VERSA阀B900系列介绍
B900 系列由三通 (3/2) 手动/先导操作主电源复位阀和三通 (3/2) 指示继动阀组成。 所有部件均由 316 不锈钢制成（符合 NACE 标准 MR-01-75）。 它们专门设计用于腐蚀性环境并控制腐蚀性介质和空气。 O 型圈填充提升阀在整个操作范围内提供气密密封，当用于操作小容量设备时，此功能可节省宝贵的仪表空气。
主供应复位阀可用作主继动阀，通常是先导式弹簧复位二位阀，另外还配有手动操作装置。 主供应复位阀的功能是控制向系统或系统部分的压力供应。 如果在系统中的某个点检测到问题，主供应复位阀将转换为从主供应复位阀控制的电路部分释放系统压力。 主供应重置阀的切换是通过先导装置完成的，该先导装置是阀门的组成部分。 当系统正常运行时，先导器会加压，但当检测到问题时，先导器会减压，阀门会切断主系统或阀门控制的主系统部分的压力。 有多种重置方式可供选择。 一个例子是“锁定先导”，当先导压力返回时，阀门不会移动以打开主系统的供应，直到阀门被手动重置。 复位的手动部分也可以是锁存的或非锁存的。 大多数主供应复位阀还可以配备一个集成的视觉指示器，用于指示先导室中何时存在压力。 每个阀门的完整功能描述可以在该阀门系列的页面上找到。
指示继动阀为先接收或先发送类型。 它们一般有两个功能。 首先，在面板上直观地指示已发生电路故障；其次，通过主电源复位阀快速排出系统中的工作压力。
The B900 Series is comprised of Three-Way (3/2) Manual/Pilot Operated Main Supply Reset valves and Three-Way (3/2) Indicating Relay valves. All are constructed of 316 stainless steel (meets NACE standard MR-01-75). They are designed for use particularly in corrosive environments and to control aggressive media as well as air. O ring packed poppets provide bubbletight sealing throughout the operating range and when used to operate small volume appliances this feature saves valuable instrument air.
Main Supply Reset valves can function as master relay valves and are generally pilot operated-spring return, 2-position valves that are provided additionally with a means of manual operation. The function of the Main Supply Reset valve is to control the supply of pressure to a system or portion of a system. If a problem is sensed at some point in the system, the Main Supply Reset valve will shift to dump system pressure from that portion of the circuit controlled by that Main Supply Reset valve. The shifting of the Main Supply Reset valve is accomplished by a pilot device which is an integral part of the valve. The pilot is pressurized when the system is running normally, but when a problem is sensed, the pilot is depressurized and the valve shuts off the pressure to the main system or that portion of the main system that the valve controls. Several variations of reset are available. One example is a “latching pilot” whereby when pilot pressure returns, the valve will not shift to open the supply to the main system until the valve is manually reset. The manual portion of the reset can also be latching or non-latching. Most Main Supply Reset valves can also be equipped with an integral visual indicator that indicates when pressure is present in the pilot chamber. Complete functional descriptions of each valve can be found on the pages within this valve series.
Indicating Relay valves are of the First Out-Receiving or First Out-Transmitting type. They have two functions generally. First, to indicate visually on a panel that a circuit malfunction has occurred and secondly, to quickly exhaust operating pressure from the system through the Main Supply Reset valve.
VERSA阀B900系列其他常用型号：
VERSA BAA-3309-900A
VERSA BAA-3309-900P
VERSA BAA-3309-900N
VERSA BAA-3309-900
VERSA BAA-3309-900W
VERSA BAA-3309-900NF
VERSA BAA-3309-900PR
VERSA BAA-3309-900G
VERSA BAA-3309-900-S-43E
VERSA Valves NEW + ORIGINAL+ ONE YEAR WARRANTY
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如果有任何关于VERSA阀BAA-3309-900-S-43E的疑问，请随时与我们沟通（021-31006702）。我们将尽全力解决您的问题。
If you have any question for VERSA products, please feel free to dial 0086-21-3100 6702/ send request email to sales@ize-industries.com / browse our website:www.ize-industries.com.
VERSA阀B900系列BAA-3309-900-S-43E介绍
