斯派莎克VB21破真空器 

VB21斯派莎克不銹鋼破真空器用于在蒸汽系統壓力低于大氣壓力時，破除管道真空。保護設備不受真空損壞，同時，可有效排除管道和換熱器中的冷凝水。
工作原理：
VB14、VB21真空破壞閥在形成真空的地方將大氣壓力引入蒸汽或者液體系統中，引入大氣以后，系統內的冷凝水就可以從高往低處流，從蒸汽設備疏水閥排出，因此，VB14、VB21破真空器對于工藝系統的正常排液是十分必要的。

價格咨詢：， ，:

特點：
1、有效的保護設備免受真空的破壞。
2、吸進大氣壓力使管道內與設備的壓力平衡并系統有效地排除管道內與設備真空現象。
3、結構小巧，可靠和耐腐蝕不銹鋼材質的設計。

Spirax Sarco VB21 kinds of small general-breaking vacuum, mainly for condensing vapor (steam) and liquid systems. For, when the steam system pressure below atmospheric pressure, the vacuum pipe break. · Protect equipment from damage to the vacuum · At the same time, can effectively exclude pipes and heat exchanger condensate. Installation VB21 air valve must be installed in a vertical position, the system connector located on the bottom of the vacuum break valve. As for the steam system, emptying valve must be installed on the highest point of the system, and to prevent condensation of water valve is not invaded.