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Single Port Exhaust Valve
Product overview
QB 1 single opening exhaust valve is mainly made up of body, bonnet, valve stem, floating ball, nozzle and other components. It was used for small diameter pipelines (pipes for DN50-200mm), it plays a role as a exhaust pipe in pipelines so that the pipelines will not have suffocation or air resistance. For example, there will be negative pressure inside the pipes at any time when pumps come across power outage and automatic suction can protect the safety of pipelines.
Product Features
1. This valve is suitable for water and hot water pipes with temperature not more than 100 ℃, so that the air in the pipe can be completely discharged.
2. When installing the double port exhaust valve, a protective valve and ball valve (q41f-16) must be installed below to avoid water cut-off during inspection.
Execution Standard
Performance Parameter
Nominal diameter：DN15~150mm
Nominal Pressure：PN1.0～1.5MPa
Applicable media：Water, steam, etc
Applicable temperature：-10≤120℃
Main materials：Cast iron, cast steel
