Product Overview:
This valve is mainly used at the discharge outlets of pumps in water supply and drainage systems,fire protection,air conditioning,electric power,construction,food,water treatment,municipal engineering,shipbuilding and other piping systems,to prevent backflow of the medium.The sealing ring of this product features an inclined design, which shortens the closing time and reduces water hammer pressure.The disc is made of oil-resistant NBR(nitrile rubber)and steel plate pressed together under high temperature, offering good erosion resistance and sealing performance.The product has a simple structure,making maintenance,repair and transportation very convenient.
Main Parts Materials:
| NO. | Part Name | Material | |||
|---|---|---|---|---|---|
| 1 | Body | QT450 | |||
| 2 | Bonnet | QT450 | |||
| 3 | Disc | Rubber Assembly | |||
| 4 | Gasket | NBR | |||
| 5 | Fasteners | Standard Components | |||
Parameters:
| Size(DN) | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Valve Length(mm) | 205 | 217 | 238 | 292 | 332 | 360 | 492 | 620 | 700 | ||
| Test Pressure(Mpa) | Shell | 1.5-2.4 | |||||||||
| Sealing | 1.1-1.76 | ||||||||||
| Nominal Pressure(Mpa) | 1.0-1.6 | ||||||||||
| Applicable Temperature | 0-80℃ | ||||||||||
| Applicable Medium | Water and Weakly Corrosive Fluids | ||||||||||
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