| Advantages |
| extremly short face-to-face |
| integrated rubber packing |
| good tightness (rubber O-ring is used) |
| if no diferential pressure tightness through spring is assured |
| valve is prevented through spring from hydraulical shock |
|
| Application |
| Water, steam, gases according to the table as below |
|
| Installation |
| Into the horizontal pipeline or into the vertical pipeline if flow from downstairs |
|
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