Item number: | VVS code xxx | A | A1 | HEX | Thread R | A2 | Thread R1 | Code no. | Opening diff. pres. water column | Max. working pres. |
---|---|---|---|---|---|---|---|---|---|---|
8908N 1/4x1/4 | 002 | 27,0 | 11,0 | 14 | 1/4 | 11,0 | 1/4 | 8908N | <100* | 8,0 |
8909N 3/8x3/8 | 003 | 32,0 | 13,0 | 17 | 3/8 | 13,0 | 3/8 | 8909N | <100* | 8,0 |
8910N 1/2x1/2 | 004 | 38,5 | 16,0 | 22 | 1/2 | 16,0 | 1/2 | 8910N | <100* | 8,0 |
Check valve with nylon ball
* Only valid in vertical rising flow direction.
The pressure drop over the valve in the flow direction may not exceed 1 bar.