at position 1, the valve acts a open ball valves, free flow from A to P/R;
> at position 2, the ball is at the closing position, the ball, spring, are working together perform as a check valve, only allow flow from port A to port A/R.
> Carbon steel structure, blow out proof stem;
> Metric tube fitting connection and BSP female connection available;
> Available with fixing holes
> Direct interchangeable with other manufacturers
Please make sure directions when order and use this valve, install the valve in a wrong direction would lead to in proper function.