Model API 6D - Axial Check Valves Brochure

As per ORION standard, the spring is sized for horizontal and vertical (downward-upward flow) installation, but it shall be properly sized to match specific installation, especially on larger valves where heavy discs are involved. An arrow is cast embossed on the body of the valve, indicating the fluid direction. Check anyway with ORION if the valve is suitable for the desired installed position.