Restricted pipeline layouts and extreme sub-zero environments often cause standard directional flow sensors to crack or fail, leading to costly industrial downtime,the SAIER DN40 Stainless Steel Passive Flow sensor is engineered for absolute resilience. Forged from premium stainless steel, it effortlessly manages massive 5-150L/min flow volumes and survives brutal -40°C to 60°C thermal extremes. Its advanced omnidirectional design permits flexible installation at any angle without measurement loss. Powered by a highly reliable 10W passive reed switch (Max DC150V), it requires zero operating power.Simplify your PLC integration regardless of mounting angle with our unified calibration formula: F = (1.5Q – 2) ±10%.Upgrade your heavy-duty fluid networks with structural certainty. Contact our engineering team today for B2B pricing!