The PV-3W by FLOW RITE is a needle pinch valve with a versatile design. With its compatibility with tube O.D. sizes from 4.0mm to 13.00mm or 5/32" to 1/2" O.D., this valve ensures efficient and precise flow control. Its no fluid to valve contact design provides reliable performance. Perfect for various applications, this pinch valve is a practical choice for fluid flow management.