These needle valves are precision-machined from a single piece of material, delivering superior strength and performance for high-pressure and critical flow control applications. Designed for accurate regulation of liquids and gases, these rugged valves are available in various overlapping orifice-needle sizes to accommodate a broad range of flow rates. Engineered for precise control of very low flow rates in liquid and gas applications, the MFV™ metering valves feature a non-rising stem with a non-rotating, precision-ground tapered needle that moves in a true rectilinear motion. The design provides exceptional metering accuracy with sixteen turns from closed to full open, delivering high-resolution adjustment and virtually eliminating hysteresis. The valves provide dependable, bubble-tight shutoff and long service life in laboratory instrumentation, benchtop setups, and OEM flow control systems that require fine flow regulation.
- Chrome-plated brass body; Buna-N O-rings
- 316 stainless steel valve needle; 316 stainless steel orifice with PTFE liner
- Bubble-tight shutoff
- Non-rising valve stem; Virtually free of hysteresis (see-sawing)
- Sixteen turns to full open
- Max. working pressure: 500 psi
- Max. temperature: 180°F
- Max. flow: 400mL/min. (Air) & 12mL/min. (Water)
- Flow coefficient (Cv): 0.001
- Orifice: 0.042"; Dimensions: 1.25" L x 0.75" W x 3.4" Hgt.