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Needle Valves
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Dakota�s 2-way Needle Valves, designed and constructed of different materials, accommodate a wide range of laboratory, process control, and OEM applications. These valves are excellent choices for precision low flow metering of gases and liquids. The product line consists of manually-operated and power-operated units.

Manually- operated needle valves are available in brass, stainless steel or PTFE for fluid- contacting versions in either straight line (T) or 90 degree (L) patterns.

Based on the fluid being regulated, select:

  • Brass for mild media and marine applications
  • Stainless steel for corrosives
  • PTFE for highly corrosive or ultra-pure media

Valve types include:

  • Economical CV� Utility Valves
  • MFV Valves with �non-rising� stems ensure high precision, low hysteresis, and greatly enhanced resolution at a higher cost Power-operated needle valves include proportionating electromagnetic or stepping motor activated models:
  • PSV Solenoid Valves regulate fluid flow proportionately by increasing or decreasing input power to the coil. Optional Pulse Width Modulation facilitates flow control electronically. Valves are individually tested for 1 x 10?? sccs He leak integrity
  • SMV Stepping Motor Valves offer high resolution of 0.00025�/step linear modulation for liquids or gases. Fluid- contacting materials are aluminum or a combination of PTFE sleeve and 316 stainless steel. SMV valves are intended for continuous, low differential pressure operations with no overheating. (100% Duty Cycle). Valves stay in position when de-energized.
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316 Stainless Steel High Precision Metering Needle Valve - 90 Degree Flow Pattern 316 Stainless Steel High Precision Metering Needle Valve - 90 Degree Flow Pattern

316 Stainless Steel High Precision Metering Valves are designed for gases and liquids with very low flow rates. 90 Degree Flow Pattern.  Six overlapping orifice-needle sizes are available. Precision-machined valve-body is 316 Stainless Steel. Valves have a non-rising stem design and unique non-rotating needles.

316 Stainless Steel High Precision Metering Needle Valve - 180 Degree Straight Flow Pattern 316 Stainless Steel High Precision Metering Needle Valve - 180 Degree Straight Flow Pattern

316 Stainless Steel High Precision Metering Needle Valves (MFV)  are designed for gases and liquids with very low flow rates and Straight Flow Patterns.  Six overlapping orifice-needle sizes are available. The precision-machined valve body is 316 Stainless Steel. Valves have a non-rising stem design and unique non-rotating needles.

316 Stainless Steel Utility Needle Valve - 180 Degree (Straight) & 90 Degree Flow Pattern 316 Stainless Steel Utility Needle Valve - 180 Degree (Straight) & 90 Degree Flow Pattern

316 Stainless Steel Utility Needle Valves are designed for a broad range of gas and liquid flow rates in Straight Flow or 90 Degree Flow Patterns. The precision-machined valve body is 316 Stainless Steel.  These rugged, reliable valves are suitable for OEM, laboratory, and bench-top flow control applications.

Brass High Precision Metering Needle Valve - 180 Degree Straight Flow Pattern Brass High Precision Metering Needle Valve - 180 Degree Straight Flow Pattern

Straight Flow Brass High Precision Metering Needle Valves are designed for gases and liquids with very low flow rates. Six overlapping orifice-needle sizes are available. Precision-machined valve-body is 3Brass. Valves have a non-rising stem design and unique non-rotating needles.

Brass High Precision Metering Needle Valve - 90 Degree Flow Pattern Brass High Precision Metering Needle Valve - 90 Degree Flow Pattern

90 degree flow pattern Brass High Precision Metering Valves are designed for gases and liquids very low flow rates. Six overlapping orifice-needle sizes are available. Precision-machined valve-body is chrome-plated Brass. Valves have a non-rising stem design and unique non-rotating needles

Brass Utility Needle Valve - 180 Degree (Straight) & 90 Degree Flow Pattern Brass Utility Needle Valve - 180 Degree (Straight) & 90 Degree Flow Pattern

Straight and 90 Degree Brass Utility Needle Valves are designed for controlling a broad range of liquid and gas flow rates. These rugged, reliable valves are suitable for OEM, laboratory, and bench-top flow control applications and available in three overlapping orifice-needle sizes,

High Precision PTFE Needle Valves with Aluminum Shell & Handle High Precision PTFE Needle Valves with Aluminum Shell & Handle

PTFE Needle Valves with Aluminum shells are constructed of PTFE and PEEK. Non-fluid contacting parts are anodized Aluminum. Designed for high flow corrosive gas, liquid, and high purity regulation, , they also perform well with low flow rates. They can also be used as bubble-tight shut-off valves.

Proportional Solenoid Valve, 316/416 Stainless Steel, Viton® seals, 1/4" Compression Fittings Proportional Solenoid Valve, 316/416 Stainless Steel, Viton® seals, 1/4" Compression Fittings

Proportional Electromagnetic Valves are designed to respond to variable power inputs to regulate the flow of liquids and gases proportionately. Valves are normally closed for added safety.

Pulse width modulated Driver Modules regulate the power supplied to Proportionating Electromagnetic Valves based on a reference signal. Set-point signals, 0-5 Vdc or 4-20 mA, input are employed to control the output pulse width modulated voltage at a fixed frequency (≈30KHz) and amplitude.

Proportionating Solenoid Valve Driver Module Proportionating Solenoid Valve Driver Module

Pulse Width Modulated, Driver Module, (6APSD0101).

PTFE Utility Needle Valves - Aluminum Shell, Brass Bushing PTFE Utility Needle Valves - Aluminum Shell, Brass Bushing

PTFE Needle Valves with Aluminum shells and Brass bushings are constructed of PTFE and PEEK. External, non-fluid contacting parts are anodized Aluminum. Valves are designed for lab and industrial corrosive gas, liquids, and high purity regulation. They can also be used as shut-off valves.

   
 
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