Dymatrix® Technology

AVNVM Needle Valve

Ultra-precise flow control for critical high purity and aggressive chemical applications. Features dual-stem actuator with parabolic design for true linear flow characteristics. Perfect for Semiconductor and Life Science industries.

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AVNVM Needle Valve

Key Features

🎯

Ultra-Precise Control

Provides ultra-precise flow control with true linear flow characteristics across the full range of operation.

⚙️

Dual-Stem Actuator

Unique dual-stem design with different thread pitch functions like a reduction gear for micro-movements of the needle.

🔬

Monolithic Design

Integrated needle and diaphragm in single PTFE component prevents media leaking into valve bonnet.

🛡️

Sealing Cone Protection

Small sealing cone around needle base ensures excellent seal while protecting needle from damage.

📐

Parabolic Shape

Parabolic design provides linear flow rate across full operational range for predictable performance.

💎

High Purity Materials

Ultra-high purity, corrosion resistant PTFE and PFA wetted components for critical applications.

Technical Specifications

Materials of Construction

  • Wetted: PFA or PTFE
  • Actuator: PVDF

Flow Rate

  • 0 – 10 l/min

Orifice Sizes

  • 2 – 7mm

Flow Configuration

  • Straight

Actuation

  • Manual
  • Multi-turn push-to-lock

O-Ring Options

  • FKM
  • EPDM
  • Viflon F
  • Kalrez®

Connection Types

  • Flare
  • S300
  • Super Pillar
  • Tube
  • Rc
  • Flowell 20 & 60 series

Hardware

  • Fluoropolymer coated stainless steel

Innovative Design

🔧 Dual-Stem Technology

Both stems are threaded with different pitch that functions similar to a reduction gear. This unique actuation allows relatively large rotation of the handle to translate into micro movements of the needle, enabling very fine tuning of the flow rate.

🎯 Monolithic Needle/Diaphragm

The needle and diaphragm are integrated into a single PTFE component, eliminating potential leak paths and reducing particle generation. This novel design ensures maximum purity for critical applications.

📊 True Linear Flow

The parabolic shape design provides true linear flow characteristics across the full range of operation, ensuring predictable and repeatable flow control for process consistency.

Design Benefits

Precise Flow Adjustment: Dual stem design offers ultra-precise flow rate adjustment for critical applications
Zero Leak Path: Monolithic PTFE diaphragm/needle eliminates potential leak paths
Minimal Particle Generation: Integrated design reduces particle generation for high purity requirements
Needle Protection: Sealing cone prevents damage to needle while ensuring excellent sealing performance
True Linear Flow: Parabolic design provides predictable linear flow characteristics
Chemical Resistance: Ultra-high purity PTFE and PFA components resist aggressive chemicals
Flexible Mounting: Configurable mounting orientation for installation versatility
Multiple Connections: Wide range of connection types for system compatibility

Ideal Applications

Semiconductor Manufacturing
Life Sciences
High Purity Systems
Aggressive Chemicals
Precision Flow Control
Ultrapure Water
Chemical Processing
Pharmaceutical Production

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