Pneumatic micro flow control valve EP grade

The ZJHP profile pneumatic micro flow control needle valve provides a superior fluid adjustment solution for high purity and ultra low flow industrial operations Precision machined from an electropolished 304 stainless steel block body its interior channels exhibit minimal roughness to eliminate medium contamination and outgassing under strict EP grade standards This instrumentation valve features a microscopic tapered needle trim designed to modulate complex chemical or gas flows down to a minute KV capacity of 0.0001 Managed by a top mounted multi spring pneumatic diaphragm actuator and an advanced electro pneumatic positioning unit it responds seamlessly to analogue process signals to deliver flawless automatic linear calibration for pharmaceutical laboratories chemical dosing setups and semiconductor fabrication lines operating under pressures up to 10 MPa

Technical Specifications

• Valve Design Classification Pneumatic Diaphragm Micro Flow Modulating Needle Control Valve

• Body Material Construction High Purity Forged Stainless Steel 304 Block Body Profile

• Surface Finishes Treatment Advanced Electropolished EP Grade Treatment for Clean Room Production

• Flow Capacity Optimization Ultra Low Flow Trim Configuration with Minimum KV Rating of 0.0001

• Actuator Operational Drive Multi Spring Pneumatic Diaphragm Actuator with High Linear Response

• Valve Positioning Instrument High Precision Modulating Electro Pneumatic Positioner Assembly

• Command Input Signal 4 to 20 mA DC Industrial Analogue Control Signal Input

• Pneumatic Instrument Air Supply 0.14 to 0.40 MPa Clean and Dry Compressed Air Supply

• Nominal Pipe Connection Size G 1 2 inch Threaded Port Design Internal Parallel Screw Thread

• Maximum Pipeline Working Pressure 10 MPa Nominal Working Rating equivalent to 100 Bar Pressure

• Internal Needle Trim Material Hardened Stainless Steel 316 Precision Tapered Needle Design

• Seat Sealing Performance Metal to Metal Hard Sealing Core with Low Leakage Characteristics

• Stem Sealing Construction Multi Layer Self Adjusting High Density V Ring PTFE Packing

• Flow Characteristic Output Highly Accurate Linear Modulating Curve for Fine Micro Control

• Air Joint Interface Fitting Threaded Female G 1 4 inch or NPT Instrument Air Connections

• Actuator Housing Protection Weatherproof IP 65 Dustproof Protective Coating Enclosure

• Travel Status Indication Integrated Clear Mechanical Indicator Pointer for Accurate Stroke Check

• Maximum Safe Processing Temperature 180 degrees Celsius with Standard Low Friction Seals

• Primary Media Suitability Ultra Pure Gases Reagent Grade Chemicals Liquid Pharmaceuticals High Purity Water

• Quality Verification Protocols Factory Hydrostatic Shell Pressure Calibration and Seat Tightness Evaluations