High Temperature Piezo Jet Valve — High Jetting Accuracy and Corrosion

Product Overview

This high-temperature piezo jet valve delivers stable, precise fluid deposition under elevated temperatures while resisting corrosive media. It is designed for repeatable micro-droplet ejection with low downtime in assembly and dispensing lines. Use it when you need accurate dosing of adhesives, flux, or corrosive fluids at higher processing temperatures.

Problem 

Many dispensing tasks fail when valves cannot tolerate high temperatures or corrosive fluids, causing clogging, inconsistent droplet size, or shortened service life. Production stops and material waste increase when standard valves are used outside their thermal or chemical limits.

Cause

Standard jet valves rely on materials and seals that degrade at high temperature or react with aggressive fluids. Thermal expansion and chemical attack change internal clearances and surface properties, leading to variable jetting behavior and nozzle wear.

Solution 

This piezo jet valve uses corrosion-resistant wetted materials and a thermal-stable actuator design to keep jetting consistent at elevated temperatures. The valve maintains droplet size stability and reduces maintenance frequency.

Typical benefits:

• Stable jetting up to the specified operating temperature
• High repeatability of droplet volume
• Reduced clogging and longer nozzle life
• Compatible with a range of corrosive adhesives and flux

Application

• Electronics assembly: controlled dispensing of solder paste additive, flux, and conformal coating where process temperature is raised.
• Industrial adhesive: high-temperature bonding in metal or ceramic substrates.
• Automotive components: dosing heat-cured sealants and high-temperature potting compounds.
• Specialty chemical: precise handling of mildly to moderately corrosive liquids used in manufacturing.

How It Works 

The valve uses a piezoelectric actuator to create a rapid pressure pulse that ejects a precise micro-droplet through the nozzle. A corrosion-resistant fluid path and stable actuator housing preserve the nozzle clearance and surface finish at elevated temperatures, ensuring consistent droplet formation. The pulse timing and amplitude control droplet volume and jetting frequency.

How To Choose

Temperature: Confirm your process peak temperature and select the valve with appropriate wetted material and seals.
Fluid compatibility: Check the chemical resistance of the recommended wetted materials (316L, PTFE, ceramic) against your fluid.
Droplet size: Choose the nozzle diameter and drive settings to match target nL volume.
Frequency needs: If you require high throughput, verify the valve’s maximum jetting frequency and driver capability.
Pressure source: Ensure your pump or pressure regulator can supply the inlet pressure range for stable jetting.
Maintenance access: Consider nozzle replacement options and the ease of in-line cleaning for your process.

FAQ

Q1: What maximum temperature can this valve handle?

A1: The valve’s standard configuration operates up to 180 °C. For higher temperatures, consult our technical team for special materials.

Q2: Which fluids are safe to use with this valve?

A2: It is compatible with common adhesives, fluxes, and mildly corrosive fluids when using the recommended 316L/PTFE/ceramic options. Provide your fluid spec for a compatibility check.

Q3: How often does the nozzle need replacement?

A3: Nozzle life depends on fluid abrasiveness and operating conditions. In typical use with non-abrasive fluids, nozzles last thousands of cycles; abrasive fluids reduce lifetime—spare nozzle options are available.

Q4: Can this valve run at high frequency continuously?

A4: Yes — up to the specified maximum (500 Hz) with appropriate cooling and drive settings. Continuous high-frequency operation should be validated in your process environment.

Q5: Do you provide installation or testing support?

A5: Yes. We offer application testing, setup guidance, and training for integration into production lines. Contact our team to arrange tests.