








Ultra High Purity Diaphragm Valves and Pressure Regulators for Reliable Ultra High Purity Liquid Chemical Handling Systems
Ultra High Purity Diaphragm Valves and Pressure Regulators for Reliable Ultra High Purity Liquid Chemical Handling Systems
Ultra-High Purity (UHP) Diaphragm Valves and Pressure Regulators are the critical control components that define the reliability of liquid chemical delivery systems. In semiconductor and photovoltaic manufacturing, these precision-engineered parts must manage hazardous and high-purity fluids without introducing even parts-per-trillion (ppt) levels of contamination.
The diaphragm valve is specifically designed to isolate the chemical from the valve’s mechanical parts. By using high-grade materials like 316L electropolished stainless steel with a 5Ra surface finish, these valves eliminate dead zones where particles could accumulate or bacteria could grow. This “packless” design prevents the shedding of metal ions, ensuring that the chemical integrity remains intact during sub-micron fabrication processes like wet etching and CMP.
Similarly, UHP pressure regulators provide the stable, consistent flow necessary for automated production tools. They are built to handle aggressive chemicals while maintaining precise pressure setpoints, preventing surges that could damage sensitive wafers. Integrated with PLC automation and non-contact sensors, these components allow for real-time monitoring and fail-safe operation. When combined with nitrogen blanketing and secondary containment, these valves and regulators form a robust, high-performance network that maximizes facility uptime and ensures the highest possible production yields.
Technical Data
| Model | JW-300-LDS |
| Special gas cabinet size | W1900*D800*H2100 |
| Control cabinet power supply | Control power supply: 220VAC, 50HZ, 500W, heating power supply: 220VAC, 50HZ, 1-6KW |
| Purge | PN2,1/4”MVCJ |
| High pressure holding | GN2.1/4” MVCJ |
| Vacuum | 1/2” MVCJ |
| VENT drain pipe | CDA driver, 1/4″ SWG |
| Pneumatic air source | OD 150MM, silane 810m³/hr; others 204m³/hr |
| Cabinet ventilation | OD 150MM, silane 810m³/hr; others 204m³/hr |
| Standard equipment | Automatic switching, automatic purging, explosion-proof and anti-leaving cabinet, explosion-proof self-locking door, explosion-proof glass observation window, leakage alarm, remote cut-off, negative pressure alarm |
| Operation interface | 10″ color touch screen |
Optional
*UV/IR Flame Detector
*Cylinder heating
*Panel heating
*Ethernet communication module
*Weight Scale
*Excess Flow Switch
*Smoke Sensor Switch
Application:
Semiconductor
Photovoltaic
Solar energy
Liquid crystal panel
Optical fiber
Other production fields
Speciality Chemicals Handled
HF- Hydrofluoric acid
HCL- Hydrochloric acid
H2O2- Hydrogen Peroxide
KOH- Potassium Hydroxide
HNO3- Nitric acid
NH4OH- Ammonium Hydroxide
H2SO4- Sulfuric acid
Function:
Liquid chemical filtration
Liquid chemical sampling
Liquid chemical circulation
Liquid chemical delivering










