Lined Diaphragm Valve
PTFE / rubber-lined diaphragm valves providing precise bi-directional isolation and throttling control for highly corrosive, abrasive, and ultrapure fluid handling applications.
What Is a Lined Diaphragm Valve?
Lined diaphragm valves feature a flexible PTFE or elastomeric diaphragm that presses against a lined body weir to achieve shut-off or throttling. The diaphragm completely separates the process media from the operating mechanism — stem, bonnet, and actuator — ensuring zero packing leakage and zero contamination. Ideal for sterile pharmaceutical processing, ultra-pure semiconductor chemicals, aggressive acids, alkalis, and slurries where conventional valves fail due to corrosion or contamination risk. Available in weir-type and straight-through (full-bore) configurations.
Key Features
- ✔️ Excellent Corrosion Resistance - PTFE/PFA lined for aggressive chemicals
- ✔️ Leak-Free Diaphragm Sealing - Prevents stem leakage and contamination
- ✔️ Smooth Flow Control - Ideal for throttling and isolation applications
- ✔️ Low Maintenance Design - Simple construction with long service life
- ✔️ Chemical Process Ready - Suitable for acids, alkalis, slurries, and corrosive media
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Technical Specifications
| Parameter | Details |
|---|---|
| Size Range | 1/2 |
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