Description
Designed to protect pressure measuring instruments from aggressive process conditions.
Diaphragm pressure gauges are a safe and accurate solution for pressure measurement; they are a closed system consisting of a diaphragm and a pressure gauge filled with a sealing liquid.
Materials
To accommodate different operating conditions and types of chemicals, the separators are available in two main materials:
- Polypropylene (PP): offers good chemical resistance to many substances, making it a versatile and cost-effective solution for general industrial applications at moderate temperatures (up to about 60–70°C). Liquids compatible with PP include: phosphoric acid, sulfuric acid (up to certain concentrations and temperatures), ferric chloride, citric acid, liquid ammonia, sodium hydroxide (caustic soda, at low concentrations and temperatures), and many other solvents.
- PVDF (Polyvinylidene Fluoride): offers exceptional chemical and thermal resistance, making it ideal for highly corrosive fluids, strong acids, solvents, and temperatures up to 90°C, as well as high purity. Liquids compatible with PVDF include: acetic acid, ethyl alcohol, zinc chloride, formaldehyde, hydrochloric acid, nitric acid (up to certain concentrations), hydrogen peroxide, potassium hydroxide, and many other solvents.
