How to choose sealing material for water purifier pressure gauge

In modern water purification systems, the choice of sealing materials directly affects the performance and reliability of the equipment. EPDM (EPDM) has become a widely used material for Water Purifier Pressure Gauge sealing components due to its excellent water resistance, ozone resistance and excellent elasticity. EPDM can maintain its excellent elasticity and anti-compression permanent deformation capability within the operating temperature range of -40°C to 120°C, and is suitable for a variety of residential and commercial water purification environments. The material exhibits strong resistance to hot water, cold water, softened water and most cleaning agents, and can avoid aging, swelling or cracking in the long-term contact with the liquid medium in the water purification system. In addition, EPDM has also passed many food-grade certifications such as FDA and NSF, which is an important choice to meet the requirements of drinking water contact materials.

When faced with high temperature, high chemical corrosion or special liquid media application scenarios, Viton has become the preferred material for high-end Water Purifier Pressure Gauge seals due to its excellent high temperature and chemical corrosion resistance. Viton can operate stably for a long time in an environment up to 200°C or even 250°C, and has extremely strong tolerance to acids, alkalis, ozone, chlorine and various solvents. Therefore, Viton is regarded as an ideal sealing material in high-end industrial water treatment equipment and special water treatment (such as high chlorine, high ozone water) systems. Its low permeability and excellent sealing stability are particularly outstanding under high-pressure operating conditions, and can effectively prevent safety hazards caused by leakage and system pressure fluctuations.

Silicone rubber materials also play an important role in the seal design of Water Purifier Pressure Gauge, especially for systems that have extremely high sanitary ratings or require operation in extremely low temperature environments. Silicone rubber can maintain good flexibility and resilience in the temperature range of -60°C to 200°C. Its chemical inertia makes it hardly react with the substances in water, thus ensuring the water quality of the water purification system is pure. At the same time, transparent or translucent silicone can be used in visual structures to enhance the overall appearance and user experience. Although silicone rubber is slightly inferior to other rubber materials in terms of mechanical strength and wear resistance, its advantages in food safety grade and biocompatibility make it irreplaceable in medical-grade water purification devices or maternal and infant water equipment.

Polytetrafluoroethylene (PTFE) materials are widely used in water Purifier Pressure Gauge sealing gaskets or interface seals in high pressure, high corrosion or extremely high airtightness requirements for environments. PTFE can withstand strong acids, strong alkalis and various organic solvents for a long time. Its temperature resistance covers a wide range of temperatures from -200℃ to 260℃, and is not affected by water quality fluctuations or sudden temperature rise in the system. Due to its non-absorbent and unprone to aging, PTFE is widely used in commercial water purification systems that require frequent disassembly and assembly or have extremely long operating cycles, becoming a high-quality material to ensure the reliability of long-term sealing of pressure gauges.