Common Rubber Lining Materials
1. EPDM (Ethylene Propylene Diene Monomer)
◦ Water-resistant, aging-resistant, acid and alkali-resistant, ozone-resistant
◦ Suitable for: Sewage, tap water, seawater, weak acids and alkalis
2. NBR (Nitrile Butadiene Rubber)
◦ Oil-resistant
◦ Suitable for: Oil products, oily wastewater
3. CR (Chloroprene Rubber)
◦ Weather-resistant, acid and alkali-resistant
4. FKM (Fluororubber)
◦ High temperature resistance, strong corrosion resistance
◦ Suitable for: Strongly corrosive, high-temperature media
Advantages
• Excellent sealing, virtually zero leakage
• Strong corrosion resistance; valve body does not directly contact the medium, preventing rust
• Low flow resistance, strong flow capacity
• Easy to operate, not prone to jamming
• Low price, low maintenance cost
• Wide range of applicable diameters, commonly DN50～DN2000
Applicable Operating Conditions
• Media: Tap water, sewage, seawater, circulating water, weak acids and alkalis, desulfurization slurry, environmental water treatment
• Pressure: PN6, PN10, PN16
• Temperature: ≤120℃
• Applications: Municipal water supply and drainage, sewage treatment plants, power plant desulfurization, chemical acid and alkali pipelines, HVAC circulating water, etc.
