Nylon Coated Butterfly Valve DN150 Price, Wear and Corrosion Resistant
Factors Affecting the Price of Nylon Coated Butterfly Valve DN150
Currently, the price of a nylon coated butterfly valve DN150 generally ranges from RMB 650 to RMB 1,800. The specific price is influenced by the following factors:
Valve Body Material: Ductile iron (QT450) + nylon coating costs approximately RMB 650-1,000; cast steel + nylon coating costs RMB 900-1,300; stainless steel body + nylon coating costs RMB 1,300-1,800.The main Butterfly Valve product names of China Butterfly Valve Network include:Electric Speed Control Butterfly Valve,Fire Signal Butterfly Valve,Flange Ceramic Hard-sealed Butterfly Valve,High Temperature Butterfly Valve,Pneumatic High Vacuum Butterfly Valve,Quick-installed Sanitary Butterfly Valve,Three Eccentric Multi-level Metal Hard-sealed Wafer Butterfly Valve,Welding Sanitary Butterfly Valve.
Coating Process: Electrostatic spraying of nylon 11 or nylon 12, with coating thickness of 250-400μm. Imported nylon powder and double-layer coating processes are 20%-30% higher in price.
Disc Material: Nylon coated disc costs RMB 650-1,000; stainless steel disc (304/316) costs RMB 1,000-1,500.
Seal Type: EPDM soft seal costs RMB 650-1,000; PTFE seal offers better temperature and corrosion resistance and is 30%-50% higher in price.
Core Advantages of Wear and Corrosion Resistance
Nylon coating (polyamide) has the following notable characteristics:
Wear Resistance: The coating surface has a low friction coefficient and far better resistance to particle erosion than rubber lining, making it suitable for media such as sand-containing sewage and slurry.
Corrosion Resistance: Resistant to salt water, weak acids, weak alkalis, and most organic solvents, especially suitable for seawater and desulfurization wastewater conditions.
Strong Adhesion: After electrostatic spraying and high-temperature curing, the coating bonds tightly with the metal substrate and is not prone to peeling.
Purchasing Suggestions
It is recommended that users select the coating material and thickness based on the medium type (solid content, pH value) and operating temperature (nylon coating suitable for -30°C to 80°C). When purchasing, confirm that the coating is free of bubbles and pinholes, and conduct pinhole detection using a spark tester. It is advisable to request quotes from at least three professional coated valve manufacturers for comparison, and give priority to products with drinking water hygiene safety certification (if used for water supply).
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