2W Normally Closed Solenoid Valve Kit — Diaphragm for 2W (DN15 to DN50) Description This kit contains replacement diaphragms and seals for 2W normally closed solenoid valves, compatible with valve sizes DN15, DN20, DN25, DN32, DN40, and DN50 (1/2', 3/4', 1', 11/4', 11/2', 2'). Designed for routine maintenance and quick field , the kit restores valve sealing and operation without full valve replacement. Key benefits Restores reliable valve operation: Replaces worn diaphragms to eliminate leaks and restore proper closing action in normally closed 2W solenoid valves. Durable materials: Available in NBR, EPDM, and VITONSEL materials to match fluid compatibility and temperature requirements. Simplifies maintenance: Standardized parts make inspection and replacement fast, reducing downtime and maintenance costs. Precise fit: Manufactured to match 2W valve diaphragm specifications for stable, repeatable performance. Materials and temperature ranges NBR: suitable for general fluids, temperature range 5 to 80 degree centigrade. EPDM: good for hot water and many chemicals, temperature range 5 to 120 degree centigrade. VITONSEL: temperature and chemical resistance, temperature range 5 to 150 degree centigrade. Function and compatibility Model: diaphragm for 2W. Valve type: 2W normally closed solenoid valves. Sizes supported: DN15 to DN50 (1/2' to 2'), including DN50. Use the material that matches your fluid and temperature conditions to ensure proper sealing and longevity. Typical applications Industrial automation: diaphragm wear in process control valves to maintain accurate fluid control. Agricultural irrigation systems: Restore solenoid valves exposed to varying temperatures and waterborne contaminants. HVAC and boiler systems: diaphragms in valves handling hot water or steamrelated temperatures when using EPDM or VITONSEL as appropriate. What to consider when ordering Confirm your valve is a 2W normally closed solenoid type and verify the valve size (DN15 through DN50). Select the diaphragm material based on the media and maximum operating temperature: NBR for general use, EPDM for hot water and many chemicals, VITONSEL for higher temperatures up to 150 degree centigrade. This kit is intended for maintenance of 2W normally closed solenoid valves and provides the compatible diaphragm options and sizes needed to restore valve function and extend service life.