Spare parts Flange code Volume L Pipe connection V50008 5-8 3/4 V50009 5-8 1" V50024 18-100 3/4 V50025 18-100 1" V50300 200-300 1" 1/2 V50300R 200-300 1" 1/2 expansion vessel V50500 500-750 1" 1/2 V50500R 500-700 1" 1/2 expansion vessel V50N10A 1000-2000 2" Top connector flange Code Volume L Pipe connection V50301 100 1/2" V50302 200-300 1/2" V50305 500-1500 1/2" V50N20 2000 1/2"