Carbon steel wafer butterfly valve with worm gear operation Product Introduction: 1. Quality Grade: Heavy Weight 2. Valve Body: Carbon Steel 3. Valve Disc: CF8 4. Valve Seat: EPDM 5. Operation: Worm gear plus hand wheel 6. Worm gear material: Ductile Iron Product Featurers: 1) Valve body with hot shell casting, pressure bearing capacity 20% stronger; 2) JRVAL is able cast WCB, LCC and ultra-low temperature carbon steel valves; 3) The thickness of valve body, upper flange and neck are 3-5mm thicker, weight 20-30% heavier; 4) Valve seat over 50% rubber content, extended durability by 1-2 years; 5) Worm gear configuration option: Worm gear with signal head, indicator, solenoid bracket, Siemens electric controller, indicator light etc. |