3. Pressure: PN10, PN16, JIS10K, Class 150Lb 4. Body: Cast iron, ductile iron, WCB, S. S304/316, Bronze 5. Seat: EPDM, PTFE, NBR, Viton, Stainless Steel 6. Shaft: 45#Steel, 13Cr, Stainless steel 7: Ductile Iron, S. S304/316, Bronze8 Medium: Water, Oil, Sea water, Acid, Alkali