5. 45°, 90° Elbow, pipe, tube, hose 6. Lining layer: 2 to 5mm 7. Lining Material: PTFE, FEP, PO, PE etc. 8. Suitable medium: Acid, Alkali, Salt (except Active Sodion) Features: Easily install and maintenance Simple, compact structure, quick 90 degree on-off operation 5.