U Type Butterfly Valve
Size: 2"-80" or DN50-DN2000 
Pressure: 150LB-3000LB 
Material:
1) Body and Disc: Stainless steel, carbon steel, ductile iron, cast iron, etc.
2) Seat: EPDM, NBR, PTFE, VITON, stainless steel, carbon steel etc.
3) Stem: Stainless Steel, Carbon steel etc.
Design & Manufacture Standard: BS 5155, API 609, MSS SP-67, MSS SP-68 etc.
Face to Face Standard: BS 5155, API 609, MSS SP-67, MSS SP-68 etc. 
End Connection Standard: ASME B16.5, DIN2543-2545 etc. 
Test Standard: ISO5208, BS 6755 etc. 
Type: Center line pattern, single eccentric pattern, double eccentric pattern, tri- eccentric pattern etc.
Suitable Medium:  Water, oil, gas, vapor, steam etc. 
Operating type: Lever, worm-gear, electric, pneumatic and hydra-pneumatic etc. 
Note: Special designs are available