Series 77 High Purity Ball Valves
Series 77 Ball Valves feature a high quality 316L investment casting. They are available with sanitary clamp or orbital tube OD ends. Select the cavity filled or non-cavity filled design. Superior leak protection is accomplished by using a patented live-loaded packing system featuring Bellville washers and double “V” ring packing. An ISO 5211 mounting pad is provided for easy automation.
Main valve components are made from 316L stainless steel
· Body, and ends are 316L CF3M ASTM A-351 investment cast stainless steel
· Ball is machined from 316L CF3M ASTMA-351 cast stainless steel
· Stem is machined from ASTM A-493 316L bar stock
Full traceability on all wetted parts (MTR’s)
Standard internal polish is 15 Ra and is polished to meet ASME
BPE specification DT-12 and Table SF-6 as required.
Standard seats TFM (FDA, USP 23 Class VI)
· TFM (TFM is a trademark of Dyneon)
Stem packing TFM
Full port to I.D. of tubing for reduced pressured drop
Bottom entry 316L pyramidal live loaded blow out proof high cycle
stem adjusts to temperature and pressure fluctuation
Locked stem nut to prevent loosening after continuous valve actuation
Dual anti-static devices on stem (contact between stem and ball, and stem and valve body)
ISO 5211 direct mounting pad
Direct mount actuation 1/2” to 4”
Handle locking device when manually actuated
3-piece body construction for ease of repair
Open bolt design to facilitate full external cleanability
Clamp, extended butt weld, or clamp by extended butt weld
· Clamp end requirements per ASME BPE 2002 DT-10, per table DT-2
· Extended butt weld – 316L CF3M ASTM A-351 controlled chemical composition to ASME BPE 2002 table DT-3 and dimensionally per ASME BPE 2002 tables DT-4 and DT-5