We are offering weir type diaphragm valve.Technical specification design standard : bs en 13397:2002 (formerly bs 5156)face to face : bs 2080, din 3202, mssp 88, en 558flange : as per ansi b16.5 b16.42drilling : asa #150 din 263233 bs 10 table d, e, flining thickness : 3 to 5 mmtesting standard : bs en 12266-1&2 (2003)