Good Butterfly valve, rubber lined, manufacture acc.to EN593 Butterfly valve, rubber lineddouble flange, double eccentric,Manufacture acc.to EN593Face to face length acc.to ISO5752 series 13/14Flange acc.to DIN2501Body and disc of DI, CS,Shaft of SSwith bare shaft, manual, gear, electric, pneumatic or others.Applicable: sea water, corrosive medium etc. 1Rubber lined butterfly valve