... - DN1400Design StandardAPI 609End flangeEN1092 ,ANSI 125/150# ,DIN2501Face to faceEN 558-1, BS5155 , ISO 5752Top flangeISO 5211 BodyDuctile ... carbon steel, stainless steel to order. Our products are designed and manufactured in accordance with the standards of GB, ASME ... , ANSI, API, BS, DIN, JIS etc. various high quality Butterfly valve