We, BOHAI VALVE GROUP CO.,LTD., is a factory which specialised in producing verious kinds of valves,it is located at Tianjin Bohai Ecnomical development zone and occupied more than 10 thousand square meters. We found on 1980 and has more than 38 years production history,and currently we have ten technical engineers and more than 100 workmen in the workroom.
Our products are being exported to Europe,America,Australia,Egypt and South-east Asian countries.We have passed the ISO9001 ,ISO14001 ,OHSAS18001 ,CE ,Russia GOST ,and WRAS Certification .We will provide the high quality products to our clients with excellent service and competitive prices.
Worm Gear flange butterfly valve
This product is used for water supply and drainage system in tap water ,sewage, Building, chemicals Industries ,usually used as an open-close equipment .
Center Line structure ,strictly sealing ,long durable and lifetime .
API 609 Category A
Face-to-face: API 609 Table 1/ISO 5752 Series 20/BS 5155
Flange accommodation: ANSI B16.1 Class125/150
Tightness Inspection: API 598/ISO 5208,/EN12226-2
Main part material
Body: Ductile Iron ,Cast steel
Disc: Ductile Iron ,Cast steel
Stem: Stainless Steel
Sealing ring: NBR/EPDM/Fluorine Rubber
Packing: Flexible Graphite/PTFE