center dual flangde worm manual butterfly valve 1.professional manufurer. 2.ISO 9001 Certification,GB,CB,JIS,API,XRV,ect
center dual flangde worm manual butterfly valve
Butterfly valves / Major parts material
1. valve body : cast iron/ductile iron/carbon steel/stainless steel/bronze
2. valve disc : carbon steel/ductile iron /bronze/coated
3. valve seat : EPDM,PIFE/elastomer/NBR/VITON
4. valve stem : stainless steel or alloy
standards&data
Design standard:API609 MSS SP-68 Face to face:ASME B16.10 Flange ends:ASME B16.5
Design standard:API609 MSS.SP-68Face to face:ASME B16.10Flange ends:ASME B16.5
Test & Inspection:API598
center dual flangde worm manual butterfly valve
