gerhardl,
Thanks for your nice guidance for me, you are right we can not immediately say butterfly valves can replace ball valves unless we have strong justification and proven records for similar kind of service.
I will collect more data then i will raise further querries.
Sabir
[b]Can i use triple offset butterfly valves in place of ball valves. Line sizes range 24" to 56". Pressure rating 150# to 600#. Service is crude oil maximum operating temperature 120DegC. Please guide me i need experts opinions.
I have one case where we need ball valve flanged RF.900# Material Body & Stem A182 F22 Cl.3, Ball & Seat A182 F22 Cl.3+Stellite6 (Weldoverlay process).
Can i use above flanged valve at temprature 593DegC since ASME B16.34 Table for mtl group 1.10 restricts up to 538DegC.
Please guide me Thanks
Dear ALl,
I have one case where we need ball valve flanged RF.900# Material Body & Stem A182 F22 Cl.3, Ball & Seat A182 F22 Cl.3+Stellite6 (Weldoverlay process).
Can i use above flanged valve at temperature 593DegC since ASME B16.34 Table for mtl group 1.10 restricts up to 538DegC.
Please guide...
One question came up during globe valve vendor evaluation so please guide me:
• We need 2”-150# Globe valve A216 WCB Trim#1 (13CR) BB-OS&Y RF-SERR-FCG BS EN 10204 Type-3.1
• API602 table 12 gives us the trim#1 material details
• Now we have table F1 in same code which shows trim#8 for body...
