The B8 is one of a full range of ball valves offered by IndMac in accordance with the API 6D standard. The fully welded body design reduces the number of potential leak paths that can be found in the bolted design. The body welded configuration allows for a considerable reduction in weight, especially if the welded ends version is selected. The B8 valves are well suited for Oil & Gas transmission and distribution systems both onshore and offshore.
Body Construction
The body is made of three forged parts and the all-welded construction minimize leak paths towards environment. The valve being of standard DPE design, tightness of the seating surfaces can be assessed by pressurising the body cavity only, before any repressurisation of the pipeline. A body drain is located in the lowest part of the body cavity and consists of a NPT drain valve with safety plug.
Standard Features
Size range: 6 to 60
ANSI Class: 150# to 1500#
Trunnion mounted
Triple barrier stem seals
Stem separate from the ball
Anti-blow-out stem design
Low friction metal-backed self lubricating PTFE sleeve bearings and thrust washers
Primary metal-to-metal seal and protected secondary O-ring seal
Double-piston-effect seat rings (double sealing barrier in both directions)
Double-block-and-bleed
Pressure relief valve in the body cavity to prevent pressure lock
Sealant injection system for emergency seat sealing
Factory positioned external stops
Integral stop in the adapter plate for a permanent reference to open and closed positions
Electroless nickel coating on pressure-controlling parts and stem
Fire safe in accordance with API 6FA, BS 6755 Part 2
CE marking (PED Directive)
Optional Features
Self-relieving seat rings
Plastic polymer insert for seat sealing
PTFE spring energized lip seals for seat and stem sealing
Metal-to-metal seat sealing
SS or Inconel 625 overlay on sealing areas
Explosive decompression resistant seals (std for Class 600 and higher)
Anti-static device
