GROVE BT1 Top Entry
Optional Features of the GROVE BT1
Self-relieving seat rings
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)
Features to allow vertical installation and maintenance
Fire safe in accordance with API 6FA, BS 6755 Part 2
Body-bonnet design is of bolted construction
Complies with requirements given in ASME VIII Div. 1.
The bolted construction allows disassembly in-line for inspections and possible repairs.
Clearing the bonnet off the valve allows free access to the ball and the seats which can simultaneously be taken out without the need for any special maintenance tools.
After maintenance, the valve being of standard DPE design, tightness of the seating surfaces can be assessed by pressurizing the body cavity only, before any re-pressurization of the pipeline.
A body drain is provided in the lowest part of the body cavity and features a NPT drain valve with a safety plug.
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