The Grove split body side entry ball valves are manufactured in a wide range of sizes and pressure classes. In the standard versions these valves are specified for transmission pipelines, pumping, compression and reinjection units, offshore platforms, onshore terminals, pig traps, measuring stations and surge relief skids. In the special versions the valves are used for subsea installations and in LNG plants. The split body construction allows the use of forged materials in the various grades of carbon steel, stainless steel and high alloys, thus complying with the most severe service conditions.
Body Construction
The body is made of three forged parts and the bolted construction allows disasembly on-site for inspections and possible repairs. After maintenance, 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
Double 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
Triple barrier stem seals
Stem emergency grease fitting
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
Fire safe in accordance with API 607
