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. A body drain is located in the lowest part of the body cavity and consists of a Ό NPT drain valve with safety plug. Graphite rings are provided to guarantee full complianche with API 6FA and BS 6755 Part 2 Fire Safe Standards.
Standard Features
Size range: 1.5 to 4
ANSI Class: 150# to 1500#
Trunnion mounted
Double barrier stem seals
Stem separate from the ball
Anti-blow-out stem design
Stem emergency grease fitting
Low friction metal-backed self lubricating PTFE sleeve bearings and thrust washers
Plastic polymer insert for seat sealing
Self-relieving seats
Double-block-and-bleed
Sealant injection system for emergency seal
Factory positioned external stops
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
Double-piston-effect seat rings
Pressure relief valve in the body cavity to prevent pressure lock
PTFE spring energized lip seals for seat and stem sealing
Metal-to-metal seat sealing
Explosive decompression resistant seals (std for Class 600 and higher)
Anti-static device (optional)
SS or Inconel 625 overlay on sealing areas
Fire safe in accordance with API 607
