Top entry ball valve

As the name already indicates you can enter the valve from the top. The body is made from 1 piece to minimize leak paths. The ball and seates are inserted from above. While the cover is also accessible while the valve is in the pipe line service & maintenance can be done much quicker than with a side entry design.

In the standard versions the valves are suitable for transmission pipelines, pumping, compression and re-injection units, offshore platforms, onshore terminals, pig traps, measuring stations and surge relief skids.
Whenever ball valves are used in critical service applications, in-situ field repairability with quick turnaround is often needed.

The top entry ball valves are full in-line field repairable, thus eliminating long down times.
Top entry ball valves have complete flexibility in the use of materials for body, trim and seal gasket selections.
For this reason, they can be trimmed to meet your most severe applications.
The top entry ball valves are sized to withstand the external loads from the pipeline or from the manifolds even when the bonnet, the ball and the seats are removed for maintenance. They can also be welded directly onto the pipeline or the manifold assembly.
The bonnet-body construction allows the use of various grades of carbon steel, stainless steel and other alloys thus complying with most severe service conditions.
The top entry ball valves can also be adapted for special applications such as abrasive fluids, low temperature service, sequencing service (low and high temperature), subsea installations and LNG plants.

Wegman offer the Grove BT1 and BT2 top entry ball valves

Category:

Grove

Grove was founded in 1934 in California by Marvin Grove, in 1971 Grove Italy was founded and became the HQ in 1986. A true pioneer in the industry: API 6D license #001, API 6DSS license #003.

Quick (stock) delivery possible for a selection of Grove valves

Grove trunnion mounted bolted body ball valves & welded body ball valves and through conduit slab gate valves.​
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Application areas: emergency shutdown, pigging, custody transfer, metering skids, risers, transmission pipelines, production plants, subsea, LNG, onshore, offshore, subsea, etc.​
​
B4        : API 6D forged bolted side entry 3-piece trunnion
mounted ball valve. (B4.B, B4.C & B4.D)​
Size     : 1” – 4”​
Rating : #150 – #1500 (incl. #400)​
​
B5       : API 6D forged bolted side entry 3-piece trunnion
mounted ball valve. ​
Size     : 6” – 60”​
Rating : # 150 – #1500 (incl. #400)​
​
B7       : API 6D forged bolted side entry 3-piece trunnion
mounted ball valve.  (B7.1 & B7.B)​
Size     : 1 ½” – 20”​
Rating : #2500​
​
B8       : API 6D forged welded side entry “3-piece” trunnion
mounted ball valve (B8, B8.1 & B8A)​
Size     : 2”- 60”​
Rating : #150 – #2500 (incl. #400)​
​
BT       : API 6D top entry cast trunnion mounted ball valve (BT1
& BT2)​
Size     : 1 ½” – 60”​
Rating : #150 – #2500​
​
G4N  & G7 : API 6D through conduit double block & bleed (DBB)
slab gate valve.​

BT2 Standard features

  • Triple barrier stem seals
  • Anti-Blow Out stem design
  • Stem and seats emergency grease fittings
  • Low friction metal-backed self lubricating PTFE sleeve bearing and thrust washers
  • Trunnion mounted ball
  • Primary Metal-to-Metal seal and protected secondary O-ring seal up to ASME Class 900, for the higher classes Plastic Polymer insert for seat sealing
  • Double Piston Effect seats (DPE)
  • Pressure relief valve in the body cavity
  • Nickel plating on pressure controlling parts and stem in function of the trim material
  • Body thickness in accordance with ASME B16.34
  • End Flange dimensions in accordance with API Standard 6D
  • Adapter plate with integral position indicator
  • Factory positioned external stops
  • In-line maintainable
  • API 6FA Fire Safe Design
  • Standard Design as per API 6D

Features upon request

  • Self-relieving seats and dual seat design
  • Lubricated seats
  • Special flanges or end connections in accordance with customer requirements
  • Special Face-to-Face and bore sizes
  • PTFE spring energized lip seals for sealing
  • Anti-static device
  • Metal-to-Metal seat sealing
  • Double-Block-and-Bleed
  • Features for vertical pipe installation
  • AISI 316 and Inconel 625 overlay on sealing areas
  • AISI 316 and Inconel 625 overlay on all overllay on all wetted areas
  • Explosive decompression resistant seals
  • NACE MR0175 / ISO 15156

BT1 Standard features

  • Triple barrier stem seals
  • Anti-Blow Out stem design
  • Stem emergency grease fitting
  • Low friction metal-backed self lubricating PTFE sleeve bearing and thrust washers
  • Trunnion mounted ball
  • Plastic polymer insert for seat sealing
  • Double Piston Effect seats (DPE)
  • Relief valve in the body cavity
  • Nickel plating on pressure controlling parts and stem in function of the trim material
  • Body thickness in accordance with ASME B16.34
  • End Flange dimensions in accordance with API Standard 6D
  • Adapter plate with integral position indicator
  • In-line maintainable
  • API 6FA Fire Safe Design
  • Standard Design as per API 6D

Features upon request

  • Self-relieving seats and duel seat design
  • Lubricated seats
  • Features for vertical installation
  • Special Flanges or End Connections in accordance with customer requirements
  • Special Face-to-Face and bore sizes
  • PTFE spring energized lip seals for stem sealing
  • Anti-static device
  • Metal-to-Metal seat sealing
  • Double-Block-and-Bleed
  • AISI 316 and Inconel 625 overlay on all sealing areas
  • AISI 316 and Inconel 625 overlay on all wetted areas
  • Explosive decompression resistant seals
  • Explosive decompression resistant seals
  • NACE MR0175 / ISO 15156
Need to let it flow? Call on Wegman!