J B Valves

Ball Ball Ball
Double Block & Bleed Valves.

Subsea Valves
with a difference.


Ball valve isolation within a compact single piece or bolted package. Single piece and bolted configurations can be offered in Flange by Flange or Flange by Thread configurations.

Monoblock multi valve isolation assemblies are designed to reduce leak paths & improve operational safety factors. Monoblock solutions are designed to replace conventional multi valve constructions. Fatigue and strain from large assemblies is reduced significantly by using close coupled manifold systems.

Process Connections

JB Valves manufacture to client specifications. API, ASME, ANSI, DIN, & threaded connections can be manufactured to order.


316, Duplex, Super Duplex, Inconel 625, Incoloy 825, Monel, 6Mo, LF2, other materials available on request. 


  • 1/4 Turn Ball Valves are lockable as standard.

  • Bi-directional Isolation.

  • ASME B16.34 Compliant where applicable.

  • 4:1 Safety factor.

  • Bubble tight shut off.

  • Anti blow-out stem.

  • Self relieving floating ball.

  • Low operating torque.

  • 100% Data Capture Hydraulic Testing.

  • LP Air Test as standard.

  • End Connector threads are non wetted.

  • Anti static by design.

  • Fire safe designed to meet ISO 10497 & API 607 / 6FA.

  • Pressure rating CWP up to 10,000psi / Class 2500.

  • Fugitive emissions sealing options.


Pressure RangesASME Class 150 - 2500
API 3K, 5K & 10K
Size Range1/2” to 3”
Valve ConfigurationsSingle Block & Bleed
Double Block & Bleed
Temperature Ratings-40 °C to 235 °C (NON Graphite)
Flange TypesRF (Raised Face),
RTJ, (Ring Type Joint) API Flanges to be specified by purchaser
Isolation Bore Size13mm to 50mm

Contact J B Valves

We can build powerful solutions, which are more advanced than ever. If you are interested working with our forward thinking & dynamic team call us on +44 1484 509 888.