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Swagelok London

Your Authorised Swagelok Sales and Service Centre

GB Series General Service Ball Valve


GB Series General Service Ball Valve

Reduce installation, maintenance, and inventory costs while meeting pressures up to 6000 psig (413 bar) and full flow specifications.

  • Performance in the toughest applications.

  • Installation and design flexibility.

  • Corrosion resistance and compatibility.

You need a valve you can trust to provide reliable, safe performance in demanding environments. We have you covered. The GB series ball valve is designed to reduce installation, maintenance, and inventory costs while meeting your pressure and flow specifications, delivering the performance and quality you've come to expect from Swagelok® products. 

To satisfy a variety of applications, the GB valve comes in two sizes (8GB and 16GB) with a wide range of flow rates and end connection types and sizes. 

  • 8GB flow coefficients (Cv) from 2.5 to 10
  • 16GB flow coefficients (Cv) from 5 to 40 Specifications

Meet your specifications for pressure and flow in the most demanding applications with the GB series full-flow ball valve.

Full Flow Ball Valve (GB Series)


Suitable for the most demanding applications in the oil, gas, and process control industries, the GB series full-bore, full-flow ball valve increases the size range of our line of 6,000 psig (413 bar) valves up to 1 in (25 mm). The wide selection of materials (316SS, alloys 6-Mo, 2507, 625, 825, and C-276) reduces the risk of corrosion in harsh environments, while meeting a variety of specifications without deviation.

The GB series is also available with API 607 Fire Safety rating and can be configured for sour gas service with materials of construction selected in accordance with NACE MR0175/ISO 15156.


Working Pressure Up to 6 000 psig (413 bar)
Temperature -40 to 248˚ F (-40 to 120˚C)
Flow Coefficient 3.8 to 40
Body Materials 316 stainless steel, alloys 6-Mo, 2507, 625, 825, and C-276
Seat Materials PEEK
End Connections
Size 3/8 to 1 in.; 12 to 25 mm
Configurations On-off

View and purchase our most widely used products.

Discover more about how Swagelok products can work for you. Browse our catalogs or locate a sales and service center.

"Safe Product Selection: The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user.

Do not mix or interchange product components with those of other manufacturers."