Choke Valves
High ΔP and erosive-flow service with engineered trim materials and geometries.
Severe-Service Flow Control Valves — In-Line Valve
UK-engineered severe-service control valves since 2001. Choke, ball, gate, check, and severe-service control valves designed for the world's harshest oil & gas conditions — engineered first, costed second.
United Kingdom (founded 2001) 20+ years severe serviceEngineered FirstOverview
Severe-Service Flow Control Valves — In-Line Valve
In-Line Valve Co Ltd was established in the UK in 2001 and has since served major oil & gas operators across all continents. The product philosophy is straightforward: design valves for superior engineering rather than lowest capital cost, then prove them in severe-service applications.
The range covers choke valves, ball valves, gate valves, check valves, and severe-service control valves — applied where erosive flow, high differential pressure, sour service, or HP/HT duty puts conventional valves at risk.
JST supplies the In-Line range across Southeast Asia with technical sizing, material selection, and lifecycle support from selection through trim renewal.
Severe-Service Range
Choke, Ball, Gate & Control Variants
Engineered for erosive flow, high differential pressure, sour service, and HP/HT duty.
Severe-Service Ball Valves
Sour service and HP/HT duty with NACE-compliant trims.
Severe-Service Control Valves
Engineered trim for demanding throttling applications with predictable wear characteristics.
Gate & Check Valves
Robust isolation and non-return service for severe oil & gas duty.
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