– High-strength forged steel construction- Designed for HPHT applications- Houses stem, packing, and bearing assemblies- Corrosion-resistant for offshore use
– FC, FL, FLS & FLS-R gate valve assemblies- Wellhead systems- Production and drilling manifolds- Offshore and subsea operations
Temperature Ratings :K,L,P,S,T,U,V
Material Class:AA,BB,CC,DD-NL,EE-NL,FF-NL
API Designation 75K,197-237HBW
Size:1″ – 6″ Inch
Working Pressure: 2.000-15.000 psi
At Kriloha Ltd., we supply Bonnets for FC, FL, FLS, and FLS-R Valves, essential components that secure the valve stem, packing, and bearing assemblies while forming a critical pressure-containing barrier. The bonnet ensures that the valve remains structurally sound under HPHT (high-pressure, high-temperature) operating conditions, making it indispensable in oilfield valve assemblies. Our bonnets are manufactured from forged alloy steels, precision machined to meet API 6A standards for dimensional accuracy and sealing performance. Each bonnet is treated with corrosion- and wear-resistant finishes, enabling reliable operation in harsh offshore environments, subsea applications, and high-cycle production systems. Applications include wellhead assemblies, production manifolds, pipeline isolation valves, and drilling equipment, where bonnet integrity is vital for sealing and pressure containment. At Kriloha Ltd., each bonnet undergoes hydrostatic pressure testing, non-destructive examination (NDE), and thermal endurance checks to guarantee reliability. These bonnets are compatible with multiple styles (FC, FL, FLS, and FLS-R), ensuring interchangeability and simplified maintenance across valve fleets. As both a supplier and facilitator, Kriloha Ltd. supports operators with spare part management, compatibility verification, and custom material solutions, ensuring long-term valve reliability. By choosing Kriloha Ltd., clients secure durable, precisely engineered bonnets that extend valve service life, reduce downtime, and guarantee safe well operations in the world’s most demanding oil and gas fields.