Subsea Oil & Gas Applications
High‑Performance Subsea Valves for Deepwater Control and Chemical Injection
BuTech subsea valves are engineered for deepwater environments and harsh media, delivering reliable instrumentation, process control, chemical injection, and ROV‑operated functionality across subsea panels, wellheads, and Christmas trees.
Available with API 6A and 17D/PR2 qualification options, these valves feature externally sealed designs rated for depths up to 14,000 ft (4,200 m), long‑life performance in demanding subsea conditions, and sour‑service manufacturing options aligned with NACE MR0175 for safe operation in corrosive environments.
High‑Pressure Leak Detection and Gas Testing Solutions
Haskel and BuTech provide reliable high‑pressure solutions for the pressure testing of subsea equipment, including wellheads, control lines, piping, pressure vessels, and critical subsea components.
Haskel air‑driven liquid pumps deliver accurate and consistent pressure generation for proof, burst, fatigue, and calibration testing, ensuring long‑term structural integrity and safe operation of large subsea valves, downhole tools, and system hardware.
Haskel pneumatic gas compressors enable precise high‑pressure leak testing by injecting a small percentage of helium into nitrogen lines, creating an effective trace‑gas method for identifying micro leaks and verifying pressure integrity while helping prevent hydrocarbon escape into the marine environment.







