Parker Hannifin has launched a new range of small-bore subsea ball valves and subsea needle valves for leak-free and reliable, long-term performance in subsea applications up to 10,000 PSI (689 bar) and depths down to 3,050 m (10,000 ft).
Developed by Parker Instrumentation Products Division, Europe (IPDE) in response to the increasing challenges of oil and gas subsea exploration and production, these subsea valves can withstand long-term corrosion effects from high salt content seawater and perform in extreme temperature and pressure conditions, making them ideal for regions such as offshore Brazil, Gulf of Mexico, North Sea, West Africa, and Asia.
Parker’s small-bore subsea quarter-turn ball valve, featuring floating ball design, utilises the same field-proven design technology as the standard Parker’s Hi-Pro series ball valve. This small-bore subsea ball valve design additionally incorporates shaft and end adaptor O-ring ingress seals, which prevent the ingress of seawater to any threaded or rotating parts of the valve.
The 2-way small-bore subsea ball valve design features PEEK self-relieving seat for excellent resistance to chemicals, heat, and wear/abrasion and PTFE packing for increased cycle life and reduced operating torque.
Parker’s non-rising, non-rotating stem subsea needle valve features a metal-to-metal seat for bubble-tight shut-off, longer stem/seat life, greater durability for repeated on/off cycles and reinforced PTFE/PEEK chevron packing below stem threads for dependable stem and body sealing.
This subsea needle valve incorporates double O-ring stem ingress seals on bonnet housing to prevent water and silt ingress into the valve.