Master Flo Valve Inc. unveiled a high-pressure/high-temperature (HP/HT) subsea choke valve, a pneumatic actuator, and a self-contained modulating choke during OTC at NRG Park in Houston, Texas, last week.
The new P4-20Ksi ultra HP/HT subsea choke valve is rated to 400°F (204°C) and 20,000 psig (138,000 kPa), with a design based on API 17TR8 and ASME Div 3. The new actuation product is its DSA-Series single-acting spring diaphragm actuator. Its large diaphragm area allows operation using low pneumatic pressures with an opposing spring providing either fail-closed (standard) or fail-open (optional) action. The HL2-Series self-contained low-power electro-hydraulic modulating choke provides a low-power consumption solution for automation in established or remote installations where there are both electric and hydraulic power supply limitations.