Particle build-up prevention in flowing systems

Particle build-up prevention in flowing systems

Particle-based check valve

Passive fluid level controller

Passive surge control method for compression systems and...

Peelaway type rollover valve element

Peltier based freeze-thaw valves and method of use

Perforating gun pressure bleed device

Performance-based control system

Permanent label for gas flow devices

Permeable gas assembly for gas delivery

Permeable gas assembly for gas delivery

Permeable gas assembly for gas delivery

Petroleum stream control system and method

Piercing valve assembly for pliers

Piezo-resistive position indicator

Piezoelectric pressure control valve

Pilot stage or pressure control pilot valve having a single...

Pilot switching valve apparatus and a method of switching...

Pilot valve with improved cage