The XPC Series chokes feature a multi-orifice cage that provides an increase in flow capacity, a reduction in noise and downstream pressure recovery, as well as a greater cavitation index when compared to the more common module and seat design.

The XPC choke’s semi-pressure balanced design reduces stem loads and/or operating torque on opening. Cage design reduces negative force gradients on stem at small orifice setting. Throttling components of cage are tungsten carbide.

• Stem lock cannot damage stem threads
• Environment seal reduces marine corrosion on bonnet internals
• Grease fitting for maintenance of stem/bonnet threads
• Spring-energized, TFE-based seal ring provides for greater sealing integrity than V-packing while minimizing friction
• Semi-pressure balanced design reduces stem loads and/or operating torque on opening
• Cage design reduces negative force gradients on stem at small orifice setting
• Multi-orifice cage provides an increase in flow capacity, a reduction in noise and downstream pressure recovery, and a greater cavitation index when compared to the more common needle and seat design
• Throttling components of cage are tungsten carbide
• Extended seat length provides added wear protection to outlet