Valve plugs having curved notches are described herein. An example valve plug includes a first section defining a first end, a second section defining a second end opposite the first end, and a third section located between the first and second sections, the third section including a curved notch formed inwardly from a periphery of the third section toward a longitudinal axis of the valve plug defined by the first, second and third sections.

Described embodiments include a system and a method. A described system includes a pipeline system. The pipeline system includes a transportation conduit containing a natural gas hydrate flowing from a first geographic location to a second geographic location. The pipeline system includes a cooling conduit running parallel to the transportation conduit, and having a heat-transfer surface thermally coupled with the flowing natural gas hydrate. The cooling conduit contains a heat-transfer fluid flowing between the first geographic location and the second geographic location. The flowing heat-transfer fluid has a target temperature range predicted to maintain a selected stability of the flowing natural gas hydrate.

A method and apparatus are presented. An active flow control system comprises a flow control valve, a manifold, and a temperature control system. The flow control valve is configured to control a flow of air into the manifold. The manifold is operatively connected to a number of actuators. The temperature control system is configured to heat at least a portion of the flow of air.

An automatic control element has a sprinkler, a fluidic element connected to the sprinkler, and an outlet cover plate secured onto an outlet of the fluidic element. The fluid element further has a water inlet and a first air supply pore are symmetrically arranged on it. A second air supply pore is on the water inlet. A water distributor is formed on the sprinkler, a water tank is provided on the outer side of the sprinkler, and the water distributor is in communication with an inner cavity of the water tank. A signal nozzle is provided on the wall of the water tank, and the signal nozzle is connected to the water inlet via a conduit.

A gas compression system and a method of flow conditioning by a gas compression system are provided. A gas compression system includes a compact flow conditioner in a form of a flow conditioner tank and a combined multi-phase pump and compressor unit comprising an impeller configured to compress a mixture of gas and liquid, wherein the gas compression system is configured such that the gas and the liquid are separated in the flow conditioner tank, the separated gas and liquid are sucked up through the separate gas and liquid pipes and re-mixed again upstream of the impeller, and the liquid is distributed in a gas flow by Venturi effect, and wherein the Venturi effect is obtained by a constriction in the outlet pipe to the impeller, just upstream of the impeller.

A fluid distributor unit comprising a channel system where one or more inlet channels (2) starting on an inlet side (3) of the distributor unit branch out successively into several channels (6) ending on the other side of the distributor unit, called the outlet side (4), characterised in that said distributor unit is provided in one single body (1) by free form fabrication.

A fluid distributor unit comprising a channel system where one or more inlet channels (2) starting on an inlet side (3) of the distributor unit branch out successively into several channels (6) ending on the other side of the distributor unit, called the outlet side (4), characterised in that said distributor unit is provided in one single body (1) by free form fabrication.

A fluid distribution apparatus and a fluid distribution module with choke are provided. The fluid distribution apparatus includes a first fluid conveying pipe, a second fluid conveying pipe, multiple fluid manifolds located between the first fluid conveying pipe and the second fluid conveying pipe and connected with the first fluid conveying pipe and the second fluid conveying pipe, an inlet disposed on a side of the first fluid conveying pipe and between both ends of the first fluid conveying pipe; and an outlet disposed on a side of the second fluid conveying pipe and set corresponding to a position where the inlet is set. The fluid is supplied from the inlet to the first fluid conveying pipe, and the fluid is conveyed to the fluid manifolds along the first fluid conveying pipe, and flows into the second fluid conveying pipe through the fluid manifolds and flows out from the outlet.

A fluid distributor unit comprising a channel system where one or more inlet channels (2) starting on an inlet side (3) of the distributor unit branch out successively into several channels (6) ending on the other side of the distributor unit, called the outlet side (4), characterised in that said distributor unit is provided in one single body (1) by free form fabrication.

A fluidic control valve configured to control a flow of fluid through a conduit includes a piezostack actuator, a seal plate having a sealing face, an orifice plate including a plurality of orifices, and a suspension connected to the seal plate. The piezostack actuator is configured to displace the seal plate along a longitudinal axis of the conduit between a closed position, in which the sealing face engages the orifice plate, seals the orifices of the orifice plate and closes the valve, and an open position, in which the seal plate is displaced from the orifice plate to open the valve. The suspension is configured to flex and adjust an orientation of the sealing face relative to the orifice plate during movement of the seal plate from the open position to the closed position.