Abstract: A pin and ring-type plug assembly for plugging a heat exchanger tube to provide a leak resistant seal is provided. The plug assembly is designed such that it can be used to form a high-pressure seal relative to a wide of range of tube inner diameters. The angle of taper of the pin varies along a length of the pin such that the angle of taper is steepest at or adjacent a nose section of the pin and is shallowest at or adjacent an end section of the pin.

Abstract: A bellows accumulator has at least one accumulator housing (2) and a separating bellows (20) movably arranged in the accumulator housing (2). The separating bellows 20 has a plurality of bellows folds and separates two media spaces (8, 22) from one another. The stationary open end of the separating bellows (20) is fixed to the accumulator housing (2) by a securing device (24). The separating bellows (20) has, at its movable other end, a closure part (36) having a guide device (40) by which the closure part (36) is guided in the accumulator housing (2). The closure part (36) has, in addition to the guide device (40), a sealing device (50). At least in the one extended end position of the separating bellows (20), the sealing device (50) separates a fluid space (8), in which the bellows folds are arranged in the accumulator housing (2), from a fluid port (12) in the accumulator housing (2). At least in some of the other working positions, the sealing device (50) releases this fluid connection.

Abstract: A vane stage includes an arcuate platform defining an axial centerline axis having a pair of flanges that extend radially inward from the platform. The flanges are axially spaced from one another and from respective forward and aft ends of the platform. The vane stage includes a vane extending radially outward from the platform and a seal carrier mounted to the flanges of the platform. A method for constructing a vane stage includes sliding a seal carrier between flanges of an arcuate platform. Each flange includes at least a pair of through holes and interfaces with a respective axial side of the seal carrier. The method includes drilling through holes in each axial side of the seal carrier by using the through holes of each flange as guides.

Abstract: A nested gas charged cartridge for insertion in a cylinder to reduce pulsations in a fluid pumping system includes a first gas cartridge and a second gas cartridge, and optionally a third gas cartridge. Each of the first, second, and third gas cartridges independently and cumulatively reduce pulsations entering the cylinder. A diameter of the third gas cartridge is less than a diameter of the second gas cartridge, which both are less than a diameter of a first gas cartridge.

Abstract: A trench-less plug assembly having a fluid release element, further including: a top retaining ring, a bottom retaining ring, a plurality of rods vertically connecting the top retaining ring to the bottom retaining ring. A retaining plug is adapted to traverse vertically along the plurality of rods, and a main fitting adapted for receiving the bottom retaining ring. A gasket is disposed between the main fitting and the retaining plug. The plurality of rods engage the retaining plug with threads, whereby the retaining plug is positioned vertically between the top retaining ring and the bottom retaining ring by rotational movement of the retaining plug. The main fitting is adapted to attach to a main pipeline, and the main fitting is adapted to receive a riser enclosing the fluid release element. In one example, the main fitting attaches to a main pipeline using a saddle.

Abstract: A protection assembly for mounting in an underwater support structure includes at least one bend protection device coupled to a retaining device so that together they provide a through-going passage for receiving an elongate member which is to be protected. The elongate member passes through a support structure opening, and the retaining device is configured to be received in the support structure opening and to engage with the support structure to resist subsequent withdrawal from it. Installation of the protection assembly includes grasping the protection assembly with a releasable clamp, arranging a pulling line to pass through the support structure opening to the mechanical clamp and securing the pulling line to the mechanical clamp, drawing the retaining device of the protection assembly into the support structure opening using the pulling line and engaging the retaining device with the support structure, and releasing the clamp from the protection assembly.

Abstract: A downhole valve to be used in a flow management system that comprises a valve inlet for coupling with a hydrocarbon reservoir pump outlet, a valve outlet for coupling with production tubing transport to the surface pumped hydrocarbons, a valve body with a valve body centerline that extends between the valve inlet and outlet, and a spill port for bypassing a backflow.

Abstract: A pipeline plug includes a plug body. The plug body includes an outer housing. The interior of the outer housing defines a pressure vessel. The pipeline plug includes a pressure head coupled to the plug body, a seal assembly, a gripper assembly, a movable head, and an actuation mechanism. The actuation mechanism includes a leadscrew, the leadscrew coupled to the movable head. The actuation mechanism includes a captive nut, the captive nut positioned within the pressure vessel. The actuation mechanism includes a motor, the motor operatively coupled to the captive nut and adapted to rotate the captive nut.

Abstract: A ventilation system comprises a ventilation fan with a lamp and a ceiling which has an installation opening. The ventilation fan with the lamp is adapted for installing to the ceiling through the installation opening. The ventilation fan comprises a housing, a fan module, and a lamp module. The housing includes a top plate and a side wall which are connected with each other to form a first opening. The first opening is aligned with the installation opening. The fan module is disposed in the housing. The lamp module is disposed out of the installation opening. The lamp module and the housing are located at opposite sides of the installation opening of the ceiling. The lamp module includes a light source, a base, at least one optical component, a switch and a lamp cover. The optical component and the switch are disposed at the different sides of the base.

Abstract: The invention relates to a tensioning ring (1) having a tensioning section (3), the tensioning section (3) comprising a wedge element (6), a guide member (7a) and a tensioning screw (5), wherein a width of the tensioning section (3) and thus a circumference of the tensioning ring (1) can be changed by tightening the tensioning screw (5), for which purpose the wedge element (6) is guided at the guide member (7a) and is movable in this guide along a movement way (20a) at the guide member (7a) by tightening the tensioning screw (5), the movement way (20a) having a portion in a width direction (4) determining the width of the tensioning section (3), wherein the wedge element (6) and the guide member (7a) engage in one another with an undercut in such a way that they are held together in a form-locking manner with respect to the width direction (4).

Abstract: A method of plugging at least one undesired opening in a fluid conduit can include introducing one or more plugging devices into the conduit, conveying the plugging devices by flow to the opening, and blocking the flow through the opening with the plugging devices. A system for plugging at least one undesired opening in a fluid conduit can include a deployment apparatus configured to introduce one or more plugging devices into the conduit, a sensor that measures a physical parameter indicative of leakage from the conduit, and a controller that activates an actuator of the deployment apparatus in response to receipt from the sensor of an indication of leakage from the conduit.

Abstract: A pressure accumulator having an accumulator housing (10) in which a movable separating element (16) separates a gas chamber (12) filled with a working gas from a fluid chamber (14) in a fluid-sealed manner. A monitoring device (46) is provided, which, in the event of a fault impairing the sealing effect of the separating element (16), provides an optically discernible indication and has an inspection window (54), through which an indicator can be observed. The monitoring device is connected to the gas chamber (12) and changes optical properties discernibly when wetted with the fluid. The indicator changing its optical properties is accommodated in a capsule (48) with a capsule wall (50) permeable to the passage of the fluid and arranged between the inspection window (54) and the separating element (16) in the accumulator housing (10).

Abstract: An embodiment of a fluid valve includes a substantially flat face plate, a receptacle, a cavity, and a valve assembly. The receptacle is disposed in the face plate and has at least one protrusion each configured to engage a respective at least one groove of a valve-opening-and-fluid-dispensing device. The cavity has a front end in fluid communication with the receptacle, and has a rear end. And the valve assembly is disposed in the cavity, includes a first sealing ring, is configured to form a seal by urging the sealing ring against the rear end of the cavity in response to the valve-opening-and-fluid-dispensing device being absent from the receptacle, and is configured to allow fluid to flow into the rear end of the cavity in response to the valve-opening-and-fluid-dispensing device being disposed in the receptacle.

Abstract: A method of obtaining the output flow rate of the flow rate controller according to an aspect is provided. The method including a first step of outputting gas whose flow rate is adjusted according to a designated set flow rate from the flow rate controller, in a state where the diaphragm mechanism is opened; a second step of adjusting the diaphragm mechanism so that the pressure in the second pipe is the target pressure value, in a state where the output of gas from the flow rate controller is continued in the first step; and a third step of obtaining the output flow rate of the flow rate controller by using a pressure value and a temperature value in the tank, after the pressure in the second pipe is set to the target pressure value in the second step.

Abstract: Aspects of the present disclosure relate to retainer nut locking apparatus and methods for fluid ends, and associated components thereof. In one implementation, a method of operating a fluid end includes installing a retainer nut assembly on a fluid end body by turning a retainer nut in an installation direction and into a bore formed in the fluid end body. The retainer nut has a first surface that faces away from the fluid end body and a second surface that faces that fluid end body. The method also includes rotating a locking tab in a locking direction and into contact with an inner surface of the fluid end body. The locking direction is opposite of the installation direction. The locking tab is disposed inside the bore and adjacent to the second surface of the retainer nut.

Abstract: Mass flow controllers and methods for controlling mass flow controllers are disclosed. A method includes providing a gas through a thermal mass flow sensor of the mass flow controller and processing a flow sensor signal from the thermal mass flow sensor of the mass flow controller to produce a measured flow signal. The measured flow signal is corrected to produce a corrected flow signal by gradually changing non-linearity correction to the measured flow signal when a flow rate of the gas changes. A valve of the mass flow controller is controlled using the corrected flow signal and a setpoint signal.

Abstract: A modular fluid spray nozzle is constructed from an inner conduit, having a sidewall with a center hole, housed inside a center conduit that includes a window defined by a sidewall, and a flexible or rigid outer conduit wrapped around the center conduit and forming a chamber with the rectangular window. The chamber is in fluid communication with the center hole and with at least two apertures defined by the outer conduit. The inner conduit is configured to be coupled to any type of conduit material, such as PVC pipe or another modular fluid hose segment.

Abstract: A bushing shield is used primarily but not exclusively in a commercial kitchen fire suppression system where pipes and EMT (electric metallic tube) carry detection line cables from a fusible link to a detection control. The bushing shield includes a guide bushing and a vapor barrier. The bushing shield minimizes grease vapors and foreign contaminant migration into a pipe or EMT of the commercial kitchen fire suppression system by forming a barrier, while simultaneously allowing the detection line cable to slide back and forth as intended by the fire suppression system manufacturer.

Abstract: Techniques for implementing and/or operating a pipeline system that includes a pipe segment and a pipe repair assembly. The pipe segment includes tubing having an inner barrier layer that defines a pipe bore through the pipe segment, an intermediate layer including solid strip wraps implemented around the inner barrier layer such that gaps are defined between adjacent solid strip wraps, and an outer barrier layer implemented around the intermediate layer. The pipe repair assembly includes an auxiliary patch secured at least across a break in a solid strip wrap in the intermediate layer of the pipe segment that is exposed by a hole in the outer barrier layer of the pipe segment; and outer material disposed over the auxiliary patch via an injection machine to fill the hole in the outer barrier layer of the pipe segment.

Abstract: A pulsation dampener for a dispensing system comprising a housing, a diaphragm comprising at least one fluoropolymer layer, the diaphragm dividing the housing into a first compartment and a second compartment, an inlet port and an outlet port each in fluid communication with the first compartment thereby providing a flow path for a liquid to enter the first compartment via the first inlet port and exit the first compartment via the outlet port, and at least one gas disposed within the second compartment, the at least one gas having a kinetic diameter of 0.36 nm or greater, wherein the fluoropolymer of the at least one fluoropolymer layer and the at least one gas are selected such that a gas transmittance rate of the at least one gas through the diaphragm is from 0 mbar*L/second to 1*10?5 mbar*L/second.