Abstract: The present invention relates to a hydraulic unit with a housing in which a hydraulic converter is accommodated, which is coupled with a drive shaft that includes a connecting shaft piece located outside the housing for connection to a mechanical drive element The invention furthermore relates to a hydraulic driving device with such hydraulic unit and to a drive train connecting piece to which the hydraulic unit is connected. It is proposed to integrate a clutch for connecting and disconnecting the hydraulic unit into the hydraulic unit itself, so that a mechanical drive train, to which the hydraulic unit is connected, can remain unchanged or need not especially be adapted to the clutch. In accordance with the invention, a clutch for coupling and uncoupling the connecting shaft piece of the hydraulic unit to and from the hydraulic converter of the hydraulic unit is accommodated in the housing of the hydraulic unit.

Abstract: A continuously variable transmission (CVT) is provided, where the CVT has an input shaft drivable by an engine, and an output shaft connectable to a load. A variator has an input side connected to the input shaft, and an output side. The variator is adjustable so as to vary a transmission ratio between the input and output sides. A differential transmission has a first differential input element connected to the input shaft, a second differential input element connected to the output side of the variator, and first and second differential output elements. A range transmission has a first range input element, and at least one range output element connected to the output shaft. A first connecting component selectively connects the first differential output element to the first range input element. A second connecting component selectively connects the second differential output element to the first range input element.

Abstract: A structural member of a vehicle includes a metal body, a first resin layer and a second resin layer. The metal body is made of metal. The first resin layer is provided on the metal body in a layering direction and includes a first thermoplastic resin. The second resin layer is provided on the first resin layer in the layering direction and includes a second thermoplastic resin and carbon fiber.

Abstract: Methods and systems are provided for a crankshaft damper cover for a crankshaft damper of a crankshaft in an engine. In one example, a crankshaft damper cover shaped to fit within a cavity of a crankshaft damper and including an inset and an annular ring embedded within the inset, where the annular ring includes tabs adapted to mate with an inner surface of the crankshaft damper. As one example, the inset may be comprised of a damping material, such as plastic or foam.

Abstract: In a standard gear unit, which, in a first variant, is implemented with an output-side bearing and an outgoing shaft, and which, in a second variant, is able to be implemented with an intermediate flange inserted at the bearing position of the output-side bearing, the intermediate flange is formed such that, with an associated, differently formed outgoing shaft, a robot interface or flange block interface is able to be formed on the output side.

Abstract: A breather device that is attached to a case of a transmission and performs ventilation in the case, includes: a main body member including a storage portion with a closed bottom and an open upper end; and a cover member configured to close the upper end of the main body member and including a vent hole for ventilation to outside. The storage portion comprises a first chamber having, in a bottom portion, a communicating port communicating with an interior of the case, and a second chamber configured to receive a liquid entering from the vent hole.

Abstract: A motor vehicle vacuum driven hydraulic balance system includes a housing. A shaft rotatably supported in the housing has a longitudinal bore to deliver oil flow to a plurality of ports created in the shaft. A vacuum flow passage communicates with both the longitudinal bore and an oil sump. A first delivery passage is created in a portion of the housing, the first delivery passage in direct communication with the longitudinal bore. An electrical oil pump pumps oil from the oil sump to the longitudinal bore through the first delivery passage. Axial rotation of the shaft creates a partial vacuum in the longitudinal bore acting to vacuum drag oil from the oil sump through the vacuum flow passage to the longitudinal bore in addition to a volume of the oil delivered to the longitudinal bore by the electrical oil pump.

Abstract: A shifter assembly includes a shift lever, a base, a coupling member having a toothed member and pivotably coupling the shift lever to the base, and a speed sensitive damping arrangement housed in the base. The damping arrangement includes a housing associated with the base and defining an internal cavity, a shaft disposed in the cavity and having an end extending from the housing, and a gear coupled to the shaft end extending from the housing and configured for rotation therewith, where the gear is meshingly engaged with the toothed member of the coupling member such that pivotable movement of the coupling member rotates the gear and the shaft. The gear is configured to rotate faster than the shift lever such that damping to movement of the shift lever provided by the damping arrangement is proportional to a square of a speed of movement of the shift lever.

Abstract: A pushbutton shifter interface is provided that includes a movable assembly supporting a plurality of pushbutton keys. The pushbutton shifter interface also includes a proximity sensor arrangement configured to sense a user proximate the pushbutton keys and interfacing with one of the keys and an actuator actuating the movable assembly to a use position in response to sensing the user proximate the pushbutton keys. The pushbutton shifter interface further includes a display showing a sensed position of the user relative to the plurality of pushbutton keys.

Abstract: An abnormality detection device for a hydraulic circuit including an oil pump, a switching unit switching between a fully discharged state and a partial discharge, a pressure regulator, a pressure regulation controller and a hydraulic detector, The device includes: a storage storing a maximum discharge pressure of oil capable of being discharged in the partially discharged state; a switching controller performing control of switching into the fully discharged state; and a determination unit determining that the switching unit has a fixation abnormality of the partially discharged state when a hydraulic pressure approximately corresponds to the maximum discharge pressure in the partially discharged state in a state where a hydraulic pressure higher than the maximum discharge pressure in the partially discharged state is set as a target hydraulic pressure and the pressure regulator is controlled to achieve the target hydraulic pressure after the switching control.

Abstract: A vehicle makes a notification to prompt a driver to perform a predetermined operation in a case in which a predetermined function of the vehicle is lost, and starts a recovery operation of the function on condition that the predetermined operation is performed.

Abstract: A method of providing improved control and response to an electronic transmission range selection system comprehends providing a virtual null position for the electronic transmission range selection device including the steps of determining the current position of the shift lever, confirming the position of the shift lever, virtual Null and physical Reverse to Neutral confirmation timer thresholds are selected, the timers are incremented, a determination is made that the timers have started, a determination is made that the virtual Null timer has expired, whereupon a virtual Null request is generated. Subsequent steps determine if the physical Neutral timer has expired and command the transmission to Neutral. In related method steps, a current range of the transmission is determined, the state of a shift interlock button is determined, and certain shift changes are accepted or rejected.

Abstract: A selector includes a lever guide, an operating lever, and a stopper. The lever guide has first and second movable-path slits therein. The first movable-path slit extends from a first position to a second position along a first direction. The second movable-path slit extends along a second direction different from the first direction as to intersect the first movable-path slit at an intersection position. The second movable-path includes a third position. The operating lever is movable in along the first and second movable-path slits. The operating lever is configured to move to the first position through the first and second movable-path slits. The stopper slides and contacts the operating lever when the operating lever moves from the third position to the first position. The stopper slides and contacts the operating lever when the operating lever moves from the first position to the third position.

Abstract: A motor controller includes a first forward driver rotating a motor in a forward rotation direction, a torque short determiner determining short of a switch torque, a backward driver driving the motor up to an extreme position in the backward rotation direction in a switch torque short case, and a second forward driver rotating the motor from the extreme position to a target position. When the second forward driver drives the motor, a drive objet is rotated not only by a motor torque but also by a twist backlash torque from a rotation transmission part. Further, after a rotation of the motor in the forward rotation direction, the backward rotation operation of the motor is performed only in the switch torque short case, thereby reducing a shift position switch time in a switch torque sufficient case.

Abstract: A hydraulic control system for a transmission is provided. The hydraulic control system provides a latching system to retain CVT clutch pressure and/or pulley pressure for one or more CVT torque transmitting mechanisms and/or CVT pulleys in a CVT transmission. Components of the hydraulic control system of the present disclosure may include blow off valves, such as ball check-valves, on the exhaust of the pulley control valves and the exhaust of the CVT clutch control valve(s), and a one-way valve, such as a supply ball check-valve, disposed adjacent to each of the fluid supply inlets of the pulley control valves and the fluid supply inlet of the CVT clutch control valve(s).

Abstract: Disclosed is a shifting execution mechanism for a dual clutch transmission, including a front shell, a rear shell, at least two hydraulic cylinders and at least one connecting sleeve. The at least two hydraulic cylinders are mounted along the same axis, two ends of the hydraulic cylinders are clamped between the front shell and the rear shell. Each hydraulic cylinder is mounted with a shifter, a positioning seat, and two sealing plates. Every two adjacent hydraulic cylinders are connected together through one connecting sleeve. A first hydraulic chamber is defined between the connecting sleeve and the sealing plate located adjacent to the connecting sleeve in each hydraulic cylinder. A second hydraulic chamber is defined between the front shell and the sealing plate located adjacent to the front shell. A third hydraulic chamber is defined between the rear shell and the sealing plate located adjacent to the rear shell.

Abstract: A gasket (20) is provided with a uniform thickness spacer layer (66) between two metal upper active layers (78, 80) and two lower active layers (82,84). Each of the layers has aligned openings. A first tab (158, 140) is formed from one of the upper active layers and is located in a first slot (168) in the spacer layer. A second tab (132, 150) is formed in a flange of one of the upper active layers and is located in a second slot (174) located in the spacer layer. A third tab (190, 208) is formed from one of the lower active layers and is located in a third slot (212) located in the spacer layer. A fourth tab (176, 194) is formed in a flange of one of the lower active layers and is located in a fourth slot (218) located in the spacer layer.

Abstract: A self-cleaning drum washing machine, comprises a coaxial drum and outer tub. Cleaning particles are arranged between the drum and the outer tub. Structures between the drum and the outer tub opposite to each other are smooth. A flange is fixedly connected to the bottom of the drum; the outer portion of the flange has a smooth structure or an enclosed cavity is arranged on the outer portion of the drum bottom; the flange is arranged in the cavity; a shaft hole is arranged at the center of the cavity; and a drum shaft sticks into the cavity through the shaft hole and is connected to the flange. The smooth structures go against the attachment of dirt, so that the outer wall of the drum and the inner wall of the outer tub can be conveniently cleaned by the cleaning particles.

Abstract: Aspects of the disclosure are directed to a brush seal assembly, comprising a compressible core, at least one wire wound around the core, and a backing plate that is substantially ‘c’ shaped or ‘u’ shaped that at least partially encases the at least one wire. Aspects of the disclosure are directed to a method comprising separating compressible cores with a spacer, winding wires around the cores and the spacer, and forming substantially ‘c’ shaped or ‘u’ shaped backings about the wires to obtain a package of brush seal assemblies.

Abstract: In an embodiment, a mechanical seal device has a mating ring (131) that rotates with a rotating shaft (101), as well as an opposing seal ring (133) that slidably contacts the mating ring (131), so as to seal between the rotating shaft (101) and a seal cover (105) fixed to an equipment main body (102); wherein the seal cover (105) is a split structure comprising at least a first seal cover (107, 108) and second seal cover (106), the first seal cover (107, 108) is detachably connected in the axial direction by leaving the second seal cover (106) free from it, and the seal ring (133) is connected to the first seal cover (107, 108) in a securely following manner.

Abstract: A non-contact seal assembly includes a plurality of seal shoes, a seal base and a plurality of spring elements. A first of the spring elements includes a first mount, a second mount and a spring beam. The spring beam extends a length longitudinally along a centerline from the first mount to the second mount. The spring beam includes opposing first and second surfaces. The first surface is disposed a first distance from the centerline, and the second surface is disposed a second distance from the centerline. The first distance and the second distance change as the spring beam extends longitudinally along the centerline to provide at least a portion of the spring beam with a tapered geometry. The portion of the spring beam has a longitudinal length that is at least about five percent of the length of the spring beam.

Abstract: A control damper for a housing of an air-handling unit includes a rigid main body rotatable about a first rotational axis. A sealing element extends radially outwardly from a first side of the rigid main body. The sealing element is formed of a resilient material. The sealing element further includes a resilient lip extending outwardly from a distal end thereof. The lip has a first series of undulations formed in an outer edge thereof, wherein the undulations form a wave-shaped profile in the outer edge of the lip.

Abstract: In a valve apparatus, an annular contact portion made of elastic material is provided on a valve portion of a valve plug. A plurality of annular grooves are formed on a proximal end surface of a valve seat member which abuts against the contact portion. The annular grooves are formed around a communication hole through which fluid flows. The annular grooves have different diameters, and are concentric with one another.

Abstract: Embodiments disclosed herein provide systems and methods for an in-ground sprinkler to controller a liquid flow rate through a chamber, while reducing or eliminating leakage. Embodiments may utilize a flat, external surface that is configured to be flush with a ground surface to control the liquid flow rate through the in-ground sprinkler. In embodiments, a permanent magnet may be positioned on the flat, external surface to control an internal patch system. Responsive to the permanent magnet controlling the internal patch, liquid flowing through the chamber may be controlled.

Abstract: A rotary valve comprising a stator with an inner stator face, and a rotor with an inner rotor face arranged in sealing contact with the inner stator face, the rotor is rotatably movable to a plurality of rotor positions about a rotational axis relative to the inner stator face, the stator comprises a plurality of connection ports each being in fluidic contact with a corresponding valve orifice at the inner stator face and the rotor comprises two or more interconnection paths for selective fluidic interconnection of said valve orifices with respect to the rotor position, wherein the stator comprises, an inlet port, an outlet port, a component feed port, a component return port, and wherein the interconnection paths in the rotor are arranged to: in a first rotor position interconnect the inlet port with the outlet port, in a second rotor position interconnect the inlet port with the component feed port and the component return port with the outlet port, in a third rotor position interconnect the inlet port with

Abstract: The device comprises an internal distributor to be disposed in a casing portion (10A), and comprising a body (15) that has an outside axial face (15B) provided with two grooves (17, 19) respectively for feed and for discharge. The distributor has distribution ducts (23A, 23B, 23C) that open out in a distribution radial face and a cylinder capacity selector that comprises a slide (50) suitable for being moved in an axial bore (53) for connecting the distribution ducts to one or the other of the grooves. The device further comprises a control chamber (52) provided between a first end wall (15?) of the bore and the first end (50A) of the slide, and an opposing spring (55) disposed in a return chamber (52?) situated at the second end (53?) of the bore and closed, at the end closer to the distribution face (15A), by a second end wall (55?) of the distributor.

Abstract: A check valve includes a plate-shaped valve seat member provided with a fluid discharge port, a plate-shaped valve member provided on a downstream side of the valve seat member and configured to open/close the discharge port, a coil spring provided on a downstream side of the valve member and configured to bias the valve member toward the discharge port, a spring receiving member provided for the coil spring on a downstream side thereof, and a plurality of guide rods provided at the periphery of the valve member and formed to extend in an upstream-to-downstream flow direction, each having a downstream end portion attached to the spring receiving member, and configured to guide the valve member in the upstream-to-downstream flow direction.

Abstract: Systems are provided for a noise attenuation device for a valve. In one example, a system may include a single noise attenuation device located below a base of a fill limit vent valve.

Abstract: A sanitary hydrant comprises an isolated reservoir that can be positioned below a freeze level at the location of installation. A piston within the isolated reservoir is operable to expel, during a downward stroke, stored fluid from the reservoir before actuating a valve that allows fluid to flow from a fluid supply source through the hydrant. On an upward stroke, the piston releases the valve and generates a negative pressure within the reservoir that draws fluid from within the hydrant into the reservoir.

Abstract: A latch assembly is disclosed. The latch assembly comprises a top latch portion, a spring, and a valve rod guide. The top latch portion has two prongs with the spring positioned therebetween. The valve rod guide has two corresponding notches to receive the two prongs. When the top latch portion is lowered toward the valve rod guide, the spring compresses against the northern end of the valve rod guide and the prongs engage the notches on the valve rod guide, thus firmly coupling the top latch portion to the valve rod guide. The latch assembly may also have a stabilizer, such as a collet adapter, coupled to a northern end of the top latch portion. The latch assembly may be used with a valve rod or a hollow valve rod.

Abstract: A single one time use valve, based on a Shape Memory Alloy (hereinafter—SMA) actuating component, wherein the valve comprises a nipple component given to shearing and shoving from the instant of its being severed off, in a manner that enables passage of the gas or the liquid from the valve's inlet flow opening to the valve's outlet flow opening wherein the valve is a valve of the normally closed type, or enables stopping of said gas or liquid passage from the inlet flow opening to the outlet flow opening, wherein the valve is a valve of the normally open type, and wherein the valve is characterized by that the inlet flow opening and outlet flow opening are formed substantially on at least one plain, that extends in its direction wherein it is substantially orthogonal to the valve's house assembly lengthwise axis and wherein a physical demarcation exists all the time between the gas or liquid to the valve's SMA made actuating component.

Abstract: Actuator for actuating a valve device comprising an electric drive (14) being operatively engaged to an actuating element (1) of the valve device, the electric drive (14) comprising at least one torque motor (2) which drives a hollow shaft (3) as an internal rotor, that positions a threaded drive (4) having a screw nut (6) and a threaded spindle (5) for converting the rotational movement of the hollow shaft (3) into a translational movement of the threaded spindle (5), and the threaded spindle (5) acts upon the actuating element (1) for displacing the same, wherein the threaded drive (4) comprises an inverted roller screw (4.1), and the screw nut (6) of the inverted roller screw (4.1) houses the threaded spindle (5) as a push rod.

Abstract: A solenoid valve includes a body having a flow channel, and a solenoid part coupled to the body. The solenoid part includes a core housing. A movable core can be accommodated inside the core housing. A flange part of the core housing is expanded radially outwardly from a guide part which guides the movable core. Further, a thick portion is provided at a boundary portion between the flange part and the guide part on a core part side. The thick portion becomes gradually thick toward the guide part.

Abstract: The invention relates to an electrically operable valve with an electrical coil and with several spring tongues, which are movable by means of a magnetic field generated by the coil between a first switch position and a second switch position each and with several first valve openings, which are opened when the spring tongues are in the first switch position and which are closed by means of the spring tongues when the spring tongues are in the second switch position.

Abstract: A regulating device may include a housing that defines an inlet chamber and an outlet chamber, with a flow restriction seat between the inlet chamber and the outlet chamber. A flow restriction valve is movable relative to the flow restriction seat to adjust the flow between the inlet chamber and the outlet chamber of the regulating device. A servo valve having a servo chamber may be used to adjust the position of the flow restriction valve. The servo chamber may be fluidly coupled to the inlet chamber though a fixed flow restriction and to the outlet chamber though an adjustable flow restriction. A stepper motor may be used to adjust the servo valve to adjust the adjustable flow restriction between the servo chamber and the outlet chamber. This causes a change of the servo pressure, which moves the flow restriction valve and adjusts the flow of the regulating device.

Abstract: A servovalve (15) comprising a motor (16), a motor bias mechanism (20), a first stage valve member (22) adapted to be moved from a first position to a first off-null position, a second stage member (29) adapted to be moved from a first position to a second position with movement of the first valve member (22), a transfer link (34) acting between the first (22) and second (29) valve members, an eccentric drive member (35) acting between the motor (16) and the transfer link (34), the transfer link (34) and drive member (35) configured such that selective movement of the motor (16) causes the transfer link (34) to move the first valve member (22), movement of the first valve member (22) causes the second valve member (29) to move, and movement of the second valve member (29) causes the transfer link (34) to move the first valve member (22) from the first off-null position back to the null position.

Abstract: A marine pipeline installation vessel and a method are provided for laying an offshore rigid pipeline in the sea, the vessel at least being adapted to carry out the rigid reel lay method. The vessel includes at least one vertical storage reel for the storage of a spooled rigid pipeline. A left and right reel support structure are provided to support the weight of the at least one storage reel. The left and right support structures are embodied to form a pivoting structure allowing an angular adjustment of the horizontal reel axis about a vertical axis to alter the angular position of the at least one storage reel.

Abstract: This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

Abstract: A hose shroud comprises a tube formed from an aramid fabric rolled into a plurality of tubular layers. The hose shroud has a first end fitting at a first end of the tube, and a second end fitting at a second end of the tube.

Abstract: There is illustrated and described a plastics material hose comprising: a hose wall of plastics material, and an electrical conductor, wherein the electrical conductor is constructed as a braid having a plurality of fibres. In order to achieve compensation for and reliable discharge of electrical charge concentrations with specific disadvantages being avoided, it is proposed that the braid have at least one carbon fibre.

Abstract: The invention relates to a coupling which includes at least: a tubular coupling member suitable for receiving a pipe and comprising one or more annular ribs, and a crimping ring arranged on the coupling member and translatably movable between a position for inserting the pipe into the coupling member, and a crimping position, in which the crimping ring immobilizes the pipe relative to the coupling member after the deformation of the one or more ribs. Recesses are formed between the coupling member and the pipe in the crimping position. The coupling has at least one exhaust opening arranged such as to provide fluid communication between said at least one recess and the outside of the coupling.

Abstract: A weldless thru wall fitting that provides a leak free connection to a vessel that can easily be installed and removed. The fitting also provides an integrated, removable, and repositionable dip tube to allow the liquid stored in the vessel to the drained via gravity to a level below the entry point of the fitting.

Abstract: A pipe coupler includes a first jaw member, a first jaw extension, a second jaw member defining an open channel, a mounting board, a ratchet, and a first biasing member. The first and second jaw members are hinged to each other. The mounting board extends outwardly from the open channel of the second jaw member. The first jaw extension extends from the first jaw member, and is configured to extend into the open channel. The first jaw extension has a plurality of rack teeth. The ratchet is rotatably mounted on the mounting board, and has a plurality of ratchet teeth configured to mesh with the rack teeth. The first jaw extension is permitted to drive the ratchet to rotate unidirectionally against a first biasing force of the first biasing member.

Abstract: A pipe connector for connecting pipes that includes an elongate tubular body having an outer diameter, a sleeve disposed over the elongate tubular body, and a first wire ring. The elongate tubular body that has a groove formed on the outer diameter. The sleeve has a groove formed on an inner diameter that is spaced from a first end of the sleeve and is aligned with the groove of the elongate tubular member. The first wire ring is disposed within the groove of the elongate tubular body and within the groove of the sleeve such that the sleeve is coupled to the elongate tubular body by the first wire ring.

Abstract: Provided is a hose connector that is protected from inadvertent disconnection, and permits any problem with the hose connection to be readily detected. The hose connector (10) includes a connector main body (12), and a lock member (14) fitted on the connector main body. When the lock member (14) is displaced to a locked position, an annular reduced diameter portion (42) of the lock member (14) approaches an annular enlarged diameter portion (24) of the connector main body (12) so that these two portions clamp the wall of the hose. The lock member (12) is held in the locked position by a second engagement portion (38) formed in the inner circumferential surface of the lock member (12) engaging the connector main body (12).

Abstract: Provided is an adapter configured for use with an aerosol can spray nozzle and an extension tube. The adapter is configured to fit onto an extension tube and to receive a second extension tube to provide a more rigid and fluidly secure connection between the extension tubes. The adapter includes a portion for a first extension tube and a second extension tube portion. Each extension tube portion includes an inner channel extending therethrough, and is sized and configured to allow the extension tube to be insertable therein to create friction-tight engagement between the extension tube and the adapter.

Abstract: Provided is a connection mechanism for connecting a tube through a joint to a housing of a valve. At least one of the housing of the valve and the joint is made of a resin. The housing of the valve includes a connection hole for inserting and connecting the joint, and pin insertion holes which is drilled from an external surface of the housing in a direction orthogonal to an axial direction of the connection hole, and penetrates through the connection hole. An annular groove is formed along a circumferential direction of an outer peripheral surface of the joint. In an insertion state of the joint into the housing, the pin is inserted from the pin insertion holes on the external surface of the housing. The pin passes through the annular groove disposed on the joint and comes into engagement with the joint.

Abstract: A quick connector includes paired first legs having a first push-in inhibiting protrusion, and paired second legs having a second push-in inhibiting protrusion. Although the first push-in inhibiting protrusions inhibit the push-in movements of a retainer in a state before a pipe is inserted, they do not inhibit the push-in movements of the retainer in such another state as the pipe is located at a midway position. The second push-in inhibiting protrusions inhibit the push-in movements of the retainer in the other state where the pipe is located at the midway position.

Abstract: The absorbing device includes a hollow enclosed chamber including two pot parts. Open ends of the pot parts are connectable to each other by welding or soldering. Each of the pot parts is integrally formed in an opposing end of an air-conditioning conduit, wherein open ends of the pot parts are oriented toward each other. Each of the pot parts is provided with a reduced passage opening interconnected with an internal space of the air-conditioning conduit via a tapered section.

Abstract: Methods and systems for cleaning, coating and sealing leaks in existing nonmetal pipes, in a single operation. A nonmetal piping system can be cleaned in one pass by dry particulates forced and pulled by air throughout the piping system by a generator and a vacuum. Nonmetal pipes with nonmetal fittings or nonmetal pipes with metal fittings or nonmetal pipes with a combination of metal and nonmetal fittings can be protected from wear by water erosion and rupturing, extending the life of pipes made of a nonmetal material selected from at least one of plastics, PVC (polyvinyl chloride), composite materials, or polybutylene. Coatings can be applied to nonmetal pipes having diameters up to approximately 6?. Leak sealants of at least approximately 4 mils thick can cover insides of nonmetal pipes, and can include novel mixtures of fillers and epoxy materials, and viscosity levels. A positive pressure can be maintained within the nonmetal pipes during applications.