Abstract: One or more techniques and/or systems are disclosed for a pumping system that includes a self-priming pump, a remotely coupled controller configured to operate the self-priming pump and other portions of the system, a discharge flow meter, and a bleed valve coupled to the self-priming pump. The system can be remotely accessed, programmed, and transmit data to a remote device. The bleed valve can comprise a loss of prime sensor in the body, and when the loss of prime is detected in the pump and/or the discharge flow meter detects a loss of flow, the pump and/or controller may be used to help re-establish prime in the pump by opening the relief outlet and operating the pump at an increased rate.

Abstract: A static mixing apparatus may include a first portion having a height; a plurality of projections extending from proximate an outside edge of the first portion towards the centerline of the first portion at about a right angle, each projection having a first side at about a right angle to a second side, the first and second sides converging at an apex, the plurality of projections arranged to form an opening between the sides of the projections, and the opening having an inlet side and an outlet side. The static mixing apparatus may be substantially cylindrical.

Abstract: A nonmetallic pump with a gear pump assembly having an adapter spool mounted to an electric motor. The pump assembly is designed to reduce manufacturing costs and to provide access for many service and maintenance tasks to be performed without breaking any of the pipe connections. The pump assembly also includes a splined shaft system and a lubricating fluid circulation system with spiral grooves located inside a pair of bearings disposed on opposite sides of the gear flights. The assembly also includes a replaceable precision liner that surrounds the gear flights to maintain a tight tolerance for optimal performance of the pump. Also, an O-ring disposed inside the front cover of the assembly provides for operation of the pump over a wide temperature variation with relatively loose manufacturing tolerances.

Abstract: A diaphragm metering pump suitable for metering an effervescent gas. The pump has a pump head with a product chamber having an inlet end with a one-way inlet valve and an outlet end with a one-way outlet valve. A displaceable diaphragm member defines a boundary of the product chamber. The diaphragm member is capable of being reciprocated to cause pumping displacements. A discharge side is disposed downstream from the outlet valve. A passageway is disposed in fluid communication between the discharge side and the product chamber. A valve is disposed in the passageway. The valve is opened intermittently to allow liquid to re-enter the product chamber in an amount effective to purge gas from the product chamber to prevent loss of prime.

Abstract: A system for quickly removing and installing check valve parts without disturbing system piping attached to a pump. The system includes a first adapter attached to the outlet of the pump head. The first adapter includes a valve seat and a housing with a side wall having external threads. A second adapter includes a hollow body with a space for a check valve. The body has an opening in the side wall for inserting the check valve. The second adapter fits over the first adapter and the adapters are attached by means of a collar. Tightening the collar onto the threads on the first adapter causes the check valve to be held firmly between the valve seat and the top wall of the second adapter.

Abstract: A nonmetallic pump with a gear pump assembly having an adapter spool mounted to an electric motor. The pump assembly is designed to reduce manufacturing costs and to provide access for many service and maintenance tasks to be performed without breaking any of the pipe connections. The pump assembly also includes a splined shaft system and a lubricating fluid circulation system with spiral grooves located inside a pair of bearings disposed on opposite sides of the gear flights. The assembly also includes a replaceable precision liner that surrounds the gear flights to maintain a tight tolerance for optimal performance of the pump. Also, an O-ring disposed inside the front cover of the assembly provides for operation of the pump over a wide temperature variation with relatively loose manufacturing tolerances.

Abstract: A feeder system comprising a hopper for holding dry chemical. A feed tube extends from the hopper and is for delivering dry chemical to a mixing tank. A first solenoid actuator is provided for controlling the opening and closing of a first solenoid actuated gate that is disposed in the feed tube. A second solenoid actuator is provided for controlling the opening and closing of a downstream second solenoid actuated gate disposed in the feed tube. A central controller is provided that is in communication with and controls the system components including the introduction of the dry chemical and process water into the mixing tank. The central controller controls a metering pump that pumps chemical mixed solution out of the mixing tank.

Abstract: A diaphragm metering pump suitable for metering an effervescent gas. The pump has a pump head with a product chamber having an inlet end with a one-way inlet valve and an outlet end with a one-way outlet valve. A displaceable diaphragm member defines a boundary of the product chamber. The diaphragm member is capable of being reciprocated to cause pumping displacements. A discharge side is disposed downstream from the outlet valve. A passageway is disposed in fluid communication between the discharge side and the product chamber. A valve is disposed in the passageway. The valve is opened intermittently to allow liquid to re-enter the product chamber in an amount effective to purge gas from the product chamber to prevent loss of prime.

Abstract: A conductivity probe having a modular design. A probe body has a distal end and a proximal end. The distal end includes a recessed portion for providing a seat for an O-ring that seals an electrode tip assembly. The probe body also includes a set of internal threads for engaging with cooperating threads disposed on the electrode tip assembly. The distal end of the body terminates in a bottom wall having an opening leading to a connection pipe attached to a junction box. The exterior of the probe body includes a stepped down profile of varying constant diameters with a side port formed in the probe body for receiving a temperature compensation probe. The probe body includes a set of external threads and wrench flats for installing the probe into a boiler conduit. The design is completely modular with minimal assembly required. The probe body is machined easily and features hard stops for trouble-free assembly. Also, there is no potting of the electrical components required.

Abstract: A portable, hand-held fluid tester for testing and analyzing process fluids is provided with a volume controlled fluid reservoir. The test fluid reservoir is connected by a spillway to an overflow reservoir to provide more consistent and accurate fluid volumes for measurement. Improved mounting of electrodes in the test reservoir and connection to a testing printed circuit substrate provides for ease of assembly. A special temperature probe arrangement is also provided in a preferred embodiment.

Abstract: A new and improved automatic venting back pressure valve is provided in a valve body including a back pressure chamber having a fluid inlet and a fluid outlet. A spring loaded back pressure member covers the fluid outlet which is movable between a normally closed position wherein the back pressure member seals off the fluid outlet and an open position wherein the back pressure member is displaced from the fluid outlet to permit fluid to flow through the back pressure chamber from fluid inlet to fluid outlet in response to increased fluid pressure in the back pressure chamber. A gas by-pass orifice is disposed in an upper portion of the back pressure chamber which connects the back pressure chamber to a downstream portion of the fluid outlet. The gas by-pass orifice has a diametrical dimension selected to permit flow of gases through the orifice but to substantially not permit flow of liquids through the orifice.

Abstract: A new and improved diaphragm metering pump is provided with a modular removable drive assembly. The removable drive assembly provides rotation to an eccentric shaft within the pump and is disposed outside rotary bearings for the eccentric shaft and outside sealing elements containing hydraulic fluid in the pump housing. In a preferred embodiment, a readily accessible mechanically activated hydraulic refill valve cartridge is provided to hydraulically balance the diaphragm. In a preferred embodiment, a push to prime air bleeder valve is provided permitting automatic priming of the hydraulic system without requiring disconnection of any valves. The pump is designed to interchangeably receive a number of diaphragm assemblies including an improved leak detection diaphragm and a double-sided leak detection diaphragm. In a preferred embodiment, a diagnostics window is provided permitting visual inspection of the operating condition of various valves connected to the hydraulic system.

Abstract: A new and improved liquid metering pump for use in pumping sterile fluids and foodstuffs includes a separable autoclavable pump head assembly. The diaphragm-containing pump head may be preassembled as a unit and sterilized to provide a pump head having sterile product contact surfaces. The pre-sterilized pump head may be mounted and connected to an electronic solenoid metering pump and used for delivering fluids in food preparation, medical and pharmaceutical applications.

Abstract: A new and improved diaphragm metering pump is provided with a modular removable drive assembly. The removable drive assembly provides rotation to an eccentric shaft within the pump and is disposed outside rotary bearings for the eccentric shaft and outside sealing elements containing hydraulic fluid in the pump housing. In a preferred embodiment, a readily accessible mechanically activated hydraulic refill valve cartridge is provided to hydraulically balance the diaphragm. In a preferred embodiment, a push to prime air bleeder valve is provided permitting automatic priming of the hydraulic system without requiring disconnection of any valves. The pump is designed to interchangeably receive a number of diaphragm assemblies including an improved leak detection diaphragm and a double-sided leak detection diaphragm. In a preferred embodiment, a diagnostics window is provided permitting visual inspection of the operating condition of various valves connected to the hydraulic system.

Abstract: A new and improved diaphragm metering pump is provided with a modular removable drive assembly. The removable drive assembly provides rotation to an eccentric shaft within the pump and is disposed outside rotary bearings for the eccentric shaft and outside sealing elements containing hydraulic fluid in the pump housing. In a preferred embodiment, a readily accessible mechanically activated hydraulic refill valve cartridge is provided to hydraulically balance the diaphragm. In a preferred embodiment, a push to prime air bleeder valve is provided permitting automatic priming of the hydraulic system without requiring disconnection of any valves. The pump is designed to interchangeably receive a number of diaphragm assemblies including an improved leak detection diaphragm and a double-sided leak detection diaphragm. In a preferred embodiment, a diagnostics window is provided permitting visual inspection of the operating condition of various valves connected to the hydraulic system.

Abstract: A modular control is provided for sensing characteristics of a fluid and controlling the dispensing of additives into said fluid. The control is contained in a box-like housing having an openable wall which is sealable to a remainder of said housing in a water-tight manner. A plurality of printed circuit boards can be mounted in an interior of said housing. A control circuit is carried on at least one printed circuit board mounted in the housing including a microprocessor controller. At least one probe is provided for immersion in the fluid to detect a characteristic of the fluid. At least one output device is provided for dispensing an additive into the fluid. A signal processing circuit is carried on a printed circuit board mounted in the housing for processing a signal received from the probe. An output control circuit is carried on a printed circuit board mounted in the housing for controlling the output device. A display is mounted on one of the housing walls.

Abstract: A computer controlled metering pump. The displacement of a metering pump is accurately monitored using a position sensor connected to a piston. A control computer receives the sensor signal as well as a desired pumping volume rate. The pumped volume is continuously monitored by the computer as a function of the piston displacement, and compared with the desired rate. The metering pump is controlled to bring the pumped volume rate into agreement with the desired volumetric pumping rate.

Abstract: Apparatus for monitoring the diaphragm integrity in a diaphragm pump. A single continuous circuit trace is supported on a pump diaphragm. An electrical circuit is connected to the continuous circuit trace for measuring both the continuity and a potential ground fault condition between the circuit trace and pumping liquid. The circuit trace is formed in a configuration which resists the effects of strain induced by continuous flexing of the diaphragm.