The operation of the Universal vortex flow meter is based on the vortex shedding principle. As fluid moves around a body, vortices (eddies) are formed and move downstream. They form alternately, from one side to the other, causing pressure fluctuations.  These are sensed by a piezoelectric crystal in the sensor tube, and are converted to a 4-20 mA or pulse signal.

All Series 23 Multiport ball valves are of molded thermoplastic construction with union end on all three ports. Carriers thread into the body in order to provide blocking capabilities in the OFF position. Stems have double O-Rings and are of blow out proof design. The valve handle doubles as carrier removal and/or tightening tool. An ISO mounting pad is integrally molded into valve body.

All model 83 open/close electrically actuated ball valves sizes 3/8" thru 2" have direct mounted unidirectional 90º turn actuators (115 Vac & 220 Vac, 12/24 AC & DC are reversing). The actuators are weatherproof (NEMA 4X), have a green lead for grounding, and all wire leads protrude from a 1/2" NPT conduit port.

Model 7008 liquid diaphragm pump is an excellent choice where chemical resistance, plastic wetted components, DC power operation and quiet, reliable performance are required. It is typically used on medical equipment, laboratory automated chemistry applications, environmental sampling equipment and a range of industrial applications such as pick-and-place operations, ink jet printer systems and food packaging equipment.

Model 8018GT air diaphragm pump is an excellent choice where chemical resistance, plastic wetted components, DC power operation and quiet, reliable performance are required. It is typically used on medical equipment, laboratory automated chemistry applications, environmental sampling equipment and a range of industrial applications such as pick-and-place operations, ink jet printer systems and food packaging equipment.

Connected to a basic counter, the DFS flow meter can monitor flow rates and/or total quantities. In conjunction with a stand-alone controller or interfaced with process control or general purpose computers, the DFS is an integral part of flow controlled processes. In end-use, or in OEM applications, including those requiring disposable components, the DFS is a key part in a systems approach to a wide range of monitoring and controlling applications.

The DFS-20 Series Teflon® flow meters provide flow sensing capabilities in a wide variety of OEM and end-use applications including corrosive aqueous liquids. The fluid flows though the meter, passing a fixed worm that imparts a spiral flow that, in turn, spins the rotor on a virtually friction free bearing. The rotor blades reflect an infrared beam that generates a high resolution digital output signal.

Hudson, MA—Clark is pleased to introduce the Series L312 & L500 Custom Level Switches. Individually designed from over 360 available components, Series 312 Level Switches can be constructed in lengths from one foot to four feet and have a switch point tolerance of +/- 1/8.” L500 Level Switches are constructed from a selection of over 1,400 component parts and are available in lengths of up to 11 feet.

Hudson, MA—Clark announces the introduction of its FS00 Float Switch. The FS00 level switch consists of a polypropylene housing with an integrated watertight and position dependent electromechanical microswitch. The unit works according to the lift principle. The hollow float is raised (lowered) by the rising (falling) liquid until it reaches an angle of 45° from horizontal when switching takes place.

Hudson, MA—Clark is pleased to introduce the 8000 Series Calibration Pumps. These hand calibration pumps are ideal for generating and doing fine adjustments of vacuum and pneumatic pressures for calibration of low pressure switches, transmitters, and alarms.

Hudson, MA—Clark is pleased to introduce their new 511 Series OEM Pressure Transmitters. Designed to meet the highest specifications for mechanical stress, EMC compatibility, and operational reliability, 511 Series transmitters are rated for F.S. Pressure Ranges of –1 to 600 bar (-14.5 to 8700 PSI).

Hudson, MA—Clark's new Boxer Series 3000 Diaphragm Pumps for liquids or gases are ideal for low current/high reliability pressure or vacuum applications. DC powered and flow rated for liquids to 5.0 LPM (gases to 30 LPM), Boxer Series 3000 pumps are constructed of non-corrosive materials and feature a metal free wetted path.

Hudson, MA—Clark is pleased to introduce their new TMFR Series Magnetic Drive Rotary Vane Pumps. TMFR Series pumps provide flow rates up to 150 gph at pressures up to 230 psi and feature a combination of compact size, superior performance, and low energy consumption

Hudson, MA—Clark is pleased to introduce their new KPV Series Miniature Gas Vacuum Pumps. Available for less than $20.00 in OEM quantities, these pumps feature a simple and reliable design incorporating two mini-bellows operated by a rocker arm attached to an eccentric on a motor shaft.

Hudson, MA—Clark is pleased to introduce their new WTA-2 2-Way Normally Closed Inert Isolation Valves. WTA-2 valves feature a unique soft elastomeric seal material that tolerates particulate laden media that would typically destroy a conventional inert valve.

Hudson, MA—Clark is pleased to introduce their new DS25 Flowmeter. These variable area flowmeters are designed for flow ranges of 0.01 – 570 GPM for liquids (0.44 – 1100 scfm for gases) and feature stainless steel AISI 316 Ti wetted parts. DS25 Flowmeters are especially suited for aggressive media or for use in food and drink handling applications.

Hudson, MA—Clark is pleased to introduce Huba Controls line of low differential pressure transmitters to the US market, including the 694 Series Differential Pressure Transmitter. Based in Switzerland, Huba Controls is the European market’s leading supplier of low-pressure measurement devices for industrial and commercial HVAC applications.

Hudson, MA—Clark is pleased to introduce its 692 Series Differential Pressure Transmitters featuring a proven ceramic sensor technology that provides resistance to high temperatures and offers long term reliability. Clark’s 692 transmitters also feature calibrated and amplified sensor signals that are available as standard voltage or current outputs.

Hudson, MA—Clark is pleased to introduce the 604 Series Differential Pressure Switch featuring automated calibration, trapezoidal bead diaphragm design, multi-plated contacts, and compact packaging. 604 Series Differential Pressure Switches are ideal for ventilation, process oven, laboratory, and clean room applications.

Hudson, MA—Clark is pleased to introduce its 652 Series Differential Pressure Transmitters featuring high overpressure safety protection, rugged mechanics, and compatibility with slightly aggressive media. Ideally suited for level or flow monitoring in heating, ventilating, and process applications, 652 Transmitters are available for ranges of 0-20” w.c., 0-7.0 PSID, and 0-15 PSID with 0-10 volt or 4-20mA outputs. All 652 Transmitters have integral stain relief connections and 1/8” NPT pressure connections.

Hudson, MA—Clark is pleased to introduce its Model PKV-2R Molded Inert Isolation Valves. These two-way, solenoid operated valves are molded of PPS and feature a PTFE isolation diaphragm and FPM valve seat seal. FPM valve seat seals are extremely tolerant of particulates in media, which enhances valve performance and service life. PKV-2R Valves have a 6 mm orifice size and are excellent for controlling waste fluid lines on automated chemistry systems such as analytical, clinical, and biotechnology analyzers. They are also well suited to other high purity applications in semiconductor, pharmaceutical, and medical device manufacturing.