KOBOLD Instruments Inc.Pittsburgh, PA
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 KSR/SVN - Low Volume Flow Switch for Liquids or Gases

Flow switch types KSR and SVN operate on the same principle as a float-type flow indicator. Type SVN utilizes a proximity switch which transmits a signal to an amplifying relay as the switch passes by the float. This causes a signaling, or switching, sequence to be triggered as chosen by the user. Type KSR contains a magnet in its float.

For more information on Flow Type Switches please: click here.
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 S - Float Type Flow Switch

KOBOLD S- flow switches work on the well known variable area principle but without the use of the open conical measuring tube. Instead, the instruments use a cylindrical control tube with a conical groove along its axis. This makes for a very compact design. The flow switch can be used for continuous control of fluids and gases to insure that excess or low flow cannot result in damage to equipment.

For more information on Float Type Switches please: click here.
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 KSM - All Plastic Flowmeter & Switch for Liquids or Gases

The KSM series plastic flowmeter with switch is an excellent choice for applications with aggressive media. There are no metal parts contacting the fluid. Measuring tubes are Nylon or Polysulfone with other wetted parts made of PVDF, PVC and EPDM.

For more information on Liquid Level Type Switches please: click here.
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 SM - High Pressure All-Metal Flowmeter & Switch

The SM series devices can be fitted with set point switches triggering on flow rate. These are mounted externally in a protective housing, and are actuated by a magnet in the float.

For more information on Pressure Type Switches please: click here.
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 KDG/KDF - Low Volume Glass Tube Flowmeter

The KDG/KDF micro flowmeters operate on the float principle and are designed to measure low gas and liquid flows. Flow can be set exactly within the measuring range using the integral precision metering valve.
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 BVO - OEM Flowmeter w/Switch

Cost conscious, large volume applications require special products. The KOBOLD BVO line of flowmeters is aimed at customers demanding low cost without sacrificing the robustness and reliability associated with a top-tier flowmeter. The BVO offers all the design ruggedness and quality of the KOBOLD SV line of meters, only at a lower price.
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 KDP - Miniature Armored Flowmeter & Switch

The KDP series armored flowmeter is an ideal choice for measuring and controlling low flows of liquids or gases in industrial applications where a rugged reliable design is required. The standard design has an all stainless steel body rated to 1885 PSIG and 300°F.
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 DF - Paddle Wheeel Flow Sensor

The main feature of the KOBOLD DF flow sensor is the incorporation of a multipole magnet ring into the paddlewheel. As the paddlewheel rotates, these magnets, hermetically separated from the fluid medium, induce an DC signal in a Hall sensor mounted on the device housing. Since the DC signal frequency is proportional to paddlewheel rotation, an accurate flowrate reading is possible.
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 PME - Magnetic Inductive Flowmeter/Switch

The KOBOLD PME series insertion magnetic inductive flowmeter is the perfect solution for accurately measuring the flow of conductive liquids in pipes. The insertion design allows installation into large pipes much more economically than installation of an in-line magmeter. The PME can be provided with weld sleeves for carbon steel, stainless steel or PVC pipes from 1 to 12 inch diameters.
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 VKP - Plastic Flowmeter & Switch

KOBOLD’s plastic VKP flowmeters and switches are used wherever inexpensive flow measurement of liquids (eg. domestic services, cooling water, lubrication systems, solar heating, etc.) is to be performed. The VKP series offers a compact design with wetted parts of Polysulfone, PVDF and Stainless Steel. Its low cost and features make the VKP series an ideal choice for OEM applications.
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 PSR/PS Paddle Type Flow Switch

KOBOLD series PSR/PS paddle type flow switches can be used wherever a simple economic yet reliable monitoring instrument is required for flow switching applications. The device operates as follows: The flowing medium presses against the paddle. The paddle is fitted to one end of a balance arm which is in direct contact with a pre-stressed leaf spring. At the other end of the balance arm is a permanent magnet. This magnet actuates a reed contact located within a moveable housing outside the media. The reed contact switches on or off depending on the flow rate. The switch output can then be used for system protection control. The movable reed switch on the KOBOLD PSR/PS allows the contact to be set either normally open (N/O) or normally closed (N/C) in the field.
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 DW - Paddle-Bellows Flowmeter & Switch


KOBOLD model DWU, DWS and DWP flow meters and switches are based on the paddle, or static plate, principle. This type of arrangement is ideal for use in applications where dirt and solid grain contaminant are of concern. The paddle-bellows arrangement offers large internal clearances and mechanical insensitivity to a wide range of particulate matter.
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 KSK - PLastic Flowmeter and Switch

The KOBOLD KSK plastic flowmeters/ flow switches operate on the basis of the well known variable area principle. The medium flows upward through a conically widening plastic measuring tube. The float is lifted by the flowing medium and indicates the instantaneous flow rate on the scale attached to the flowmeter. The KSK series is all plastic with bodies made of nylon Polysulfone or PVDF to handle aggressive media.
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 FPS - Flow Switch For Liquids

KOBOLD FPS flow switches are used wherever reliable control for min. or max. liquid flow is required. The flow switch operates on the paddle-bellows principle. The flowing medium exerts a force on the paddle and thereby actuates a micro switch. The interchangeable paddle, in conjunction with an adjustment screw, allows for a wide variety of switching points and adaptation of the instrument to different pipe sizes.
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 KAL - Thermal Flow Switch

The KAL electronic flow switch continuously monitors the flow of liquid media. It
can be used wherever flows must be monitored with a minimal loss of pressure.
The KAL’s one-piece, stainless steel sensor has no moving parts making the KAL very reliable. High strength is another advantage inherent in this design allowing use at high pressures, and virtually eliminating any chance of mechanical damage.
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 DVK - Calorimetric Flowmeter and Switch

The DVK series digital flow meter is ideal for measuring low and medium air flows where monitoring flow setpoints is required. The DVK operates on the calorimetric principle.
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 KDM - Armored Flow Meter & Switch

The KDM variable area flow meter is ideal for difficult applications requiring high pressure operation or low pressure loss. Its all metal, armored design is available in stainless steel, PTFE clad stainless steel, or Hastelloy C4. In standard configuration, the KDM is a purely mechanical meter. However, electronic limit switches or an analog flow transmitter may be added if so desired.
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 DVW - Vortex Flowmeter and Switch

The DVW series vortex flowmeter and switch is ideal for measuring low flows of
water and low viscosity liquids where monitoring flow switchpoints is required.
The DVW operates on the vortex shedding principle. This principle employs a bluff body in the flow stream. As the liquid flows past the bluff body, turbulence and a pressure oscillation is formed behind the body. The frequency of this pressure oscillation is proportional to liquid flowrate.
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