Singer Single Point Insertion Flow Metering Valve SPI-MV

Cost Effective flow metering combined with control valve

There are many different variations available to fit your specific needs. Please Contact Us for a free quote or consultation.

SPI-MV Single Point Insertion
Flow Metering Valve


  • Accurate flow metering, combined with control valve to save space/cost
  • Supplied with Flow Converter for local display with 4-20mA output measurement or can be combined with PLC-based control panel for flow control applications
  • +/- 2% of rate accuracy, NIST traceable
  • Pre-calibrated from McCrometer's NIST traceable Calibration Lab
  • Available for vale sizes 4" (100mm) to 36" (900mm)
  • No Moving Parts - Single Piece Design
  • No wear or breakage and virtually immune to clogging
  • Removable for easy inspection, cleaning, calibration or verification
  • Combine with 106-2SC-PCO for complete flow-based valve control
  • Based on 106-PG and 206-PG main valves


  • The valve shall be installed with a 1” (25mm) Single Point Insertion Magnetic Flow Meter in one of the inlet body tappings.
  • Unit will be factory installed and programmed with correlative factors for Main Valve body flow profile.
  • The flow meter shall consist of two components: an electromagnetic sensor and a converter.
  • The 1” (25mm) electromagnetic sensor shall be capable of operating in valves from 4” (100mm) to 36” (900mm).
  • The flow meter shall determine the volumetric flow rate by means of the Continuity Equation where flow rate “Q” equals mean velocity “V” times cross sectional area “A” (Q = V x A). The velocity measurement must be taken at a known location, then, through empirically established equations, the sensed velocity will be converted to a mean velocity.
  • The flow meter converter shall be microprocessor based with a keypad for instrument set up and LCD displays for totalized flow, flow rate engineering units and velocity. The converter shall power the flowsensing element and provide a galvanically isolated Dual 4-20mA output.
  • It shall be possible, in the test mode; to easily set the converter outputs to any desired value within the range. The 4-20mA scaling, time constants, pipe size, flow proportional output, engineering units and test mode values shall be easily set via the keypad and display.
  • Four separate fully programmable alarm outputs shall be provided to indicate empty pipe, forward/reverse, polarity (normally open/close), analog over-range, fault conditions, high/low flow rates, percentage of range, and pulse cutoff. The converter shall periodically perform self-diagnostics and display any resulting error messages. All set up data and totalizer values may be protected by a password.
  • The flow-sensing element shall be of an electromagnetic single point type design and factory calibrated to traceable standards, such as NIST. The sensor shall be made of a polyurethane with pure carbon electrodes exposed to flow.
  • To eliminate erroneous readings due to pipe wall effects, the sensor must have its electrodes located at least 3/16” from pipe wall and be designed with a curved tip shape, so as not to collect debris while in the operating position. Flat tipped or Doppler sensors shall not be acceptable.
  • The sensor cable is 20 feet (6m) of multi-conductor, abrasive resistant, PVC jacketed submersible cable flexible to -400F/C. The sensor cable shall be permanently bonded to the sensor. Additional sensor cable, up to 200 feet (61m), shall be available as an option.
  • The insertion tube and restraining rods assembly shall be provided for the smooth installation and operation of the velocity sensor and shall be of sufficient length to allow a full profile of the flow conduit. The stainless steel insertion tube shall be rated for 250 PSI (1,724 Kpa) @ 1600F (710C).
  • Hardware must allow sensor to be secured by bolts when sensor is being inserted and retracted. A stainless steel compression seal assembly shall also be supplied.
  • No flow meters with accuracies expressed as a percentage of full scale will be accepted and flow meter must be NIST Traceable.


Download the SPI-MV Single Point Insertion Flow Metering Valve Product Guide.

Download the SPI-MV Single Point Insertion Flow Metering Valve Operations Guide.

Download the SPI-MV Submittal Form.

Singer FAQ and Troubleshooting Singer White Papers
Singer Projects and Solutions Singer Technical Sizing Info
Singer Full Product Catalogue Singer Training Videos

Singer Operation, Troubleshooting Charts, Lifting Instructions
Singer Interactive Valves in Action Learning App