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12" FM Approved Fire Pump Dual Scale Flow Meter (2500, 3000, 3500, 4000, 4500 5000 GPM) (Dual Scale GPM and LPM equivalent is standard
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12" FM Approved Fire Pump Dual Scale Flow Meter (2500, 3000, 3500, 4000, 4500 5000 GPM) (Dual Scale GPM and LPM equivalent is standard

12" FM Approved Grooved, Flanged or Buttweld Connection Fire Pump Flow Meter
FM Approved by GVI 

Available GPM's

  • 2500 GPM
  • 3000 GPM
  • 3500 GPM
  • 4000 GPM
  • 4500 GPM
  • 5000 GPM 

Minimum dial / meter GPM range 50% of rated GPM.  Maximum dial / meter GPM Range 200% of rated GPM

NOTE:  Optional scales such as LPM are available.  Please contact us with your special requirements.

  • $1782.00

12" Grooved Fire Pump Flow Meter
by GVI 

GVI venturi style fire pump flow / test meters are FM Approved for use in measuring the amount of water being discharged during a fire pump test. Standard construction is carbon steel, red powder coat finish and furnished with a 4" meter dial.

Contact us for various options such as stainless steel construction or 6" meter dial.

Grooved and buttweld end connections rated to 500 PSI working pressure.  Ansi 150# flanged rated to 275 PSI working pressure.

FM Approved

Refer to the Flow Test Connection Sizing Guide for more information on selecting a size.


Typical lead time is 1 week to ship.

Lead Times
97% of our orders ship within 1 business day. We stock most items in our warehouse and can ship most orders placed before 1pm CST on the same day. Priority is given to orders that select Next Day Air shipping. Items that are made to order will make note of their lead time in the item description.

Calibrated gauges may add 2 days to ship time, please contact us or select Next Day Air service if needed immediately.

Shipping Locations is located in the central United States, we can ship quickly to anywhere in North America. At this time, ships merchandise to locations within the United States and U.S. territories, including Alaska, Hawaii, Puerto Rico, Guam, and the US Virgin Islands. Additionally, ships merchandise to Canada and Mexico.Other international locations may not be able to purchase through this website and should contact us for purchasing inquiries.

Shipping & Delivery
The risk of loss and title for all merchandise ordered on this Web site pass to you when the merchandise is delivered to the shipping carrier.

Puerto Rico Customers
Puerto Rico orders must choose US Postal Service for shipping. Orders placed with UPS may be shipped via Postal Service at our discretion.

We accept American Express, MasterCard, Visa, and PayPal payments.

We will honor reasonable requests to return merchandise based on manufacturing defects only, upon which we will provide a refund or replacement per instance. is not responsible for the cost of shipping on returned merchandise. In some instances a restock fee may be charged. We will always do our best to reach an amicable resolution.

    • Weight
      85 lbs
    • SKU
  • Gauge Style
    Analog Gauge (Diaphragm Operation), Digital Gauge
  • Connection
    Grooved, Buttweld, Flanged 150#
  • Gauge Size
    4" Gauge, 6" Gauge
  • Manufacturer
  • Flow Meter GPM
    2500, 3000, 3500, 4000, 4500, 5000