『Hose Monster Flow Meter Systems: Hydrant Flow Test Equipment for Certified Fire Hydrant GPM Proving』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)

Hose Monster Flow Meter Systems: Hydrant Flow Test Equipment for Certified Fire Hydrant GPM Proving
Quick Answer: Silver Instruments supplies electromagnetic and ultrasonic flow meters for fire hydrant flow tests. These meters give you certified GPM readings for hydrant proving. Send us your pipe size, pressure, and flow range for a quote today.
Hose Monster flow meter systems are common in fire protection testing. They use a pitot tube or a flow sensor to measure water flow from a hydrant. Silver Instruments does not make the Hose Monster brand. We supply industrial flow meters that can do the same job. In many cases our ultrasonic clamp on meter is faster because you do not need to cut pipe.
Why Certified Fire Hydrant GPM Proving Matters
Fire pump systems must pass regular flow tests. The flow in GPM proves that the pump delivers enough water. Insurance inspectors and local fire authorities ask for these records. If your measurements are not accurate, you can fail the test. A flow meter with a calibration certificate gives you valid proof of flow.
In practice, most engineers skip the cheap insertion meters. They drift after a few months and give you false GPM numbers. We have seen this on customer sites many times. A paint manufacturer in Vietnam asked us to replace an old paddle wheel meter on a test pump. The old meter read 15 percent low at 800 GPM. Our electromagnetic meter fixed it.
Silver Instruments Flow Meters for Hydrant Testing
We recommend the Silver Instruments SUP-1158 ultrasonic flow meter for hydrant tests from DN40 to DN600. This meter clamps on the outside of the pipe. No shutdown is needed. It handles water temperature from 0 to 60 degrees Celsius and pressure up to 16 bar. Accuracy is plus or minus 0.5 percent of reading. The meter outputs 4-20 mA HART and can connect to a paperless recorder.
For permanent test headers, use our electromagnetic flow meter. It works on DN15 to DN500. The liner is PTFE and the electrodes are 316L. You can order it with a local display and RS485 Modbus. We calibrate every meter on a certified rig before shipment.
Here is the thing. A fire protection contractor i

How to Order the Right Meter
You need to give us four details. Pipe outside diameter, wall thickness, flow range, and working pressure. If you have a hydrant test with a pitot port, tell us the port size. We will select the right flow sensor. Do not guess the pipe schedule. A wrong wall thickness gives you a bad flow reading.
Send your details by email or WhatsApp. Tel: +86-25-68650347, WhatsApp: +86-25-52155837, WeChat: +86 15365082610. We reply within one business day.
FAQ on Hydrant Flow Test Equipment
What flow range do I need for fire hydrant testing?
Most hydrant tests run from 200 to 2500 GPM. For small hydrants, 100 GPM to 500 GPM is common. For industrial fire pumps, you may need 5000 GPM. We size the meter for your full range.
Can I use a clamp on ultrasonic meter for hydrant flow testing?
Yes. A clamp on meter works well on steel or ductile iron pipe. You need a straight run of at least 10 pipe diameters upstream. The pipe must be full of water. No air bubbles.
Do you supply the Hose Monster brand?
No, we do not sell the Hose Monster brand. We supply our own flow meters that replace or work alongside those systems. Many customers use our ultrasonic meter as a second check.
What accuracy do fire pump tests require?
NFPA 20 suggests flow measuring devices with an accuracy of plus or minus 3 percent. Our meters are much better at plus or minus 0.5 percent. This gives you plenty of margin for certification.
Can I record the flow data during a test?
Yes. Our meters output 4-20 mA HART or RS485 Modbus. You can connect them to a Silver Instruments paperless recorder. The recorder stores the data on a USB drive. It gives you a permanent test record.
Contact Silver Instruments today. Tell us your pipe size, flow range, and pressure. We will send you the right flow meter for certified fire hydrant GPM proving.

Current position > Product detail