Category Archives: Pollard pitot

Pollard pitot

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Accept Decline. JavaScript seems to be disabled in your browser. You must have JavaScript enabled in your browser to utilize the functionality of this website. As a global manufacturer of fire fighting equipment and more, Akron Brass designs and manufactures products that meet the demands of the industry and help you perform your job safely and efficiently.

Whether you need fire nozzles, fire fighting valves, monitors or the latest technology in vehicle electronics, Akron Brass has a large selection to meet your unique application.

Our fire fighting equipment is safe and effective for your emergency situation. This achievement attests to our commitment of servicing our customers. Cookie Policy This site uses and sets "cookies" on your computer to help make this website better. My Quote 0. My Account Log In. Nozzles Selectable Gallonage. Vehicle Mounted Electric. High Power Scene Lighting. Interior Auxiliary Lighting.

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Hydrant Flow Test.

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Backflow Preventers. Fire Hose. Fire Hose Accessories. Fire Extinguishers. Fire Dept. Waterflow Sprinkler Products. Pipe Fittings. Sale and Specials. Contact Us. This Site The Web. All Major Credit Cards Accepted. Hydrant Pressure Data Loggers. Fire Hydrant Meters. Hydrant Flow Test Kits.

Fire Hydrant Parts and Accessories. It is recommended for all field-testing or water main flushing operations in which unsecured hoses are used to direct water flow. Please note that there will be some pressure loss due to backpressure at the T bend.

This 4" or 4. It can be connected with a Fire Hydrant with a 4" or 4.

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pollard pitot

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Fire hydrants are tested regularly to ensure that they are capable of providing water at an acceptable pressure and flow rate foe public health and firefighting operations. NFPA recommends that a residual pressure of 20 psi be maintained in fire hydrants for them to be effective for firefighting and preventing the contamination of public water supplies by backflow.

Performing a fire hydrant flow test provides the actual static pressure, residual pressure and the flow from the hydrant. In addition, it is also necessary to perform a flow test to properly design a fire sprinkler system for a commercial or residential structure. A flow test is required in most jurisdictions and is critical for proper fire sprinkler system design.

Incorrect readings can result in additional fire pumps for under-designed systems or costly overdesign in pipe sizing. It is important to notify the water company or water authority before conducting any water flow test, since opening the hydrant could disrupt normal operating conditions in the water distribution system in that area. You should have the proper equipment on hand, including a flow test kit with the correct nozzle size to attach to the hydrants.

A water diffuser and sock can prevent damage to landscaping and roadways as well as redirect water to prevent ice patches on surfaces in the winter.

pollard pitot

Also, ensure that drains are not blocked by leaves or other debris to prevent water backup. While some flow test can involve many hydrants flowing at the same time, the following example uses only one flowing hydrant. It is best to conduct a flow test during peak hours in the morning to reflect the worst case scenario. Street pressures can fluctuate s much as 10 psi in the morning compared to the afternoon or night when demand is low. Having a sketch of the site is also a good idea.

The same regulation also establishes that a Flow Test must be conducted every 5 years. Call us to schedule an appointment and obtain free no obligations estimate. Before the test It is important to notify the water company or water authority before conducting any water flow test, since opening the hydrant could disrupt normal operating conditions in the water distribution system in that area. Performing a Hydrant Flow Test While some flow test can involve many hydrants flowing at the same time, the following example uses only one flowing hydrant.

During the flow test, be sure to collect the following information: Date of hydrant test Hydrant location street name Time of day the hydrant was tested Static reading at pressure hydrant B pressure in the system with no flow Residual reading at pressure hydrant B pressure during flow Flow reading using pitot gauge at hydrant A Water main diameter in inches Hydrant outlet size and type coefficient of discharge Hydrant Elevation Follow the steps below to perform a single-hydrant flow test.

Locate the test area by choosing the closest hydrant downstream of the building supply line. This will be used to gather pressure readings. Next, select the subsequent downstream hydrant as the secondary flowing hydrant to obtain your pitot reading.

Remove the nozzle cap on the pressure hydrant and attach a pressure gauge to the outlet. Then completely open the valve and take the static pressure reading. No water should be flowing. Note any elevation changes from the pressure hydrant to the structure and the flowing hydrant. Completely open the valve on the flowing hydrant, making sure the path of flow to the drain or pathway is safe and clear of debris and obstacles.

Note that it may be necessary to use a diffuser. Record the residual pressure from the pressure hydrant gauge after the pressure needle stabilizes. This could take several seconds of! Record your pitot reading by inserting the orifice of the pitot tube into the center of the flow of water and away from the opening at half the diameter of the opening. Close the hydrant slowly to avoid undue surges and damage to the underground system and equipment.

Insert your hand into the back of the hydrant outlet to verify whether the outlet is smooth and rounded, square and sharp, or square and projecting into the barrel.

Bernoulli's principle 3d animation

Record the outlet size and type and include that information with the rest of the data from the flow test.The Hose Monster Company will remain operational in accordance with the shelter-in-place orders for the state of Illinois, continuing to take and process orders as well as answer any and all technical, product or customer service questions.

However, in an effort to do our part, most of our employees will be working remotely for the time being, which may cause slight delays in shipping.

Thank you for your patience during this uncertain time. Please stay safe. No conversion chart is necessary. A psi gauge is the most suitable range. The BigBoy Hose Monster is intended to be used with a hose and should not be attached directly to a hydrant. We offer several hose options. Your hose choice will depend on: 1 the diameter of the water source connection, 2 the thread or connection type, and 3 the hose length.

pollard pitot

Adapters or Hose of various lengths and sizes are available through us. Please contact us at Read your GPM flow-rate directly on the included gauge face while flowing. Weighs only 13 pounds yet handles high flow hydrants up to 2, GPM. Flow from 4. Please be advised that Gauge Calibrations require up to 48 hours.

Add to cart Please be advised that in order for a product to be shipped out same day, the order must be received by AM CST. Hose sold separately The BigBoy Hose Monster is intended to be used with a hose and should not be attached directly to a hydrant. Recommended Hose Options: 1. Visit our resource center for more information on each of our products and how they work.

Item : HSprinklerhead Accessories. Hydrant Flow Test. Backflow Preventers. Fire Hose Accessories. Fire Extinguishers. Waterflow Sprinkler Products. Pipe Fittings. Sale and Specials. Contact Us.

All Major Credit Cards Accepted. E-mail: sales nnifire. Hydrant Flow Test Diffusers. Hydrant Pressure Data Loggers. Fire Hydrant Meters. Venturi Flowmeter. Fire Hydrant Parts and Accessories.

Blade - Click to enlarge. Please specify if other range gauge or an extra gauge is required. It works with any thread pattern as it attaches to the hose nozzle via a thumb screw and clamp. Clean the thread, 0pen hydrant to flush any debris from the barrel.

Shut down the hydrant. Clamp the unit on the top of the nozzle thread with the blade parallel to flow direction. Select a thread, then tighten thumb screw to securely hold assembly on nozzle. Open hydrant fully. Purge the air from the bleeder by turning counterclockwise. After water flows from bleeder, retighten. Read pressure in pounds on inner ring, gallons per minute from outer ring. Data Sheet. It will provie the most accurate reading as the pitot will measure the Pressure and flow right at the center of he flow close to Hydrant.

No loss of Pressure due to Back pressure or Hose length.

pollard pitot

The diffuser also has a Pitot Tube Assembly that can be used to flow Test or just discharge of water on a street. Hydrant Wrench and Hose will be packed separately in a polyester fabric Bag. Hydrant Flow and Pressure Testing Kits. Note: Gauges supplied with our Test Kits are quality Liquid Filled Gauges but do not come from any manufacturer with individual certification.

Certification insures accuracy and is necessary for certain types of testing. Certification is normally done on an annual basis. Certified Pressure gauge calibration is a process of comparing a gauge in at least 5 test points over the span to a known certified and traceable pressure measuring device. We can test and certify gauges with a calibration sticker and a N.The Hose Monster Company will remain operational in accordance with the shelter-in-place orders for the state of Illinois, continuing to take and process orders as well as answer any and all technical, product or customer service questions.

However, in an effort to do our part, most of our employees will be working remotely for the time being, which may cause slight delays in shipping. Thank you for your patience during this uncertain time. Please stay safe. Protect your gauges in the field, in the truck and while not in use. The NEW G equipment case can safely store up to twelve gauges in a waterproof and airtight case.

The case is equiped with a custom closed-cell form insert for customization. The Hose Monster Company is dedicated to providing trustworthy products and software that make maintaining water distribution systems and pump testing jobs safe, accurate and simple.

The annual fire pump flow test can identify deterioration of the fire pump or impairments to the water supply. Hydrant flow tests are conducted on hydrants to determine water availability in planning for firefighting activities, fire sprinkler systems or domestic water demand. The tests are also useful in determining the general condition of the water distribution system by detecting closed valves or wall deposits.

A well-maintained water system enables firefighters to extinguish flames and prevent large- scale damage or loss of life. A standpipe is the vertical piping that connects fire sprinkler systems and hose stations between multiple floors.

It is common to see standpipes in stairwells of high-rise buildings.

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A rooftop standpipe test verifies the water supply, pump and piping at the topmost part of the system. The Hose Monster Company is dedicated to providing equipment, software and procedural solutions that make the jobs of maintaining water distribution systems and pump testing safe, accurate and simple.

All of our products are designed to give accurate information about the water supply that is available to fight a fire at any given moment. If you have any questions about our products or the corresponding testing applications, please call us at Small and lightweight — yet it neutralizes the tremendous force of discharge water.

The Little Hose Monster has no pitot so small rocks and debris pass right through the system without causing damage. The Little Hose Monster […]. Read your GPM flow-rate directly on the included gauge face while flowing. Weighs only 13 pounds yet handles high flow hydrants up to […]. It includes a built-in, reversible pitot and measures flows from to GPM. For lower flow-rates, a Nozzle Insert can be used.

Both units are constructed of steel and include a […]. Until the early s, fire pump testers relied on the playpipe and hand-held pitots. For hydrant testers, water was discharged across the street and flow-rate was measured through a bouncing gauge needle on a hand-held pitot through an inexact orifice with a guessed-at coefficient. Users can take remote flow readings away from the water discharge so you can stay dry and focused.


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