Ready to select pumps as well as suction diffusers, triple duty valves, heat exchangers, airdirt separators, pic valves, and parts. This series of units adds ten feet and many times 15 feet or more to the pump head. System syzer xylem applied water systems united states. System syzer calculator displays reynolds numbers, flow rates, relative roughness and friction factors. Every other circuit setter in the branch is then reset to the same proportional flow rate. Autoflow circuit balancing valves product description flow design inc. Plus rf calibrated balance valve is a precision machined ball type triple purpose balancing. The balance section is preset with gauge data for circuit setters and triple duty valves. This method is preferred by most designers for constant speed systems. Austin avenue, morton grove, il 60053 phone 8479663700 facsimile 8479669052.
Circuit balancing valves 2inch to 12inch armstrong fluid technology. Bell and gossett 117415 34 circuit setter npt sump pump. Accusetter manual balancing hydronic system balancing with calibrated venturis ashrae recommends that manual balancing valves be placed on the coils, risers, branches, and pump discharge so that the system can be proportionally balanced. We serve the hvac industry with worldclass fluid handling products. This product does not comply with the safe drinking water act, which requires that products meet lowlead standards in order to be used in systems providing water for human consumption drinking or cooking. This technical manual covers application of the system syzer software in the design. Specializing in automatic balancing products, fdi also offers a complete line of manual valves, hose accessories and components to be able to quickly and easily assemble terminal. Circuit setter cb provides cost savings advantages of preset proportional balance and assures optimum system flow balance at minimum operating horsepower. Adjust pump flow so that circuits are receiving their design flow. Do not use this item for any installation or repair of potable water applications. Designed, manufactured and tested to provide cost savings advantages of preset proportional balance.
Ta series 786787h788789 and series 78kh balancing valves. Geothermal and fire protection products balancing valves. It is well known, however, that each time any one circuit balance valve is adjusted, flow. Circuit setter plus calibrated balance valves xylem.
Instruction sheet 12 4 accuflo circuit setter flow balancing valve 402051 supersedes. Use it during design to help predetermine valve settings and out in the field to determine flow through the valves based on pressure drop readings. Circuit setter balance valve calculator the circuit setter calculator is the result of rigorous laboratory tests. This scale is used for preset balance determination.
Bell gossett system syzer software,hvac, plumbing, and. Proportional balancing strives to have all circuits with pressure drop equal to the. We discussed how to use the system syzer in part 3 of this hydronic balancing series. We have also bundled the circuit setter triple duty valve calculator that is very handy for balance. Installation recommendations install the valve in the correct flow direction according to the arrow on the valve body and the distance parameters detailed in figure 1 note. After all, its easy enough for the engineer to determine the pressure drop through each circuit by using the system syzer and come up with the correct setting for the circuit setter so the flow is automatically balanced and the last circuit setter is wide open. Download online calculators for the plumbing and hvac industry. Circuit setter plus calibrated balance valves xylem applied. Download system syzer calculator instruction manual teh175a. They are also equipped with an easy to operate memory stop feature. Using the mechanical engineers design drawings, the balancing contractor carefully adjusts each balancing valve throughout the hvac system to ensure the. Why choose a manual balancing valve over a circuit setter.
Circuit setter plus calibrated balance valve\r performance characteristics. State supply is known by building maintenance professionals accross the nation as the premier boiler room supply superstore. The armstrong circuit balancing valves cbv provide precise flow control through multiturn range adjustment and globe valve design. Circuit setter balance valves 4 thru 12 sizes g10047e pdf. A balance section with preset and gauge data for circuit setter, large circuit setter and. It is precisely calibrated for use as a presettable balance valve, variable. If there are additional branches, repeat the steps in 3, 4 and 5 for each branch. We have been in the business of making sure that you get the job done right since 1933. Online purchasing of hydronic and radiant heating systems and supplies w huge trade discounts. Venturi valves provide balance, ease of commissioning, and shutoff in a wide range of hvac systems. They are precisely calibrated for use as a presettable balance valve.
It is precisely calibrated for use as a presettable balance valve, variable orifice flow meter and positive shutoff service valve. Designed to be attached to circuit setter balancing valves to read feet of head to set the valve to a precise flow. Circuit setter plus calibrated balance valves xylem applied water. This circuit setter is left in the full open position. Circuit balancing valves half inch to 2 inch armstrong.
Are you looking for radiant floor heating, pex piping and infloor heat and more. To see pricing and availability for this product, create an account. System syzer is an hvac tool that helps with piping system design. The circuit setter requires manual devices on the coil, branch, riser and main. Designed specifically for preset or proportional system balance for use with terminal or fancoil units. Circuit setter rf for low flow applications provides cost savings advantages of preset proportional balance and assures optimumread more. Adjust the circuit setter by turning the red knob by hand on sizes 12 thru 1, or by placing a wrench on the wrench flats provided on. Circuit setters are used to balance hydronic systems, and they are required at every terminal in the system, even when there is a control valve present. Ncpe, you couldnt be any more incorrect in your statement. Npt and sweat style circuit setter balance valves are equipped with 14 npt plugged drain port. Npt and sweat models are also equipped with a drain port feature. Side 1 plots actual system imposed head loss versus flow for various valve settings. It is precisely calibrated for use as a presettable balance valve, variable orifice flow meter and positive shutoff service valve for low flow applications. The armstrong circuit balancing valves cbv provide precision flow measurement, pump throttling and temperature measurement capabilities.
Our mission is to be the highest quality, most responsive tab firm in the industry. Order system syzer calculator wheel from local representative. P across the valve falls within the allowable range external, lockable, handle allows for easy adjustment of flow should design specifications change integrated pressure temperature ports. After all branches have been proportionately balanced, measure the full open flows on the circuit setters. Circuit setter balance valves are bidirectional valves and can be installed in most attitudes. Fdi provides a full line of products for hydronically balancing your comfort piping systems. Model cb, cbs, cbf, cb g flow charts for hydronic balancing tags. This safety alert symbol will be used in this manual to draw attention. Circuit setter and select the one with the lowest proportional ratio. Circuit setter type devices typically add ten feet or more. Side 2 is used when taking gauge readings across the circuit setter. Circuit setter valve packages available lead free available.
We stock over 29,000 products for steam and hydronic heating systems. Circuit balancing valves 2inch to 12inch armstrong fluid. Circuit setter balance valve is shown under the degree of closure hairline in the red section of the calculator for the appropriate size circuit setter. Model cb, cbs, cbf, cb g flow charts for hydronic balancing. Circuit setters heating specialties heating supplies. It was first introduced in 1963 and has since been distributed to well over. Valves are furnished with a calibrated nameplate and memory. It is also available with manual or bms controlled high temperature bypass for sterilization per ashrae standard 1882018. This can be accomplished by adjusting a circuit setter. Circuit balancing valves 2inch to 12inch armstrong. The new circuit setter plus calibrated balance valve is specifically for preset proportional system flow balance at minimum pump operating horsepower.
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