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Automatic Control Valves

Automatic Control Valves
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CONTROL VALVES

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Quality, Service and Innovation Now in its ninth decade, Conbraco Industries, Inc. is a leading manufacturer of flow control products for U.S. and international markets. The company’s headquarters is based in Matthews, North Carolina with manufacturing plants and foundries located in Pageland and Conway, South Carolina. Conbraco has a history of new product development and innovation that dates back to the company’s inception in 1928. Today, the Conbraco line of products is marketed under the “Apollo Valves” brand and includes: ball valves, butterfly valves, backflow prevention devices,...

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CONTROL VALVES Basic Control Valve The Apollo Basic Control Valve is a diaphragm actuated, engineered valve. When equipped with a variety of pilots and accessories the valve performs a wide range of automatic fluid control, making it a specified valve in municipal water, fire protection, irrigation, industrial, petroleum and aviation fueling systems. The Apollo Control Valve is dependable and hard working; with a simplicity of design that ensures minimal part wear with exceptional performance and longevity. Self-contained, the valve operates automatically utilizing line pressure. The Apollo...

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CONTROL VALVES Pressure Reducing Valves The APOLLO Basic Valve Model A65/A765 when fitted with an external control pilot circuit becomes a very effective pilot operated pressure reducing valve. These “pilot operated regulators” reduce a higher inlet pressure to a constant outlet pressure over a wide range of demand without the pressure “fall-off” characteristic of direct acting regulators. They offer a much higher flow capacity than “direct acting” types and are therefore sized differently; refer to sizing guidelines. (Pages 6 and 7) They can provide additional hydraulic control functions,...

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CONTROL VALVES Pressure Reducing Valves DISTRIBUTION SYSTEMS Valves are located in municipal supply lines Demand may range from low to high High demand may be for fire flow Water usage varies relatively slowly over time SIZING GUIDELINES • Line sized valves are rarely necessary but are commonly specified • When sizing valves for anticipated future demand, consider parallel PRV’s • Refer to the Sizing Charts and contact your Apollo Representative for assistance. RECOMMENDED APOLLO MODELS A127 / A727 • 2-way pilot controls valve in response to changes in demand • Simple adjustment of outlet...

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CONTROL VALVES Pressure Reducing Valve Sizing Guide LOW FLOW BYPASS Sizing pilot operated reducing valves is not a complicated process. It starts with determining requirements and following these guidelines in valve size selection. Sizing the PRV involves two factors; Pressure Drop or Differential and Flow Rate. STEP 1 – Determine the application type where the valve is being used. Refer to the comments “Sizing Guidelines” under the category selected on page 5 and 6. • • • • Commercial / Residential Buildings – Refer to the fixture usage table for examples of usage in these types of...

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CONTROL VALVES Pressure Reducing Valve Sizing Guide MINIMUM AND MAXIMUM FLOW RATES, GPM, VS. VALVE SIZE AND PRESSURE DIFFERENTIAL How to use: 1.) Determine differential pressure: Inlet pressure minus outlet = differential 2.) Find the valve minimum and maximum flow rates per each size valve under the differential column. Note: 3% OPEN MIN. FLOW / MAXIMUM FLOW BASED ON 90% OPEN OR 25 FT/SEC (which ever is lowest) for additional information, submittal sheets an

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FIRE PROTECTION CONTROL VALVES Pressure Reducing Valve 129FC SERIES The Model 129FC automatically reduces high pressure in building riser pipe to a pressure that can be easily handled by the fire protections components it supplies. FEATURES: • Maintains constant discharge pressure despite variations in demand or inlet pressure. • Eliminates pressure fall off. • Easily adjusted for discharge pressure ranging from 50-165 psi. • Easily cleaned, repaired and adjusted without removal from the line. • Underwriters Laboratories listed, Control Number 18S5. (manufactured by OCV Control Valves) •...

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ADDITIONAL WATER APPLICATION SOLUTIONS Pressure Relief/Back Pressure A108 SERIES In many liquid piping systems, it is vital that line pressure is maintained within relatively narrow limits. This is the function of the A108 Pressure Relief/Back Pressure Series of the Apollo control valves. Installed in the main flow line, the standard Model A108 acts as a back pressure or pressure sustaining valve. In this configuration, the valve maintains a constant upstream pressure regardless of fluctuating downstream demand. When used in a bypass line, the same model will function as a relief valve,...

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ADDITIONAL WATER APPLICATION SOLUTIONS Rate of Flow A120 SERIES The Apollo Series A120 Rate of Flow control valve is designed to control or limit flow to a predetermined rate, regardless of fluctuations in downstream or upstream pressure. FEATURES: • Self contained, including the differential sensing orifice plate and pilot. • Flow rate is field adjustable (within orifice bore range). • Extra sensitive differential pilot specifically designed for rate of flow application. • Works equally well on all types of clean, nonabrasive liquids. • Isolation ball valves to facilitate maintenance and...

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ADDITIONAL WATER APPLICATION SOLUTIONS Digital Electronic Valve A22 SERIES With the development and proliferation of high level SCADA systems comes the need for automatic control valves to interface with such systems. The Apollo Series A22 Digital Electronic Control Valves were specifically designed for this task. While retaining the advantages of simplicity and operation from line pressure, these valves offer a level of ease of operation and degree of control not previously achieved. FEATURES: • Can be used as part of a SCADA system, or as a “stand alone.” • Extreme stability over a wide...

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