American Made Quality since 1928

Quality, Service 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, water pressure reducing...

AUTOMATIC PRESSURE REDUCTION Pressure reducing valves are designed to automatically reduce a high inlet supply pressure to a lower outlet pressure. In most plumbing code juris­ ictions, pressure reducing valves are mandated whenever the supply water pressure exceeds 80 PSI. d Excessive pressure can waste as much as 40,000 gallons of water in an average home every year. Ideally, water systems can meet required pressure and capacity needs with a water velocity of 10 feet per second or less. Cutting costs by specifying undersized piping often results in water hammer and other undesirable pipe noises....

WATER PRESSURE REDUCING VALVES How Pressure Reducing Valves Work OPERATION Apollo pressure reducing valves are shipped in the OPEN position. Their internal seat is held open by a compression spring. Compression is applied to the spring by an adjusting screw working on a spring button. The amount of force on the diaphragm by the valve spring determines the reduced pressure downstream of the regulating valve. The standard setting is 50 psig. During static (no-flow) conditions, the valve is closed because the diaphragm force is greater than the valve spring force. Outlet pressure drops once flow...

WATER PRESSURE REDUCING VALVES For General Purpose Residential & Light to Medium Commercial Applications Apollo PR Series pressure reducing valves provide automatic control of excessive water pressure and problem supply fluctuations. These models are designed to reduce pressures of up to 300 PSI to a more manageable range. Factory set at 50 PSI, they adjust with a turn of a screw. They feature a built-in by-pass and strainer, and comply with ASSE 1003 and CSA B356 standards. They are listed with IAPMO and the City of Los Angeles. PR Series valves are built for long, reliable service with an all-bronze...

WATER PRESSURE REDUCING VALVES For General Purpose Residential & Light to Medium Commercial Applications MATERIALS Description Adj. Screw (Zinc Plated Stl.) Hex Nut (Zinc Plated Stl.) Cap (Cast Bronze) Spring Disc (Zinc Plated Steel) Cartridge Bolt Pressure Plate (Zinc Plated Steel) Friction Ring (Zinc Plated Steel) Diaphragm (FDA Nitrile) Stem (Brass) Cartridge Housing (Brass) O-ring (FDA Nitrile) O-ring (FDA Nitrile) Screen (300 Series SS) Description Seal, Cartridge (Polypropylene) Seat Ring (300 Series SS) Washer (Brass) Seat Disc (FDA EPDM) Seat Holder (Brass) Washer (Polypropylene) Seat...

WATER PRESSURE REDUCING VALVES For General Purpose Residential & Light to Medium Commercial Applications PR SERIES (36) MODEL NUMBER MATRIX PR X UNION Blank - Single Union D - Double Union T - No Union X GAUGE Blank - No Gauge P - With Gauge Port G - With Gauge X PRESSURE SETTING Blank - 25-75 psig L - 10-35 psig H - 75-125 psig X MISCELLANEOUS Blank - No Option A - Stainless Steel Trim* * Sealed cage with stainless steel adjusting screw for vault installation. PART NUMBER MATRIX 36 36LF X CONNECTION 1 - Single Union NPT 2 - No Union NPT 3 - Single Union Solder x NPT 4 - Double Union NPT 5 -...

WATER PRESSURE REDUCING VALVES Compact Design for Residential & Light Commercial Applications Versatile, all-purpose Apollo PRC Series pressure reducing valves handle pressures up to 400 PSI. Compact and with a built-in thermal expansion by-pass, they’re designed to protect ­ residential and commercial water distribution systems from excessive pressures. The valves’ integral thermoplastic cage helps protect the inner adjusting spring from galvanic corrosion. Built for reliable, long-term service, PRC valves offer an all-bronze body, stainless steel strainer and seat. They comply with ASSE 1003...

WATER PRESSURE REDUCING VALVES Compact Design for Residential & Light Commercial Applications For additional information, submittal sheets and manuals, visit www.apollovalves.com

WATER PRESSURE REDUCING VALVES Compact Design for Residential & Light Commercial Applications PRC SERIES (36C) MODEL NUMBER MATRIX PRC X UNION Blank - Single Union D - Double Union T - No Union X GAUGE Blank - No Gauge P - With Gauge Port G - With Gauge X X PRESSURE SETTING (ADJ) MISCELLANEOUS Blank - 25-75 psig Blank - No Option L - 10-35 psig H - 75-125 psig Note: Two letter union type offered in double union connection only. Union connections are shipped loose. X CONNECTION Blank - FNPT x FNPT SINGLE UNION ONLY Blank - FNPT x FNPT S - Solder x FNPT C - CPVC x FNPT X - PEX x FNPT E - 90° Elbow...

WATER PRESSURE REDUCING VALVES Light Duty Residential & Commercial Application Designed for light duty residential and commercial applications to protect water supplies from excessive pressure. Excellent flow performance at low pressure drop. The dezincification resistant bronze body and dielectric polymer cage provide maximum corrosion resistance. Designed for easy inline servicing with simple cartridge removal. They meet ASSE 1003 and CSA B356 standards. They are listed with IAPMO and the city of Los Angeles. • Balanced piston design • Sealed cage for vault installations • Built-in thermal...

WATER PRESSURE REDUCING VALVES Light Duty Residential & Commercial Application PRE SERIES (36E) Description Body (Bronze, ASTM B584-C84400) Assy, Cartridge (Noryl/Brass/EPDM) Assy, Cap (Acetal) Spring (Music Wire ASTM A228) Nut 5/16-18 (Stainless Steel) Bolt, 5/16-18 x 2 (Stainless Steel) Washer, Spring (Steel Plated) Friction Ring (Brass) Nameplate (Aluminum) Washer (BUNA-N) Nut, Union (Brass, ASTM B16-C36000) Tailpiece (Brass, ASTM B16-C36000) FLOW CHART Fall Off is the difference between the PRV’s set pressure and the flowing pressure at any given demand.