CHECK VALVES 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...

check valves table of contents Protection Against Reverse Flow CHECK VALVES EXTEND SYSTEM LIFE In any liquid or gas system where reverse flow cannot be tolerated, a quick-responding check valve is a necessity. Check valves that close slowly permit flow reversal to occur in the line which can cause severe mechanical shock. As the valve finally seats, high peak pressure pulses and shock waves are generated on the downstream side due to the media being forced to a sudden stop. Upstream, the momentum is not restricted which can create voids in the flow, filling with air or vapor to cause additional,...

check valves Ball Cone® Check Valves 61 Series (Model CVB) 61-100 Female x Female Threaded 1/4” through 3” 61-200 Male x Female Threaded 1/4” through 2” The Apollo Model CVB check valve with rugged bronze body and patented design (U.S. Pat. No. 4,172,465) RPTFE ball-cone check provides reliable protection against reverse flow. It is spring-loaded for fast seating and center guided for optimum alignment. FEATURES • 1/2 psi opening pressure • Tight shut-off with liquid media • 400 psig CWP • 125 psig steam rating @350°F max Straight-through design American-made construction CRN OC 11218.5C Lead...

check valves Ball Cone® Check Valves 62 Series (Model cvs) 62-100 Female x Female Threaded 1/4” through 2” The Apollo Model CVS is uniquely suited for applications in corrosive environments, including chemical processing, pulp and paper and other process industries. The rugged stainless steel body and RPTFE ball cone check provide reliable, patented protection against reverse flow. Features Unique (U.S. Patent #4,172,465) ball cone design provides tight shutoff in reverse flow conditions. The body of the valve is investment cast stainless steel for longer life in severe environments. It is spring-loaded...

check valves In-Line Check Valves Check Valve Part Numbering System – Ball Cone Check Models 6 X type 1 = Ball Cone (NPT-F x F) 2 = Ball Cone (NPT-M x F) 0 = Ball Cone Repair Kit 0 = .5 psig Cracking Pressure 2 = .2 psig Cracking Pressure 01 = Standard PO1 = BSPP Thread TO1 = BSPT Thread 17 = Satin Chrome Plated 57 = Oxygen Cleaned A1 = Less Spring E05 = 5 psig Opening Pressure* E10 = 10 psig Opening Pressure* 1 = Bronze 1LF = Lead Free Bronze 2 = Stainless Steel *Available in 1/4” through 1” Only. (Note: Not all combinations are available. Contact Customer Service for verification.) Note: The...

check valves Soft Seated Check Valves 61-500/61-600 Series (Model CVBE) 61-500 Female x Female Threaded 1/4” through 2” 61-600 Female x Female Sweat 1/2” through 2” The Apollo Model CVBE check valve is ideally suited for hydronic heating and other low flow applications. The rugged bronze body and check provide reliable protection against reverse flow. FEATURES The 61-500/61-600 features an EPDM soft seat for bubble tight shutoff, reduced noise and less vibration. It is spring-loaded for fast seating action and center guided for optimum alignment. Straight-through flow minimizes velocity change....

check valves Soft Seated Check Valves 61-500/61-600 Series bronze (cont.) EPDM Seat Pressure - PSIG

check valves Soft Seated Check Valves 62-500 Series (model cvse) 62-500 Female x Female Threaded 1/4” through 1” The Apollo Model CVSE is ideal for fluid flow applications in tough industrial environments. The stainless steel body and check provide lasting protection against reverse flow. The 62-500 features a Fluorocarbon (Viton®) soft seat for bubble tight shutoff, reduced noise and vibration. It is spring-loaded for fast seating action and center guided for optimum alignment. Straight-through flow minimizes velocity change. The spring is fully protected from the flow stream, helping extend...

check valves Soft Seated Check Valves 62-500 Series (model cvse) (cont.) Note: Not recommended for use with reciprocating pumps and similar applications. Low flows may result in undesirable noise and premature valve failure. See page 6 for additional precautions. Viton® Seat Pressure - PSIG Check compatibility of seat material Check Valve Part Numbering System – Soft Seat Models 62 type Soft Seat (NPT-F x F) Soft Seat (Solder) Soft Seat Repair Kit (Viton only) 0 = .5 psig Cracking Pressure 2 = .2 psig Cracking Pressure 01 = Standard (Viton seat) PO1 = BSPP Thread (ISO 228) TO1 = BSPT Thread (EN...

check valves Mini Check Valves 61-700 Series (model cv) The Apollo Model CV check valve is ideally suited for cold water, and air applications for prevention of reverse flow. The modular check cartridge provides superior leak-tight performance with low pressure loss. It is rated at 230 PSIG with a maximum temperature of 200°F. FEATURES • 0.5 psi cracking pressure • Acetyl silicone check with: Silicone rubber seat (1/4 & 3/8) Nitrile seat (1/2-1) 61-700 Female x Female Pipe Thread 1/4” through 1” materials of construction Body Brass, ASTM B16 Check Module Acetal/Brass/Silicone/Buna-N Spring Stainless...

check valves Ball Valve with Integral Check 70-100-BC The 70-100-BC Series ball valve combines two functions in a single design: positive shut-off and bubble-tight check capabilities. The BC Series is a unidirectional version of the industry-standard Apollo 70 Series ball valve. An easy flow design and superior check valve make these valves a smart choice for water or air in mechanical systems or OEM applications. Rated at 250 psi WOG and maximum temperature of 200°F. FEATURES • Blowout-proof stems • RPTFE seats and stuffing box ring • Adjustable packing gland 70-100-BC Female x Female Threaded...