Ball Cone Check Valves

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Apollo Ball Cone Check Valves Bodies: Stainless Steel, Bronze, or Brass Connections: Threaded or Solder Apollo Series: 61-100, 61-200, 61-500, 61-600, 61-700, 62-100, 62-500 IN-LINE CHECK VALVES Series 61 and lead free (61LF) check valves feature bronze body construction and are available in sizes 1/4” to 3” for use with water, steam, oil, air and inert gases. Series 62 model in stainless steel with investment cast body are sized from 1/4” to 2” for use in more severe applications and corrosive environments. 61 and 62 Series check valves are available with either RPTFE ball cone or elastomer soft seats. They come equipped with 316 stainless steel springs. All wetted parts are bronze/brass (61 Series) or stainless steel (62 Series). SPRING ASSISTED CLOSING Apollo’s 61 and 62 Series feature short check travel and spring assisted closing. This ensures the valve closes quickly, before reversal of flow, helping to eliminate water hammer, its associated noise, and damage to piping and machinery. LOW CRACKING PRESSURE Apollo’s standard 61 and 62 Series checks operate at a low 1/2 psi cracking pressure. An extra-light-spring version of the valve is available as an option. A 5-pound or 10-pound cracking pressure spring is also available on models through 1”. TIGHT...OR BUBBLE TIGHT Patented Apollo Ball Cone® check valves (61-100, 61-200 and 62-100) feature a tight-sealing RPTFE ball-shaped check which seats against the conical interior face of the valve’s metal retainer. This simple design provides exceptional resistance to wear and corrosion. But, where even tighter sealing is required, choose the 61-500 or 61-600, featuring EPDM (elastomer) seat or 62-500, featuring a Fluorocarbon (Viton®) seat, for a bubble-tight seal. A Nitrile seat is optional. 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