Aalberts integrated piping systems (IPS), a global leader in advanced integrated piping systems for the distribution and control of liquids and gasses, highlights its “Apollo”® 215L butterfly valve product line, engineered to meet the evolving demands of power generation applications. These valves are designed to provide exceptional flow control, durability, and ease of maintenance, ensuring optimal system performance and longevity.
The “Apollo”® 215L butterfly valve product line excels in hydroelectric, nuclear, and fossil fuel plants, serving applications such as cooling water systems in power plants and boiler feed and steam handling. It is distinguished by its double offset design, which provides improved sealing and reduced wear compared to concentric designs. The valves incorporate RTFM (TFM 1700) seat material, offering greater wear resistance and a higher modulus for improved overall performance. Consistent sealing over time is ensured by disc spring washers with live loading technology, which also compensates for wear.
Shaft support and smooth operation are maximized through the use of full-length upper and lower bearings, contributing to the valve’s longevity. Carbon steel valve bodies receive excellent corrosion protection through a polyamide epoxy primer with a polyurethane topcoat. The inclusion of a positive cast disc stop prevents seat damage from over-travel of the disc, while tangential disc pins are placed in compression rather than shear, eliminating potential failure of the disc-stem connection.
Reliable seat support is provided by a multi-bolt seat retainer, making the valves suitable for bi-directional dead-end service. The “Apollo”® 215L line is available in both wafer and lug body styles, offering flexibility for diverse installation requirements. With multiple pressure classes available (150, 300, and 600) and a size range from 2″ to 36” (Class 150), these butterfly valves accommodate a wide range of application pressures and pipeline sizes.
For specialized applications, fire-safe and metal seat options are available, providing solutions for high-temperature and critical environments. Valves are available in CF8M (316 SS) or WCB (Carbon Steel) for the body and CF8M for the disc, providing multiple body/disc material options. The product line features an ISO 5211 mounting flange, allowing for seamless integration with Apollo actuators and manual operators.
Engineers can leverage pressure-temperature ratings for different materials, sizes, and pressure classes, along with flow coefficient (Cv) values for various valve sizes and opening angles, to optimize system design. Varying weights are available for different sizes and pressure classes to aid in installation planning. An optional UHMWPE seat material is available for specific applications.
The “Apollo”® 215L butterfly valves also incorporate a thrust ring to center the disc, ensuring tight shutoff and long service life. End cap seals are available in PTFE, UHMWPE, or graphite to meet different sealing requirements. The 17-4 PH stainless steel shaft is blowout proof and provides high strength and good corrosion resistance. An extended neck allows for 2” of pipe insulation. Jacking taps allow the use of seat retainer bolts to aid in retainer removal. A rocker packing gland features a shaped packing gland that compensates for uneven adjustment of gland nuts. An anti-extrusion ring prevents the extrusion of shaft seals, maintaining optimum seal.
For more information about the “Apollo”® 215L butterfly valve product line and its specifications, please visit https://aalberts-ips.us/products/category/?search=215L.
