This document is the installation, use and maintenance manual for the Apollo LD141/WD141 series butterfly valves.
The Apollo LD141/WD141 Series Butterfly Valve is available in wafer or lug body styles and is designed to fit between ANSI 125 and 150 pound flat or raised face flanges. Key design features include a through-shaft design with a spline connection between the stem and disc, and a stretch-resistant, non-collapsible, blowout-proof phenolic-backed cartridge seat. The valves are factory tested to 110% of full rated pressure and meet NSF 372 and NSF 61 standards.
| Operating Pressure (2"-12") | 200 psig (13.78 bar) |
|---|---|
| Operating Pressure (14"-24") | 150 psig (10.34 bar) |
| Flange Compatibility | ANSI 125 Cast iron and ANSI 150 Steel |
| Seat Material Temperature (Buna-N) | -12 °C to 82 °C |
| Seat Material Temperature (EPDM) | -34 °C to 135 °C |
| Seat Material Temperature (Viton) | -29 °C to 149 °C |
No, flange gaskets are not required because the seat sealing face is wider than the valve body, providing a leak-proof seal when compressed.
Valves should be stored with the disc in the partially open position, indoors in a clean, dry, well-ventilated place away from corrosive materials.
No, regular lubrication is not required as the valves are designed for extended service with minimal wear.