SDR Series

Champion’s SDR retainerless single‑disc wafer check valves combine a lightweight, space‑saving design with simple in‑field repairability and an integrated one‑piece disc‑and‑arm assembly that boosts reliability. Built for horizontal or vertical installations, they deliver dependable, uni‑directional flow protection across demanding applications such as gaseous compressors and blowers, water and oil pumps, and biofuels production.

• Lightweight Construction: “80%–90% weight reduction compared to full body swing check valves”
• Retainerless Safety: Zero external fasteners for enhanced fugitive‑emission control and improved safety
• Versatile Installation: Designed for “horizontal and vertical orientations”
• Integrated Disc & Arm Assembly: “Single piece cast disc and arm assembly increases unit integrity”
• Space‑Saving Wafer Body: Simplifies piping layouts and “optimizes space utilization”
• Lower Installation Costs: Lightweight, compact design reduces handling and structural requirements
• Simple In‑Field Repairability: “Simple in‑field repairability to mitigate downtime”
• Traditional or Zero‑Emission Designs: Available in standard SDR retainerless configurations
• Wide Service Compatibility: Suitable for “gaseous compressors and blowers, water and oil pumps, and biofuels production”
• ASME Class 125–900 Options: Broad pressure‑class coverage for diverse system requirements

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