1.5" 150# Pressure Relief Valve
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Singer 106-PR 1.5 in pressure reducing valve for sale. This is a boxed surplus Singer/Mueller water-works pressure reducing valve with visible 2025 PO/order paperwork, attached test report, Singer nameplate, and project labeling. The visible nameplate supports Singer Model 106-PR, 1.5 in size, Made in USA, serial number appearing as 53997389-1, and 400 PSI max inlet. Order paperwork describes the valve as a 1.5 inch Singer 106-PR ductile iron flanged pressure reducing valve with PR-160 pilot.
| Manufacturer | Singer Valve / Singer, a Mueller brand |
| Model | 106-PR |
| Valve type | Pilot-operated pressure reducing valve |
| Nameplate details | Singer; Made in USA; Model 106-PR; serial appears to be 53997389-1; max inlet appears to be 400 PSI |
| Order / PO context | 2025 PO/order |
| Visible paperwork description | 1.5 inch Singer 106-PR ductile iron flanged pressure reducing valve |
| Noted configuration from paperwork | Ductile iron full-port main valve, flanged configuration, fusion epoxy coating, stainless fittings/tubing/control components, PR-160 pressure reducing pilot, 20–200 psi range; buyer to verify exact configuration |
| Test paperwork | Attached Singer/Mueller test report visible, dated 8-5-25, with pass marks and pressure-test entries visible; included |
| Packaging | Boxed with protective packing material and attached paperwork |
Typical Application: This Singer 106-PR is typically used in municipal water, utilities, plant water systems, industrial water distribution, pressure-zone control, and project spare-parts inventory where a pilot-operated pressure reducing valve is required to reduce higher inlet pressure to a steadier lower downstream pressure. Singer’s official product description states that the PR pilot senses downstream pressure and modulates diaphragm pressure to maintain downstream pressure close to the pilot set point. Buyer is responsible for confirming part number, size, flange standard, pressure rating, pilot range, materials, elastomers, set point, fitment, code requirements, media compatibility, and suitability for their application before purchase.