Overview
The Victaulic LPC R20 3″ gasket is a precision-engineered sealing ring for Victaulic grooved pipe couplings. Designed for 3-inch pipe with 88.9/89.1 mm OD specifications, this gasket provides the pressure-responsive triple-seal technology that Victaulic is known for across industrial and commercial piping systems. The R20 model is part of Victaulic’s comprehensive gasket lineup for mechanical joint applications in water, pneumatic, hydraulic, and process piping.
Key Features
- Pressure-responsive seal — gasket provides increased sealing action as internal pressure increases
- Compatible piping materials — creates permanent, leak-tight triple seal on steel, stainless steel, aluminum, PVC, ductile iron and copper pipe
- EPDM/Nitrile construction — dual-material gasket option for broad chemical and temperature compatibility
- Molded design — gasket molded to fit internal cavity of coupling housing
- Secure groove fit — engineered for 3″ grooved couplings with precise OD tolerance matching
Technical Specifications
- Pipe Size: 3 inches (DN75)
- OD Specification: 88.9 mm / 89.1 mm
- Gasket Type: EPDM / Nitrile elastomer
- Design: Pressure-responsive groove gasket
- Coupling Style: Grooved (OGS — Original Groove System)
- Material Compatibility: Steel, stainless steel, aluminum, PVC, ductile iron, copper
- Function: Creates triple seal between pipe ends and grooves
- Manufacturer: Victaulic Company
Typical Applications
- Potable and non-potable water distribution systems
- HVAC chilled water and hot water loops
- Hydraulic power transmission lines
- Pneumatic compressed air systems
- Industrial process piping
- Fire protection systems
- Pump discharge and suction lines
Compatibility & Replacements
Compatible With
- Victaulic grooved pipe couplings (3″ / DN75 size)
- Victaulic Style 88 couplings
- Victaulic OGS (Original Groove System) fittings
- 3″ cut-grooved and roll-grooved pipe
- Standard industrial piping materials (steel, stainless, aluminum, PVC, ductile iron)
Replaces / Drop-In Replacement For
- Victaulic OGS gaskets for 3″ couplings with 88.9–89.1 mm OD
- Original LPC R20 series gasket seals
- Compatible with Style 88.9 coupling gaskets
Works With
- Victaulic grooved coupling installation systems
- Standard mechanical joint assembly tools
- Victaulic pressure-rated coupling housings (ductile iron construction)
- Compliant with ASTM A536 and applicable piping standards








