Access our library of technical brochures for Proco expansion joints, ProFlex™ rubber check valves, pipe penetration seals, and more. Click any cover image or the Download button to open the specification sheet.
Brochures
Spool-Type Wide Arch Rubber Expansion Joints — Series 230
Versatile spool-type expansion joints for general-purpose HVAC, plumbing, and industrial piping systems requiring noise and vibration attenuation.
Spool-Type Super Wide Arch Rubber Expansion Joints — Series 271
Self-cleaning super wide-arch spool-type joints designed for slurry, solids-bearing, and wastewater flows where internal clogging must be prevented.
Large Lateral Offset Rubber Expansion Joints — Series 233-234L
Triple and quadruple-arch joints designed to accommodate large lateral offsets and settlement in municipal water, wastewater, and industrial piping.
Concentric & Eccentric Reducer Expansion Joints — Series RC & RE
Single wide-arch rubber reducer joints in concentric and eccentric designs for pipe size transitions while absorbing movement and reducing noise.
ProFlex™ Rubber Duckbill Check Valves — Series 700
Fully passive, maintenance-free duckbill check valves for sewage outfalls and tidal operations — 1″ to 84″ ID, NSF/ANSI 61 certified, with no seizing or rusting.
Molded Spherical Expansion Joints — Series 240/242
Single and double-sphere molded rubber joints delivering multi-directional movement capability with NSF/ANSI 61 certification for potable water systems.
Molded Wide Arch Expansion Joint — Series 260R
Low spring-rate wide-arch joints engineered specifically for plastic and FRP piping systems to absorb thermal growth and isolate vibration.
PTFE Lined Rubber Expansion Joints — Series 231/ET
Tire-cord reinforced PTFE-lined joints offering unrivalled corrosion resistance across the full pH range, especially suited to pulp and paper applications.
PTFE & FEP Lined Rubber Expansion Joints — Series 251/BT
Precision-engineered PTFE-lined expansion joints designed for high chemical resistance and thermal stability in corrosive process environments.
Molded PTFE Expansion Joints — Series 440
Convoluted PTFE expansion joints for highly corrosive chemical and petrochemical piping, with in-stock sizes from 1″ to 24″ ID in 2, 3, and 5 convolutions.
Non-Metallic Flexible Fan Connectors — Series 500
Round and rectangular ducting expansion joints matched to industrial fan flanges, rated to 500°F in Viton, EPDM, Neoprene, and Nitrile elastomers.
Braided Flexible Metal Connectors — Series 6201
High-performance stainless-steel braided pump connectors with flanged or grooved ends for vibration isolation across a broad range of fluids and temperatures.
Flanged Rubber Pipe Connectors / Vibration Dampeners — Series 300
Economical in-stock flanged rubber pipe connectors from 1″ to 24″ ID providing vibration isolation and noise reduction for pump and HVAC installations.
Pipe Penetration Seals — PenSeal
Mechanical rubber link seals forming a gas- and water-tight barrier where pipes pass through walls, floors, vaults, and casings — rated to 20 psig and 250°F.
Technical Guides
Chemical / Elastomer Resistance Guide
Comprehensive resistance tables mapping hundreds of chemical media to compatible Proco elastomers — essential reference for correct expansion joint material selection.
Online Chemical Guide
Selection of Elastomer — Chemical Resistance Tables. Interactive web tool for selecting the correct Proco elastomer based on media, temperature, and concentration.
Elastomer Properties Guide
Comparative properties of typical Proco Products elastomers — side-by-side physical, thermal, and chemical data to support precise material specification.
Interchange Guide
Identify and convert your expansion joint requirement — cross-reference competitor part numbers to equivalent Proco Products specifications.
Company Overview
Linecard — 31 Reasons to Specify Proco Products
A concise overview of Proco’s full product range, stocking capabilities, and competitive advantages across expansion joints, check valves, and penetration seals.
