Proco Products, Inc.

The PROCO Proflex Style 710 check valve is designed to bolt directly to both existing flanges, as well as new installations. The flanges are drilled 150# standard, however other drilling standards are available upon request. The ProFlex Style 710 can be installed in either a vertical or horizontal application.

The PROCO ProFlex Style 730 check valve is designed to easily slip over an existing pipe and be attached with heavy-duty stainless steel clamps. It can be installed in both vertical and horizontal applications.

The PROCO ProFlex 720 check valve is designed to fit directly inside of an existing pipe. This particular valve is supplied with a flat face rubber flange, which allows installation between existing pipe flanges, and eliminates the need for a valve body. Various drilling standards are available upon request.

The PROCO ProFlex Style 740 check valve is designed to slip directly into an existing pipe, and is supplied with an expandable clamp to secure it in place.

The PROCO ProFlex Style 750 check valve is designed with a full metal enclosure, for easy installation within existing piping systems.

The PROCO ProFlex Style 770 and 780 in-line rubber check valves feature many design benefits, including: All-rubber construction to resist abrasive slurries. NSF 61 standard construction. Ultra-quiet operation, with no water hammer. Unique design to prevent backflow. Negligible maintenance and energy costs. Will not warp or freeze. Quick interchange with any flap type check valve. Available in sizes from 1” to 96”. Available with special...

Proco Style RE-231 wide arch expansion joints are built to withstand even the most rigorous piping system configurations. They allow for axial compression or axial extension, and lateral deflection as well as angular and torsional movements.

Proco Style RC-231 wide arch expansion joints are built to withstand even the most rigorous piping system configurations. They allow for axial compression or axial extension, and lateral deflection as well as angular and torsional movements.

The Proco Style 271 rubber expansion joint is a single super-wide flowing arch design. It’s self-cleaning, which eliminates the need for a filled arch design and makes it the perfect choice for slurries. The Style 271 can replace and be interchanged with hand-built narrow/wide arch, molded wide arch, and spherical type expansion joints.

Proco Style 231 expansion joints are built to withstand even the most rigorous piping system configurations. They are single wide-arch products, specifically constructed to reduce or eliminate common occurrences such as noise and vibration, misalignment/offset, or turbulence. Style 231 expansion joints are appropriate for a wide variety of industrial applications, and are available in open arch and filled arch configurations.

Proco Style 232 expansion joints are built to withstand even the most rigorous piping system configurations. They are double wide-arch products, specifically constructed to reduce or eliminate common occurrences such as noise and vibration, misalignment/offset, or turbulence. Style 232 expansion joints are appropriate for a wide variety of industrial applications, and are available in open arch and filled arch configurations.

Proco Series 230 Rubber Expansion Joints are designed for piping systems to absorb pipe movements, relieve stress, reduce system noise/vibration, compensate for misalignment/offset and to protect rotating mechanical equipment against start-up surge forces. Proco Style 233 and 233FA: Triple wide-arch product where most movement is needed. Available in open arch and filled arch configurations.

Proco Series 233L expansion joints are built to withstand even the most rigorous piping system configurations. They are low-profile, triple-arch products which are specifically designed to absorb directional movements of rigid pipe systems, as well as reduce noise and vibration, and compensate for misalignment due to long-term settling.

Proco Series 234L expansion joints are built to withstand even the most rigorous piping system configurations. They are low-profile, quadruple-wide arch products that are precisely designed to absorb directional movements of rigid pipe systems, as well as reduce noise and vibration, and compensate for misalignment due to long-term settling.

Proco Series 240 expansion joints are molded single-sphere arch expansion joints which are built to withstand even the most rigorous piping system configurations. They allow for axial compression or axial extension, and lateral deflection as well as angular movement. Their easy installation makes them the logical choice for even the toughest jobs.

Proco Series 242 expansion joints are molded double-sphere arch expansion joints which are built to withstand even the most rigorous piping system configurations. They allow for axial compression or axial extension, and lateral deflection as well as angular movement. Their easy installation makes them the logical choice for even the toughest jobs.

The Proco Style FF-6201 flexible metal pump connector has been designed to control a variety of mechanical stresses, such as: Vibration control, noise reduction, relief from system stressors, prevention of system shock, compensation for misalignment and movement.

The Proco Style TTS-6201 flexible metal pump connector has been designed to control a variety of mechanical stresses, such as: Vibration control, noise reduction, relief from system stressors, prevention of system shock, compensation for misalignment and movement.

The Proco Style SEB-6201 flexible metal pump connector has been designed to control a variety of mechanical stresses, such as: Vibration control, noise reduction, relief from system stressors, prevention of system shock, compensation for misalignment and movement.

The Proco Style GG-6201 flexible metal pump connector has been designed to control a variety of mechanical stresses, such as: Vibration control, noise reduction, relief from system stressors, prevention of system shock, compensation for misalignment and movement.

The Proco Style R-6201 flexible metal pump connector has been designed to control a variety of mechanical stresses, such as: Vibration control, noise reduction, relief from system stressors, prevention of system shock, compensation for misalignment and movement.

The Proco Style GF-6201 flexible metal pump connector has been designed to control a variety of mechanical stresses, such as: Vibration control, noise reduction, relief from system stressors, prevention of system shock, compensation for misalignment and movement.

The Proco Series 251/BT Lined Expansion Joints are designed for tough, demanding, corrosive chemical applications such as chemical and petrochemical process facilities and highly corrosive industrial piping and pollution control systems. Use of the 251/BT expansion joints is especially prevalent in the paper industry, where their ability to resist corrosive attack at elevated temperature and pressure is unrivaled by other competitive metal or...

The PROCO 231/ET Lined Expansion Joints are designed for tough, demanding, corrosive chemical applications such as chemical and petrochemical process facilities and highly corrosive industrial piping and pollution control systems. Use of the 231/ET expansion joints is especially prevalent in the paper industry, where their ability to resist corrosive attack at elevated temperature and pressure is unrivaled by other competitive metal or plastic...

The Proco 9013-EP Low Torque Gasket is fully molded for precise sizing, and is manufactured with the PTFE film bonded to the EPDM rubber gasket. A unique outer sealing ring around each bolt hole is added, for additional sealing safety. These special gaskets are for use on plastic, fiberglass, glass or other piping systems which require minimal sealing forces. The outer sealing rings provide the utmost in sealing at extremely low bolt torques.

The Proco 9013-ET Low Torque Gasket is fully molded for precise sizing, and is manufactured with the PTFE film bonded directly to the EPDM rubber gasket. A unique outer sealing ring around each bolt hole is added for additional sealing safety. These special gaskets are for use on plastic, fiberglass, glass or other piping systems which require minimal sealing forces. The outer sealing rings provide the utmost in sealing at extremely low bolt...

The Proco Series 450 Rubber Navy Sleeve Type Connectors are constructed of neoprene rubber, and reinforced with impregnated woven nylon. Sealing beads are molded on the interior of the sleeve to provide extra sealing action for the clamping area. Internal reinforcing rings prevent deformation of the connector during surges or temporary negative pressure conditions. Outer reinforcement rings are added to provide even more external reinforcement.

The Proco Series 190-D Rubber Navy Sleeve Type Connectors are constructed of neoprene rubber, are reinforced with impregnated woven nylon and come with an aluminized glass outer cover (meets Mil-E-15330 Class B specifications). Sealing beads are molded on the interior of the sleeve to provide extra sealing action for the clamping area. Internal reinforcing rings prevent deformation of the connector during surges or temporary negative pressure...

Proco Series 261R wide arch expansion joints have the lowest spring rates of any expansion joints currently on the market. They also boast low forces to deflect, and are built to withstand even the most rigorous piping system configurations. They allow for axial compression or axial extension, and lateral deflection as well as angular and torsional movements.

Proco Series 262R wide arch expansion joints have the lowest spring rates of any expansion joints currently on the market. They also boast low forces to deflect, and are built to withstand even the most rigorous piping system configurations. They allow for axial compression or axial extension, and lateral deflection as well as angular and torsional movements.

The Proco Style 440 BE Molded Expansion Joints can be used for corrosive applications that are found in industries such as chemical-petrochemical, industrial process piping systems, power generation plants, pulp/paper plants, water and wastewater sewage, and pollution control systems. Wherever metallic joints, lap joints, or PTFE and FEP-lined rubber expansion joints were previously used, the Proco Style 440 BE can also be used.

The Proco Pen-Seal is designed to provide a gas and water-tight seal. All sizes have been tested to withstand a hydrostatic seal up to 20 psig or 40 feet of head pressure, in addition to withstanding temperatures up to 250 °F. The Pen-Seal’s standard elastomer material is EPDM, but a Nitrile material is available if the seal may come in contact with hydrocarbons, oil, gas, jet fuel, or miscellaneous solvents. The Pen-Seal utilizes...

The PROCO Series 261R Wide Arch Expansion Joint is specifically designed for use with Plastic or FRP Piping Systems. A replacement for the standard spool-type expansion joints, the PROCO 261R has exceptionally low spring rates compared to its conventional counterparts. With its low forces to compress, extend or laterally offset, the PROCO Series 261R can be used on plastic or FRP pipes, pumps, valves or tanks without fear of the expansion joint being...

Each Proco Series 300 Flanged Rubber Pipe Connector is specifically engineered for your particular application. Multiple plies of tough fabric and helical spring steel wire are embedded into the pipe wall during the manufacturing process, resulting in a product precisely designed for your pressure and vacuum requirements.