Proco - Model Series 300 - Flanged Rubber Pipe Connectors
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.
Available styles include:
The Style 310 is precision molded to specific lengths, as listed in Table 3. The built-in rubber flanges are manufactured to adhere to ANSI 125/150# drilling specifications.
The Proco Style 310 is manufactured using conventional methods which allow for fabrication to a specific custom length requirement. It is also available in pre-manufactured lengths (shown in Table 3). The Style 310 is standard with 125/150# drilling, but can also be fabricated to meet other drilling patterns.
The Style 320 is designed for high-pressure applications and is manufactured similarly to Style 310. Flanges are usually produced to ANSI 250/300# drilling specifications, but other drilling patterns can be accommodated upon request.
Some notable features of the Series 300 Flanged Rubber Pipe Connectors include:
- Electrolysis and electrolytic action prevention
- Compensation for systems misalignment
- Chemical or abrasive service capability at minimal cost
PROCO Series 300 Rubber Pipe is designed for tough demanding industrial and commercial applications as found in: Chemical-Petrochemical and Industrial Process Piping Systems, Power Generating Plants, Steel Mills, Marine Services, Pulp/Paper Systems, Water-Waste/Water- Sewage and Pollution Control Systems. Specific equipment applications could include: Pumps, Cooling Towers, Compressors, Blowers, Fans, Absorption Machines, etc. Installed next to mechanical equipment or between the anchor points of a piping system, specify the P ROCO Series 300 to: (1) Isolate Mechanical Vibration, (2) Reduce System Noise, (3) Absorb Pipe Movement/Stress, (4) Compensate Alignment/Offset, (5) Eliminate Electrolysis, (6) Protect Against Start-Up/Surge Forces. When you need an engineered rubber solution to a piping system problem, call PROCO.
Engineered For Your Application. Each PROCO Series 300 Rubber Pipe is constructed with a smooth interior tube specially compounded from an elastomer that satisfies the Chemical-Abrasion-Sound requirements of your application (See Table 2). Multiple plies of tough fabric and helical spring steel wire are embedded into the pipe wall during the manufacturing process to provide a product designed for your pressure and vacuum requirements. Available styles include:
Style 310-R: Precision molded to specific lengths as listed in Table 3. The built-in rubber flanges are drilled to ANSI - 125/150#.
Style 310: Manufactured by conventional methods which allow for fabrication to a specific length requirement, in addition to lengths as shown in Table 3. Standard with 125/150# drilling, the Style 310 can also be fabricated to meet other drilling patterns.
Style 320: Designed for high pressure applications (See Table 4); this connector manufactured similar to Style 310. Flanges are usually drilled to ANSI 250/300# with other drilling patterns furnished on request.
Absorbs Pipe-Wall and Fluid-Borne Noise. The PROCO quiet-operating Series 300 is a replacement for “sound transmitting” metallic connectors. Compare the Acoustical Impedance ratings of rubber and other materials, as shown in Table 1. Pipe-Wall sound is absorbed as the noise carried by the piping both enters and leaves the rubber section.
Connector length further influences absorption as sound loses energy traveling axially through the rubber. For optimum lengths, see Table 3. Fluid-borne noise is absorbed by the volumetric expansion (breathing) of the connector. This action cushions water hammer, and smoothes out pumping impulses.
Isolate Vibrations and Motion. Vibration originating from mechanical equipment is absorbed by the PROCO Series 300. Rubber pipe connectors should be installed right after and ahead of the equipment generating the vibration, thus isolating the equipment. As most machinery vibrates in a radial direction from the main shaft, for optimum performance the pipe connector should be installed horizontally and parallel to this shaft. While PROCO Series 300 Rubber Pipe will accept some axial motion, it is principally designed to accept transverse motion. When installed at right angles to the direction of the pipe motion (movement), PROCO rubber pipe connectors can absorb large amounts of expansion.
For major two-plane vibration/motion it is best to use two flexible rubber pipe connectors installed at right angles, one to absorb the horizontal vibration and one to absorb the vertical vibration. A tension anchor is usually advisable to stabilize the elbow between the connectors. Note: For maximum vibration transmission reduction, the piping section beyond the rubber connector must be anchored or sufficiently rigid.
Prevents Electrolysis and Electrolytic Action. In chemical applications when metallic connectors are used, they are generally of a metal dissimilar from the pipe-line. This could create an electrolytic galvanic action that could be destructive to the connector, equipment or piping system. The use of the PROCO Series 300 eliminates this potential hazard. Additionally, because the all-rubber connector eliminates metal-to-metal contact at the flange face, electrolysis is stopped.
Systems Misalignment Compensation. In a rigid piping system, the installation of the PROCO Series 300 Rubber Pipe adds a flexible component that is automatically selfcorrecting for misalignment created by structural movements caused by settling, expansion or ground shifts (See Table 3).
Chemical Or Abrasive Service Capability At Minimal Cost: Expensive, exotic metal connectors for chemical service can be replaced with the PROCO Series 300. Fabricated with low cost chemical resistant elastomer such as: Chlorobutyl, EPDM, Gum, CSM, Neoprene and Nitrile; insures a rubber connector compatible with the fluid being pumped or piped (See Table 1). Our Gum or Neoprene products should be specified when handling abrasive slurries. Use PROCO “Chemical to Elastomer Guide” to specify an elastomer for your requirements.
Rigid attachment of piping to critical or mechanical equipment can produce excessive loading. Thermal or mechanically created strain-stress-shock are cushioned and absorbed with the installation of a flexible PROCO Series 300 Rubber Pipe.
Full Flow With Less Turbulence Or Material Entrapment.
The smooth bore of the PROCO Series 300 Rubber Pipe Connector allows full flow without turbulence. Metallic connectors depend upon bellows or convolutions to absorb motion. These bellows/ convolutions could create flow turbulence and also create an area for material entrapment or bacteria growth.
Leak Free Without Gaskets Or Packing.
The full-face rubber flange of the PROCO Series 300 Rubber Pipe Connector is self gasketing.
Additionally, the Style 310-R features a molded in place “O-Ring” on each flange-face for faster sealing with less torque at installation and less long-term maintenance. Unlike interlocked metallic connectors, the Series 300 features a onepiece seamless tube that does not require packing. Our rubber connector is suitable for all air, gas, and fluids, including “searching” thin fluids.
Control Rod Assembly Usage.
PROCO Style 491 Control Units are designed to protect the Series 300 Pipe Connector from excessive elongation. Control rods must be used: (1) when the piping containing the rubber pipe connector is not anchored and, (2) when the rubber pipe connector is attached to resiliently supported pipe or equipment.