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Non-Metallic Expansion Joints
Arch Type Connectors (RA): When compression, elongation, lateral or angular movements are a consideration of the installation.
U-Type Connectors (RU): When ONLY vibration or sound limiting characteristics are a consideration of the installation.
Series: RA-PVS Pressure/Vacuum Service. Senior Flexonics Pathway arch type for general service features steel body rings held in place with exclusive ring enveloper system. Can be specified for service in most applications. Also available in U-Type. Series: RU-PVS.
Series: RA-HPGS High Pressure/General Service. A modification of Series RA-PVS with additional body fabric plies for higher pressure service with full vacuum ratings.
Series: RA-HPS High Pressure Service. Engineered for high pressure service. Also available in U-Type. Series: RU-HPS.
Series: RA-VHP Very High Pressure. For extreme pressure applications. Not available in more than two arches. Tapers not available.
Series: RA-LPS Low Pressure Service. For pressures less than 25 PSIG and limited vacuum. Also available in U-Type. Series: RU-LPS
Series: RA-MST I Military Specification. Meets MIL-E-15330D, Class A, Type I and ASTM-F-1123.
Series: RU-MST III meets MIL-E-15330D, Class A, Type III.
ALL STYLES LISTED CONFORM TO U.S. COAST GUARD AND A.B.S. SPECIFICATIONS.
With Engineered Design, Quality Materials and Workmanship
| 1. |
Cover Coating of Hypalon for extra product protection against ozone, weather and environment. |
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| 2. |
Elastomer Cover selected for resistance to the atmosphere around the product. Choice of natural, neoprene, nitrile, butyl, Hypalon*, EPDM, Viton*, gum and SBR elastomers. |
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| 3. |
Deep Wide Arch engineered to give controlled resilience at the hinge point with maximum movement. |
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| 4. |
Reinforcing Rings of heavy-duty solid steel embedded in elastomer for maximum pressure service. |
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| 5. |
Body Ring Enveloper ties rings on one side of the arch to the other. Prevents ring migration during pressure surges and excessive movements. Extra fabric plies over the arch add to total pressure rating. |
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| 6. |
Elastomer Filler between reinforcing rings absorbs vibrations, sounds and electrolysis. |
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| 7. |
Standard Body Fabric, elastomer impregnated, is a high tensile polyester. Other fabrics are available. Engineered relationship of fabric plies to the body reinforcing rings determines positive/negative pressures of the product. |
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| 8. |
Extra Flange Plies built in for greater strength of the integral to the body retaining flange. |
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| 9. |
Leak Free One-Piece Tube selected for resistance against media pumped/piped. Wide choice of elastomers including Teflon*. |
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| 10. |
Retaining Rings for flanged products. Split steel; plated for corrosion resistance. Required for all installations. |
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| 11. |
Control Unit Assemblies prevent over extension of expansion joint. Recommended for most applications. Optional sleeve prevents over compression. |
Exhaust Flexible Connectors
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Senior Flexonics Pathway exhaust flexible connectors are specifically designated for low pressure (15 psi) applications that require a high degree of flexibility.
Designed to produce low spring forces with a reduced assembly weight, our exhaust flexible connectors are an ideal solution for vibration and corrosive gas applications such as marine and stationary diesel engines, gas turbines and forced air ducting applications.
Available with plate flanges, angle flanges or weld ends.
How to order:
Example P/N |
| 6 |
HFF |
VV |
50 |
8 |
L |
C |
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EXHAUST CONNECTOR DATA
| Size Range |
2" to 48" NPS* |
Allowable Pressure
Stainless Steel Bellows |
Vacuum to 15 psi |
Temperature Limits
Stainless Steel Bellows |
-20°F to 800°F ** |
| Axial Traverse |
To 4.67" . . .
(depending on size) |
| Lateral Motion |
Up to 0.82" . . .
(depending on size) |
*For sizes larger than 48" consult factory for information.
**With special alloys, temperatures of minus 300°F. to plus 1600°F. can be handled. |
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Materials of Construction
- BELLOWS: ASTM A240 T304
- PIPE: ASTM A53/A106/A516 GR70
- FLANGES: Steel A36/A516GR70 Plate
Angle Carbon Steel
- LINERS: 300 Series Stainless Steel
- COVERS: Carbon Steel
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Angle and Plate Flanges Low Pressure - 5 PSIG Max
Materials of Construction
- Economical flanges for low pressure service <5.
- Can be added to single and universal expansion joints.
Material: carbon steel.
Other materials are available on request.
Single overall length using angle flanges = WW OAL – 6 Inches + 2L.
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