Link Seal® Modular Seals
Link-Seal® modular seals are considered to be the premier method for permanently sealing pipes of any size passing through walls, floors and ceilings.
PSI Link-Seal® Modular Seals Features
Description
Link-Seal® modular seals are considered to be the premier method for permanently sealing pipes of any size passing through walls, floors and ceilings. In fact, any cylindrical object may be quickly, easily and permanently sealed, as they pass through barriers, by the patented Link-Seal® modular seal design.
Ductile iron, concrete, metal as well as plastic pipes may be hydrostatically sealed within walls to hold up to 20 psig (40 feet of static head). Electrical or telecommunications cable may be sealed within conduit as they enter vaults or manholes. The annular space between carrier pipes passing through casings may be sealed against the entry of water, soil or backfill material.
With a wide variety of hardware/elastomer combinations, Link-Seal® modular seals are easily configured to achieve the best possible match for service conditions encountered. High temperature seals, fire seals (Factory Mutual Approved) and oil resistant seals may be ordered to meet special or unique service applications. For the system approach, metal or non-conductive Century-Line® sleeves with water stops may be ordered with Link-Seal® modular seals to ensure correct positioning and a water tight seal of the installation within poured concrete walls.
Link-Seal® modular seals are also available for a wide variety of special applications, temperature extremes, exotic chemical combinations and for “out of round” or non-centered applications.
Features and Benefits
Saves time and money
- Link-Seal® modular seals install in up to 75% less time compared to lead-oakum joints, hand fitted flashings,mastics or casing boots.
Positive hydrostatic seal
- Link-Seal® modular seals are rated at 20 psig (40 feet of head), which exceeds the performance requirements of most applications.
Long seal life
- Link-Seal® modular seals are designed for use as a permanent seal. Seal elements are specially compounded to resist aging and attack from ozone, sunlight, water and a wide range of chemicals.
Maximum protection against corrosion
- Standard fasteners have a two-part zinc dichromate and proprietary corrosion inhibiting coating.
- Corrosion resistant 316 stainless steel available for maximum corrosion protection.
Certification/Approvals
- Factory Mutual Fire Approvals.
- Also a wide variety of approvals from various Federal agencies, associations, code groups, laboratories and organizations.
ISO Quality Assurance
- Link-Seal® modular seals are manufactured in an ISO 9001:2000 certified facility.
Configure a Link-Seal® modular seal to match your application
- 16 sizes, color coded EPDM, Nitrile, & Silicone elastomers may be used with various hardware options to match performance characteristics with service conditions.
| Model “C” or “L” Link-Seal Modular Seal | ||
 |
Suitable for use in water, direct ground burial and atmospheric conditions. Provides electrical insulation where cathodic protection is required. | Type: Standard Color: Black or Blue Seal Element: EPDM (Black), EPDM (Blue) Pressure Plates: Composite Bolts & Nuts: Steel with 2-part Zinc Dichromate & Proprietary Corrosion Inhibiting Coating Temp. Range: -40°F to +250°F. (-40°C to +121°C.)* |
| Model “S-316” Link-Seal Modular Seal | ||
 |
For chemical processing waste water treatment. EPDM rubber is resistant to most inorganic acids and alkalis, some organic chemicals (acetone, alcohol, ketones). | Type: Stainless Color: Black or Blue Seal Element: EPDM (Black), EPDM (Blue) Pressure Plates: Composite Bolts & Nuts: 316 Stainless Steel Temp. Range: -40°F to +250°F. (-40°C to +121°C.)* |
| Model “O” Link-Seal Modular Seal | ||
 |
Nitrile rubber is resistant to oils, fuel and many solvents (gasoline, motor oil, kerosene, methane, jet fuel, hydraulic fluid, water, etc.). | Type: Oil Resistant Color: Green Seal Element: Nitrile (Green) Pressure Plates: Composite Bolts & Nuts: Steel with 2-part Zinc Dichromate & Proprietary Corrosion Inhibiting Coating Temp. Range: -40°F to +210°F. (-40°C to +99°C.)* |
| Model OS-316 Link-Seal Modular Seal | ||
 |
Combination of oil-resistant rubber and stainless steel hardware. | Type: Oil Resistant Color: Green Seal Element: Nitrile (Green) Pressure Plates: Composite Bolts & Nuts: 316 Stainless Steel Temp. Range: -40°F to +210°F. (-40°C to +99°C.) |
| Model T Link-Seal Modular Seal | ||
 |
Silicone rubber is ideal for temperature extremes. “T” model is Factory Mutual approved. | Type: High/Low Temperature Color:Grey Seal Element: Silicone (Grey) Pressure Plates: Steel Zinc Dichromate Bolts & Nuts: Steel with 2-part Zinc Dichromate & Proprietary Corrosion Inhibiting Coating Temp. Range: -67°F to +400°F. (-55°C to +204°C.) |
| Model FD/FS Link-Seal Modular Seal | ||
 |
Double seal for added protection. | Type: Fire Seals Color: Grey Seal Element: Silicone (Grey) Pressure Plates: Steel Zinc Dichromate Bolts & Nuts: Steel with 2-part Zinc Dichromate & Proprietary Corrosion Inhibiting Coating Temp. Range: -67°F to +400°F. (-55°C to +204°C.)* |
| Sustained operation near temperature limits may affect life expectancy. | ||
Specification
| PROPERTY | ASTM METHOD |
EPDM (EPDM L) |
NITRILE | SILICONE |
|---|---|---|---|---|
| Hardness (shore A) | D-2240 | 50 ±5 (40 ±5) | 50 ±5 | 50 ±5 |
| Tensile | D-412 | 1450 psi | 1300 psi | 860 psi |
| Elongation | D-412 | 400% | 300% | 250% |
| Compression Set | S-395 | 15% 22 hrs. @ 158°F (70°C) |
45% 22 hrs. @ 212°F (100°C) |
40% 22 hrs. @ 350°F (177°C) |
| Specific Gravity | D-297 | 1.10 | 1.15 | 1.40 |
| PROPERTY | ASTM METHOD | VALUE |
|---|---|---|
| Izod Impact – Notched | D-256 | 2.05 ft-lb/in |
| Tensile Strength @ Yield | D-638 | 20,000 psi |
| Tensile Strength – Break | D-638 | 20,250 psi |
| Flexural Strength @ Yield | D-790 | 30,750 psi |
| Flexural Modulus | D-790 | 1,124,000 psi |
| Elongation, Break | D-638 | 11.07% |
| Specific Gravity | D-792 | 1.38 |
| Moisture Content | — | 0.18% |
| Standard: Carbon Steel |
Carbon steel, zinc dichromated per ASTM B633 with an additional corrosion inhibiting proprietary organic coating. (passes 1470 hour salt spray test) Tensile Strength = 60,000 psi, minimum. |
| Option: Stainless Steel |
ANSI Type = 316, Per ASTM F593-95 Tensile Strength = 85,000 psi, average. |
Mechanical Seal and Sleeve Specification
Penetration Seals
Use a modular, mechanical seal, consisting of rubber links shaped to continuously fill the annular space between the pipe and the wall opening. Link-Seal® pressure plates shall be molded of glass reinforced nylon. Hardware shall be mild steel with a 60,000 psi minimum tensile strength and 2-part Zinc Dichromate coating per ASTM B-633 and Organic Coating, tested in accordance with ASTM B-117 to pass a 1,500-hour salt spray test (or 316 Stainless Steel). Coloration shall be throughout elastomer for positive field inspection. Each link shall have permanent identification of the size and manufacturer’s name molded into the pressure plate and sealing element. The Contractor will submit to verify the modular seals are domestically manufactured at a plant with a current ISO-9001:2000 registration. Copy of ISO-9001:2000 registrations shall be a submittal item. PSI-Thunderline/ Link-Seal® Modular Seal as manufactured by Pipeline Seal & Insulator, Inc, Houston, TX, or pre-approved equal.
Sleeves and Wall Openings
A. For diameters up to 24.81″ install molded non-metallic high density polyethylene sleeves (HDPE) with integral hollow, molded water-stop ring four inches larger than the outside diameter of the sleeve itself. End caps and reinforcing ribs, domestically manufactured in an approved ISO-9001:2000 facility. Century-Line® Sleeve as manufactured by Pipeline Seal & Insulator, Inc, Houston, TX., or engineered pre-approved equal.
B. For openings from 29.25″ to 64.74″ in diameter, use a modular hole-forming system consisting of interlocking HDPE plastic discs, domestically manufactured in an ISO-9001:2000 facility. The system shall provide a round hole in conformance with Link Seal® Modular Seal sizing data. Cell-Cast® Hole Forming Discs as manufactured by Pipeline Seal & Insulator, Inc, Houston, TX, or engineer pre-approved equal.
Consideration of brands other than mentioned above shall be submitted to the Engineer for evaluation at least 10 days prior to bid due date and shall include evidence of a minimum of 25 years of successful in-service application of the mechanical seal, as well as current ISO-9001:2000 registration.
Ordering
 |
The best way to quickly and easily size Link-Seal® Modular Seals is to use the on-line Seal-Finder™ program. Click on the adjacent logo to size both Link-Seal® Modular Seals and Century-Line® Sleeves. |
 |
Click on the logo for more detailed ordering instructions included in a 12 page selection guide. |
 |
Click on the logo for more detailed ordering instructions included in a 32 page engineering manual. |
 |
Click on the logo for sizing charts when using Link-Seal® Modular Seals specifically with Century-Line® Sleeves. |
|
Click on the logo for sizing charts when using Link-Seal® Modular Seals specifically with WS Steel Sleeves. |
|
Click on the logo for sizing charts when using Link-Seal® Modular Seals specifically with Cast or Core Bit Drilled Holes. |
Warranty
Manufacturer’s warranty statement will be supplied upon request to Allied Corrosion Industries, Inc.
Link Seal Installation Guides
 |
Click on the logo for complete step-by-step installation guide with photographs detailing how to install the Link-Seal® Modular Seal. |
 |
Click on the logo for complete step-by-step installation guide with photographs detailing how to install Cell-Cast® Disks. |
 |
Click on the logo for complete step-by-step installation guide with photographs detailing how to install Century-Line® Sleeves. |
