4" Simplex Entry Seal | Cal Am Manufacturing | Water & Air-Tight Duct Seal
The Cal Am 4″ (100 mm) Simplex Entry Seal provides reliable, watertight, and airtight protection for conduit and cable networks. Designed for datacenters, telecom systems, and electrical manholes, this seal prevents water, sediment, and vapor intrusion while ensuring easy, professional installation in both new and retrofit applications.
Constructed from high-grade PVC and thermoplastic elastomer with stainless steel fasteners, it delivers long-lasting strength and corrosion resistance. The split-body design allows quick installation around existing cables—no foam, adhesives, or complicated sealing compounds needed.
Key Features & Benefits
- Multiple Configurations – Available in Simplex, Triplex, and Quadplex versions, plus a new 2" (50 mm) size for smaller conduits.
- Durable Materials – Combines rigid PVC and flexible thermoplastic elastomer with corrosion-resistant stainless steel fasteners.
- Easy Retrofit Installation – Split design allows quick assembly using common hand tools.
- Superior Protection – Seals against water, sediment, and hazardous vapors to protect critical cable networks.
- Eco-Friendly Construction – Made from recyclable materials for long-term sustainability.
Whether sealing new ducts or upgrading existing installations, the 4" Simplex Entry Seal delivers clean, professional results that keep your infrastructure safe and organized for years to come.
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Ordering Information
| Product Number | Data Sheet | Trade Size (in) | Trade Size (mm) | Conduit I.D. (in) | Conduit I.D. (mm) | Port Diameter Range (in) | Port Diameter Range (mm) | JackMoon Ref # |
|---|---|---|---|---|---|---|---|---|
| 7140-100 | 4.00 | 100 | 3.92–4.39 | 99.6–111.5 | 0.70–1.02 | 17.8–25.9 | — | |
| 7140-115 | 4.00 | 100 | 3.92–4.39 | 99.6–111.5 | 1.03–1.17 | 26.2–29.7 | JM-SIM-40S118S | |
| 7140-135 | 4.00 | 100 | 3.92–4.39 | 99.6–111.5 | 1.18–1.37 | 30.0–34.8 | JM-SIM-40S136S | |
| 7140-195 | 4.00 | 100 | 3.92–4.39 | 99.6–111.5 | 1.38–1.96 | 35.1–49.8 | JM-SIM-40S196SB | |
| 7140-225 | 4.00 | 100 | 3.92–4.18 | 99.6–106.2 | 1.92–2.25 | 48.8–57.2 | JM-SIM-40S216S | |
| 7140-250 | 4.00 | 100 | 3.92–4.18 | 99.6–106.2 | 2.25–2.56 | 57.2–65.0 | JM-SIM-40S236S / JM-SIM-40S256SB | |
| 7140-290 | 4.00 | 100 | 3.92–4.18 | 99.6–106.2 | 2.53–2.92 | 64.3–74.2 | JM-SIM-40S291SB |
Note: Cal Am has consolidated several part numbers into broader port ranges for simplified selection. See the reference chart below for cross-references to legacy SKUs.
| Original Product Number | Consolidated Product Number | Trade Size (in) | Trade Size (mm) | Improved Conduit I.D. (in) | Improved Conduit I.D. (mm) | Expanded Port Range (in) | Expanded Port Range (mm) |
|---|---|---|---|---|---|---|---|
| 7140-105 | 7140-115 | 4.00 | 100 | 3.92–4.39 | 99.6–111.5 | 1.03–1.17 | 26.2–29.7 |
| 7140-120 | 7140-135 | 4.00 | 100 | 3.92–4.39 | 99.6–111.5 | 1.18–1.37 | 30.0–34.8 |
| 7140-140 | 7140-195 | 4.00 | 100 | 3.92–4.39 | 99.6–111.5 | 1.38–1.96 | 35.1–49.8 |
| 7140-200 | 7140-225 | 4.00 | 100 | 3.92–4.18 | 99.6–106.2 | 1.92–2.25 | 48.8–57.2 |
| 7140-230 | 7140-250 | 4.00 | 100 | 3.92–4.18 | 99.6–106.2 | 2.25–2.56 | 57.2–65.0 |