Circular Sealing Assemblies · CR / CR PPS / CR PPS WS
One round cut-out. One transit that already fits it.
CR series round sealing assemblies are dimensioned against the round transit sizes already in use across BESS, data centre and switchgear enclosures. Confirm your cable range and hole diameter against the table below before you request a sample.
Specification
CR series, with center plug
Stainless steel housing (304 or 316L) with EPDM or silicone sealing element. Each model seals a defined cable diameter range through a fixed hole size.
| Model | Cable range | Hole diameter | Weight |
|---|---|---|---|
| CR25 | 3.6-12 mm | Ø26 mm | 0.04 kg |
| CR31 | 4-17 mm | Ø32 mm | 0.06 kg |
| CR43 | 4-23 mm | Ø44 mm | 0.2 kg |
| CR50 | 8-30 mm | Ø51 mm | 0.3 kg |
| CR75 | 24-54 mm | Ø76 mm | 0.7 kg |
| CR100 | 48-70 mm | Ø101 mm | 1.0 kg |
| CR125 | 66-98 mm | Ø126 mm | 1.6 kg |
Full range extends to CR600E for 494-536 mm penetrations. Contact us for intermediate and large-diameter sizes not shown here.
CR PPS WS
Back-to-back kit for plastic pipe penetrations
Sealing range 4-119 mm across the CR31-CR150E sizes.
Complies with SOLAS Chapter II-1, Regulation 13.2.3 (2014 Consolidated Edition) and IMO MSC/Circ.736 paragraph 2.1.
This compliance statement applies to CR PPS WS only, as printed on the source selection manual. It does not extend to the plain CR series.
Second-source check
Cross-reference by dimension
Match your existing round transit by hole diameter, not by brand. If the cut-out matches, the cable range should be confirmed before ordering.
| Existing transit diameter | DEWIN equivalent | Cut-out diameter | Fit check |
|---|---|---|---|
| Ø26 mm | CR25 | Ø26 mm | Drop-in, no rework |
| Ø32 mm | CR31 | Ø32 mm | Drop-in, no rework |
| Ø44 mm | CR43 | Ø44 mm | Drop-in, no rework |
| Ø51 mm | CR50 | Ø51 mm | Drop-in, no rework |
| Ø76 mm | CR75 | Ø76 mm | Confirm cable range |
| Ø101 mm | CR100 | Ø101 mm | Confirm cable range |
Applications
Where round transits get specified
Energy storage
BESS containers
Round penetrations for single cables and small conduit runs between battery racks and control compartments.
Data centre
Modular data centre halls
Individually sealed round entries through prefabricated wall panels, sized to a single cable or fibre bundle.
Marine
Shipboard bulkhead penetrations
CR PPS WS kits for plastic pipe penetrations through steel bulkheads, per the SOLAS compliance referenced above.
Document downloads
Files for enclosure design
Imagery
Installed detail and factory evidence
For full certification scope and current status across the DEWIN product range, see our certifications page.
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