[Adoption Results] Waterproof Sleeve for Underground Exterior Walls / Pipe-in-Sleeve TM

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last updated：May 06, 2026

EPJ

Please rest assured that pipe-in-sleeve has been adopted in public sector projects for 'flood prevention construction' and 'waterproofing promotion initiatives.'

This is the record of adoption (delivery) for the well-known underground wall waterproof sleeve "Pipe-in-Sleeve." For underground wall sections, we apply "waterproof treatment" in advance at the factory to the outer space (gap) between the PVC sleeve and the FEP, and then prefabricate it for the site. There is no need for cumbersome work at the construction site; after installation, it basically requires only joint connections. It ensures measures against water ingress and waterproofing stability! Achieving work efficiency and labor-saving! <Features of Pipe-in-Sleeve (abbreviated as PIS)> ■ Excellent waterproofing through prefabrication: Promoting measures against water ingress and waterproofing ■ Labor-saving at construction sites! Reducing the burden on workers and preventing troubles in advance! ■ No skilled techniques required! Simplifying complex tasks! ■ Flexibility to accommodate individual design specifications of projects! ■ Improved work efficiency, standardized quality, and enhanced maintainability! [To Designers and Contractors] FEP pull-through, bell mouth terminal installation, etc., can be arranged according to individual site specifications! Furthermore, it is equipped to handle unexpected leaks! A versatile and highly adaptable product that also incorporates maintenance and serviceability. *For details, please request catalogs or other materials from "Contact Us" or view the PDF data from "Download."

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basic information

<Specifications> ●Water Resistance ・Test Value (Smooth Inner Pipe) 0.1MPa × 72 hours (This product does not guarantee complete waterproofing.) ●Composition ・Sleeve Material: Rigid Polyvinyl Chloride Pipe (JIS K 6741) VU or VP ・Sleeve Penetration Pipe: Underground Electric Wire Protection Pipe, Furukawa Electric Co., Ltd. Eflex (or Flame Retardant Eflex) ・Sealing Material: Curing Waterproof Material, filled in 2 locations <Notes> * This product does not include a "water stop ring." Please prepare a water stop ring that matches the outer diameter of the sleeve according to the manufacturer's specifications. * Please select FEP/penetration pipe connection components from Furukawa Electric Co., Ltd. Eflex series. * The "waterproof performance" of the sealing material (curing waterproof material) is based on internal measurement values and is not a guaranteed value. [Contact Information] ・Planning/Proposal: Furukawa Elecom Co., Ltd. New Business Promotion Office TEL: 03-5297-8711 FAX: 03-5297-8705 ・Design/Manufacturing: EPJ Co., Ltd. TEL: 03-5643-8137 FAX: 03-5643-8138 Email: info@epj-inc.co.jp

Price range

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Delivery Time

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Applications/Examples of results

Please download the detailed adoption results from the PDF catalog page.

Detailed information

Pipe-in-sleeve installation 1
Pipe-in-sleeve installation 2
Pipe-in-sleeve installation 3
Before pipe-in-sleeve demolition
After pipe-in-sleeve demolition
Pipe-in-sleeve connection preparation complete.
Pipe-in-sleeve connection work 1
Pipe-in-sleeve connection completed.
Pipe-in-sleeve connection completed (close-up)

Line up（16）

Model number	overview
PIS30U（PIS30NU）	Conduit pipe / FEP-30 (flame-retardant FEP-30) * Rigid PVC pipe VU-50
PIS40U（PIS40NU）	Conduit Pipe / FEP-40 (Flame Retardant FEP-40) * Rigid Polyvinyl Chloride Pipe VU-65
PIS50U（PIS50NU）	Conduit Pipe / FEP-50 (Flame Retardant FEP-50) * Rigid PVC Pipe VU-75
PIS65U（PIS65NU）	Through pipe / FEP-65 (flame-retardant FEP-65) * Rigid PVC pipe VU-100
PIS80U（PIS80NU）	Through pipe / FEP-80 (Flame-retardant FEP-80) * Rigid PVC pipe VU-125
PIS100U（PIS100NU）	Through pipe / FEP-100 (flame-retardant FEP-100) * Rigid PVC pipe VU-150
PIS125U（PIS125NU）	Conduit Pipe / FEP-125 (Flame Retardant FEP-125) * Rigid PVC Pipe VU-200
PIS150U（PIS150NU）	Through pipe / FEP-150 (flame-retardant FEP-150) * Rigid PVC pipe VU-250
PIS30P（PIS30NP）	Conduit Pipe / FEP-30 (Flame Retardant FEP-30) * Rigid Polyvinyl Chloride Pipe VP-50
PIS40P（PIS40NP）	Penetrating pipe / FEP-40 (flame-retardant FEP-40) * Rigid PVC pipe VP-65
PIS50P（PIS50NP）	Conduit Pipe / FEP-50 (Flame Retardant FEP-50) * Rigid PVC Pipe VP-75
PIS65P（PIS65NP）	Conduit Pipe / FEP-65 (Flame Retardant FEP-65) * Rigid Polyvinyl Chloride Pipe VP-100
PIS80P（PIS80NP）	Through pipe / FEP-80 (Flame-retardant FEP-80) * Rigid PVC pipe VP-125
PIS100P（PIS100NP）	Conduit Pipe / FEP-100 (Flame Retardant FEP-100) * Rigid PVC Pipe VP-150
PIS125P（PIS125NP）	Conduit Pipe / FEP-125 (Flame Retardant FEP-125) * Rigid Polyvinyl Chloride Pipe VP-200
PIS150P（PIS150NP）	Conduit Pipe / FEP-150 (Flame Retardant FEP-150) * Rigid PVC Pipe VP-250

catalog（3）

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【Adoption Results】Waterproof Sleeve for Underground Exterior Walls Pipe in Sleeve (TM)

OTHER

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[Underground beam sleeve/flood prevention/waterproofing] Waterproof sleeve for underground exterior walls "Pipe in Sleeve" A3 size spread

PRODUCT

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[Underground beam sleeve/flood prevention/waterproofing] Waterproof sleeve for underground exterior walls "Pipe in Sleeve" A4 size

PRODUCT

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CAD data（48）

Model number	overview	File
【Drawing (VU-50)】Pipe in Sleeve: PIS30U (Flame Retardant PIS30NU)	Pipe in Sleeve: Through Flex FP-30 (Flame Retardant Flex NFP-30) / JIS PVC Sleeve VU-50	2D jww ( 0B)
【Drawing (VU-50)】Pipe in Sleeve: PIS30U (Flame Retardant PIS30NU)	Pipe in Sleeve: Through Flex FP-30 (Flame Retardant Flex NFP-30) / JIS PVC Sleeve VU-50	2D dxf ( 0B)
【Drawing (VU-50)】Pipe in Sleeve: PIS30U (Flame Retardant PIS30NU)	Pipe in Sleeve: Through Flex FP-30 (Flame Retardant Flex NFP-30) / JIS PVC Sleeve VU-50	2D pdf ( 78KB)
【Drawing (VU-65)】Pipe in Sleeve: PIS40U (Flame-retardant PIS40NU)	Pipe in Sleeve: Through Flex FP-40 (Flame Retardant Flex NFP-40) / JIS PVC Sleeve VU-65	2D pdf ( 160KB)
【Drawing (VU-65)】Pipe in Sleeve: PIS40U (Flame-retardant PIS40NU)	Pipe in Sleeve: Through Flex FP-40 (Flame Retardant Flex NFP-40) / JIS PVC Sleeve VU-65	2D jww ( 0B)
【Drawing (VU-65)】Pipe in Sleeve: PIS40U (Flame-retardant PIS40NU)	Pipe in Sleeve: Through Flex FP-40 (Flame Retardant Flex NFP-40) / JIS PVC Sleeve VU-65	2D dxf ( 0B)
【Drawing (VU-75)】Pipe in Sleeve: PIS50U (Flame Retardant PIS50NU)	Pipe in Sleeve: Through Flex FP-50 (Flame Retardant Flex NFP-50) / JIS PVC Sleeve VU-75	2D dxf ( 0B)
【Drawing (VU-75)】Pipe in Sleeve: PIS50U (Flame Retardant PIS50NU)	Pipe in Sleeve: Through Flex FP-50 (Flame Retardant Flex NFP-50) / JIS PVC Sleeve VU-75	2D jww ( 0B)
【Drawing (VU-75)】Pipe in Sleeve: PIS50U (Flame Retardant PIS50NU)	Pipe in Sleeve: Through Flex FP-50 (Flame Retardant Flex NFP-50) / JIS PVC Sleeve VU-75	2D pdf ( 72KB)
【Drawing (VU-100)】Pipe in Sleeve: PIS65U (Flame Retardant PIS65NU)	Pipe in Sleeve: Through E-Flex FP-65 (Flame Retardant E-Flex NFP-65) / JIS PVC Sleeve VU-100	2D pdf ( 71KB)
【Drawing (VU-100)】Pipe in Sleeve: PIS65U (Flame Retardant PIS65NU)	Pipe in Sleeve: Through E-Flex FP-65 (Flame Retardant E-Flex NFP-65) / JIS PVC Sleeve VU-100	2D jww ( 0B)
【Drawing (VU-100)】Pipe in Sleeve: PIS65U (Flame Retardant PIS65NU)	Pipe in Sleeve: Through E-Flex FP-65 (Flame Retardant E-Flex NFP-65) / JIS PVC Sleeve VU-100	2D dxf ( 0B)
【Drawing (VU-125)】Pipe in Sleeve: PIS80U (Flame Retardant PIS80NU)	Pipe in Sleeve: Through Flex FP-80 (Flame Retardant Flex NFP-80) / JIS PVC Sleeve VU-125	2D pdf ( 69KB)
【Drawing (VU-125)】Pipe in Sleeve: PIS80U (Flame Retardant PIS80NU)	Pipe in Sleeve: Through Flex FP-80 (Flame Retardant Flex NFP-80) / JIS PVC Sleeve VU-125	2D jww ( 0B)
【Drawing (VU-125)】Pipe in Sleeve: PIS80U (Flame Retardant PIS80NU)	Pipe in Sleeve: Through Flex FP-80 (Flame Retardant Flex NFP-80) / JIS PVC Sleeve VU-125	2D dxf ( 0B)
【Drawing (VU-150)】Pipe in Sleeve: PIS100U (Flame Retardant PIS100NU)	Pipe in Sleeve: Through Flex FP-100 (Flame Retardant Flex NFP-100) / JIS PVC Sleeve VU-150	2D pdf ( 69KB)
【Drawing (VU-150)】Pipe in Sleeve: PIS100U (Flame Retardant PIS100NU)	Pipe in Sleeve: Through Flex FP-100 (Flame Retardant Flex NFP-100) / JIS PVC Sleeve VU-150	2D dxf ( 0B)
【Drawing (VU-150)】Pipe in Sleeve: PIS100U (Flame Retardant PIS100NU)	Pipe in Sleeve: Through Flex FP-100 (Flame Retardant Flex NFP-100) / JIS PVC Sleeve VU-150	2D jww ( 0B)
【Drawing (VU-200)】Pipe in Sleeve: PIS125U (Flame-retardant PIS125NU)	Pipe in Sleeve: Through Flex FP-125 (Flame Retardant Flex NFP-125) / JIS PVC Sleeve VU-200	2D dxf ( 183KB)
【Drawing (VU-200)】Pipe in Sleeve: PIS125U (Flame-retardant PIS125NU)	Pipe in Sleeve: Through Flex FP-125 (Flame Retardant Flex NFP-125) / JIS PVC Sleeve VU-200	2D jww ( 89KB)
【Drawing (VU-200)】Pipe in Sleeve: PIS125U (Flame-retardant PIS125NU)	Pipe in Sleeve: Through Flex FP-125 (Flame Retardant Flex NFP-125) / JIS PVC Sleeve VU-200	2D pdf ( 68KB)
【Drawing (VU-250)】Pipe in Sleeve: PIS150U (Flame-retardant PIS150NU)	Pipe in Sleeve: Through Flex FP-150 (Flame Retardant Flex NFP-150) / JIS PVC Sleeve VU-250	2D dxf ( 180KB)
【Drawing (VU-250)】Pipe in Sleeve: PIS150U (Flame-retardant PIS150NU)	Pipe in Sleeve: Through Flex FP-150 (Flame Retardant Flex NFP-150) / JIS PVC Sleeve VU-250	2D jww ( 85KB)
【Drawing (VU-250)】Pipe in Sleeve: PIS150U (Flame-retardant PIS150NU)	Pipe in Sleeve: Through Flex FP-150 (Flame Retardant Flex NFP-150) / JIS PVC Sleeve VU-250	2D pdf ( 66KB)
【Drawing (VP-50)】Pipe in Sleeve: PIS30P (Flame Retardant PIS30NP)	Pipe in Sleeve: Through Flex FP-30 (Flame Retardant Flex NFP-30) / JIS PVC Sleeve VP-50	2D pdf ( 78KB)
【Drawing (VP-50)】Pipe in Sleeve: PIS30P (Flame Retardant PIS30NP)	Pipe in Sleeve: Through Flex FP-30 (Flame Retardant Flex NFP-30) / JIS PVC Sleeve VP-50	2D jww ( 0B)
【Drawing (VP-50)】Pipe in Sleeve: PIS30P (Flame Retardant PIS30NP)	Pipe in Sleeve: Through Flex FP-30 (Flame Retardant Flex NFP-30) / JIS PVC Sleeve VP-50	2D dxf ( 0B)
【Drawing (VP-65)】Pipe in Sleeve: PIS40P (Flame Retardant PIS40NP)	Pipe in Sleeve: Through Flex FP-40 (Flame Retardant Flex NFP-40) / JIS PVC Sleeve VP-65	2D pdf ( 160KB)
【Drawing (VP-65)】Pipe in Sleeve: PIS40P (Flame Retardant PIS40NP)	Pipe in Sleeve: Through Flex FP-40 (Flame Retardant Flex NFP-40) / JIS PVC Sleeve VP-65	2D jww ( 0B)
【Drawing (VP-65)】Pipe in Sleeve: PIS40P (Flame Retardant PIS40NP)	Pipe in Sleeve: Through Flex FP-40 (Flame Retardant Flex NFP-40) / JIS PVC Sleeve VP-65	2D dxf ( 0B)
【Drawing (VP-75)】Pipe in Sleeve: PIS50P (Flame Retardant PIS50NP)	Pipe in Sleeve: Through E-Flex FP-50 (Flame Retardant E-Flex NFP-50) / JIS PVC Sleeve VP-75	2D pdf ( 72KB)
【Drawing (VP-75)】Pipe in Sleeve: PIS50P (Flame Retardant PIS50NP)	Pipe in Sleeve: Through E-Flex FP-50 (Flame Retardant E-Flex NFP-50) / JIS PVC Sleeve VP-75	2D jww ( 0B)
【Drawing (VP-75)】Pipe in Sleeve: PIS50P (Flame Retardant PIS50NP)	Pipe in Sleeve: Through E-Flex FP-50 (Flame Retardant E-Flex NFP-50) / JIS PVC Sleeve VP-75	2D dxf ( 0B)
【Drawing (VP-100)】Pipe in Sleeve: PIS65P (Flame Retardant PIS65NP)	Pipe in Sleeve: Through E-Flex FP-65 (Flame Retardant E-Flex NFP-65) / JIS PVC Sleeve VP-100	2D pdf ( 71KB)
【Drawing (VP-100)】Pipe in Sleeve: PIS65P (Flame Retardant PIS65NP)	Pipe in Sleeve: Through E-Flex FP-65 (Flame Retardant E-Flex NFP-65) / JIS PVC Sleeve VP-100	2D jww ( 0B)
【Drawing (VP-100)】Pipe in Sleeve: PIS65P (Flame Retardant PIS65NP)	Pipe in Sleeve: Through E-Flex FP-65 (Flame Retardant E-Flex NFP-65) / JIS PVC Sleeve VP-100	2D dxf ( 0B)
【Drawing (VP-125)】Pipe in Sleeve: PIS80P (Flame Retardant PIS80NP)	Pipe in Sleeve: Through Flex FP-80 (Flame Retardant Flex NFP-80) / JIS PVC Sleeve VP-125	2D dxf ( 0B)
【Drawing (VP-125)】Pipe in Sleeve: PIS80P (Flame Retardant PIS80NP)	Pipe in Sleeve: Through Flex FP-80 (Flame Retardant Flex NFP-80) / JIS PVC Sleeve VP-125	2D pdf ( 69KB)
【Drawing (VP-125)】Pipe in Sleeve: PIS80P (Flame Retardant PIS80NP)	Pipe in Sleeve: Through Flex FP-80 (Flame Retardant Flex NFP-80) / JIS PVC Sleeve VP-125	2D jww ( 0B)
【Drawing (VP-150)】Pipe in Sleeve: PIS100P (Flame Retardant PIS100NP)	Pipe in Sleeve: Through Flex FP-100 (Flame Retardant Flex NFP-100) / JIS PVC Sleeve VP-150	2D dxf ( 0B)
【Drawing (VP-150)】Pipe in Sleeve: PIS100P (Flame Retardant PIS100NP)	Pipe in Sleeve: Through Flex FP-100 (Flame Retardant Flex NFP-100) / JIS PVC Sleeve VP-150	2D jww ( 0B)
【Drawing (VP-150)】Pipe in Sleeve: PIS100P (Flame Retardant PIS100NP)	Pipe in Sleeve: Through Flex FP-100 (Flame Retardant Flex NFP-100) / JIS PVC Sleeve VP-150	2D pdf ( 69KB)
【Drawing (VP-200)】Pipe in Sleeve: PIS125P (Flame Retardant PIS125NP)	Pipe in Sleeve: Through Flex FP-125 (Flame Retardant Flex NFP-125) / JIS PVC Sleeve VP-200	2D pdf ( 67KB)
【Drawing (VP-200)】Pipe in Sleeve: PIS125P (Flame Retardant PIS125NP)	Pipe in Sleeve: Through Flex FP-125 (Flame Retardant Flex NFP-125) / JIS PVC Sleeve VP-200	2D jww ( 88KB)
【Drawing (VP-200)】Pipe in Sleeve: PIS125P (Flame Retardant PIS125NP)	Pipe in Sleeve: Through Flex FP-125 (Flame Retardant Flex NFP-125) / JIS PVC Sleeve VP-200	2D dxf ( 177KB)
【Drawing (VP-250)】Pipe in Sleeve: PIS150P (Flame Retardant PIS150NP)	Pipe in Sleeve: Through Flex FP-150 (Flame Retardant Flex NFP-150) / JIS PVC Sleeve VP-250	2D pdf ( 70KB)
【Drawing (VP-250)】Pipe in Sleeve: PIS150P (Flame Retardant PIS150NP)	Pipe in Sleeve: Through Flex FP-150 (Flame Retardant Flex NFP-150) / JIS PVC Sleeve VP-250	2D jww ( 85KB)
【Drawing (VP-250)】Pipe in Sleeve: PIS150P (Flame Retardant PIS150NP)	Pipe in Sleeve: Through Flex FP-150 (Flame Retardant Flex NFP-150) / JIS PVC Sleeve VP-250	2D dxf ( 177KB)