» Pipes & Fittings » D.I. Straight Pipe Repair Clamps for Plastic Pipes

D.I. Straight Pipe Repair Clamps for Plastic Pipes

December 24, 2025

Product Overview

Metalsin’s Ductile Iron Straight Pipe Repair Clamps for plastic piping provide a versatile and robust solution for the maintenance and emergency repair of water supply, drainage, and sewage systems. These repair clamps are specifically engineered for straight pipe sections and are fully compatible with a wide range of plastic materials, including PE, HDPE, PVC, uPVC, and PPR. Understanding that field conditions vary, we offer customizable lengths for every nominal/ standard pipe size to meet specific project requirements, ensuring a precise and secure fit for every application.

D.I. repair clamp for HDPE water pipe leak repair.

A ductile iron straight pipe repair clamp being used for emergency repair at a leak point in an HDPE water supply pipeline.

The construction of Metalsin‘s straight pipe repair clamps for plastic systems features a high-strength, two-piece ductile iron body, a pair of high-performance sealing gaskets (EPDM or NBR), and a complete bolting set (bolts, nuts, and washers). An optional configuration is the integrated vent plug, which allows for air discharge and pressure relief during installation to ensure a perfect seal against the pipe surface. Detailed material grades for each component are outlined in the technical table below.

ComponentMaterial Grade
BodyEN-GJS-450-10
QT450-10
ASTM A536 65-45-12
Sealing GasketsASTM D2000 & ISO 4633
EPDM/NBR
BoltsCarbon Steel Gr. 8.8
ASTM A193 Gr.B8
NutsCarbon Steel Gr. 8
ASTM A194 Gr.8
Vent PlugMalleable Iron (H.D.G)
*Components & material grades.

Drawing, Sizes & Dimensions

Picture & Drawing of str. pipe repair clamp for plastic pipes.

The product photo & technical drawing of D.I. straight pipe repair clamp for plastic piping.

DN
mm
Pipe O.D.
mm
L
mm
5050160
5050300
6363200
6363300
6363500
7575200
7575300
7575500
9090200
9090250
9090300
9090500
110110200
110110250
110110300
110110500
1101101000
125125200
125125500
1251251000
140140200
140140500
1401401000
160160200
160160300
160160500
1601601000
180180200
180180500
1801801000
200200200
200200300
200200500
2002001000
225225200
225225300
225225500
2252251000
250250300
250250500
2502501000
280280500
2802801000
315315200
315315300
315315500
3153151000
355355200
355355500
3553551000
400400200
400400300
400400500
4004001000
450450500
4504501000
500500200
500500300
500500500
5005001000
560560500
5605601000
630630500
6306301000
710710500
7107101000
800800500
8008001000
900900500
100010001000
*Sizes (DN), outside diameter of pipe (Pipe O.D.), face-t0-face length (L) of D.I. straight pipe repair clamps.
*Multiple lengths of each nominal pipe size are provided.

Ductile Iron Repair Clamp
For D.I. PipesBell Joint RepairTight Space Repair
Double-Socket Collar RepairStraight Pipe Repair
For Plastic PipesBell Joint RepairCompact Joint Repair
Double Socket JointStraight Pipe Repair
Axially Restrained RepairB.W. PE Joint Repair
Tee Joint RepairReducer Joint Repair
90° Elbow Repair45° Elbow Repair
For Steel PipesFlange Joint RepairCoupling Joint Repair
Union Joint RepairTee Joint Repair
Elbow Joint RepairStraight Pipe Repair
Grooved Joint RepairGas Joint Repair
For Concrete PipesBell Joint RepairStraight Pipe Repair
*Click to view ductile iron repair clamps for various piping conditions.

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  • Vision

    At Metalsin Tech, we are committed to enabling universal access to safe water and sanitation through integrated supply solutions and exceptional engineering services.

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    Room 502, No.448 Heping West Road, Shijiazhuang, Hebei Province, China
    Tel: +86-311-89642206
    Fax: +86-311-67906676
    Email:  sales@pipingpipeline.com
    Whatsapp: 0086-15076331069