Inside a concrete sewer pipe with water flowing through it
EU conformity attestations
CE
Countries supplied
37
Founding manufacturers
3

Our Products

We Offer a Range of Products to Meet Your Needs

How it works underground

Repairs made from inside the pipe, without digging a trench

Each product goes in through an existing manhole and works inside the host pipe. These cutaways show where it sits and what it does.

Cutaway of a buried sewer pipe: a packer expands a stainless steel repair sleeve over a crack, then is withdrawn.
Instant-Lock repair sleeveA packer carries the stainless steel sleeve to the crack and expands it against the wall. The locking gear holds it open and the EPDM jacket seals the defect. No resin, no curing.
Cutaway of a buried pipe: a repair packer presses a fiberglass patch over a hole, the resin cures and the packer is removed.
Resin and fiberglass patchA repair packer presses resin-impregnated fiberglass against the damaged wall. After curing, the packer is deflated and removed, leaving a localized patch.
Cutaway of a buried pipe: a rubber sleeve with two steel bands is expanded over a leaking joint between pipe sections.
Internal joint sealAn EPDM rubber sleeve is pressed to the wall over a leaking joint by stainless steel expansion bands, expanded with a hydraulic installation tool.
Cutaway of a buried pipe: an inflatable plug is placed and inflated, holding back the flow upstream.
Inflatable pipe plugThe plug is inflated in the pipe to hold back flow for isolation, bypass or testing. Inflation pressure and back pressure are separate limits for each model.
Cutaway of a buried pipe: a hydraulic jack lifts a deformed pipe crown back into shape.
Point-repair jackBefore a sleeve or patch, the hydraulic jack braces against the crown and lifts a deformed section back into shape.
Cutaway of a buried pipe: a spinning spray head lines the pipe wall with mortar as it is drawn back.
Mortar sprayerA spinning head sprays mortar onto the wall while it is drawn back, renewing inspection wells, pipelines and culverts from inside.

Why buyers choose Reliance

  • 11 products in 5 families

    Sleeves, internal seals, pipe plugs, packers, resin and repair equipment

  • Direct from specialist manufacturers

    Wenzhou Wantuo, Qingdao Xinya & CNLG

    Read More
  • CE conformity attested

    EU TEST verified technical files for 6 product groups against EN standards

    EU conformity attestations
  • 14 buyer’s guides

    Selection checklists in 22 languages

Customer distribution

Trusted by customers in 37 countries across 6 continents

From our headquarters in Wenzhou, Zhejiang, China, we ship pipe plugs, repair packers, sleeves, seals, resin systems and mortar equipment to pipeline repair teams across Asia, the Middle East, Europe, Africa, the Americas and Oceania. Export packing, published specifications and one point of contact for three manufacturers make cross-border projects simple.

World map of Reliance Trenchless customer countries: 37 countries supplied from headquarters in Wenzhou, Zhejiang, China
Headquarters, Wenzhou, Zhejiang, China
Customer country
  • Asia

    India · Indonesia · Kazakhstan · Kyrgyzstan · Malaysia · Myanmar (Burma) · Philippines · Singapore · South Korea · Sri Lanka · Uzbekistan · Vietnam

  • Middle East

    Qatar · Saudi Arabia · United Arab Emirates

  • Europe

    Austria · France · Germany · Hungary · Italy · Netherlands · Poland · Romania · Russia · Spain · United Kingdom

  • Africa

    Congo - Brazzaville · Nigeria · South Africa

  • North America

    Canada · Mexico · United States

  • South America

    Brazil · Chile · Colombia

  • Oceania

    Australia · New Zealand

How we help

Repair pipes without excavation

Reliance point-repair products are installed from inside the existing pipe. Every product page lists dimensions, specifications and brochures to support your selection.

All Products
Internal Pipe Joint Seal (DN150–4000)

Who We Are

About Our Company

Wenzhou Wantuo
Produces precision pipeline sealing components, including internal pipe seals and Instant-Lock repair sleeves, for pipeline leak repair and maintenance, designed for easy installation and long-term performance.
Qingdao Xinya
Has researched, developed and produced trenchless repair materials since 2010, focusing on CIPP resin, high-pressure pipe plugs and repair packers, with long experience in material formulation for different pipeline conditions and repair scenarios.
CNLG
Manufactures mortar sprayer machines, the equipment used to spray and grout manholes, pipelines and culverts in trenchless rehabilitation and reinforcement work.
Read More
12th China (Chengdu) International Pipeline Expo
Wenzhou Wantuo
Qingdao Xinya
CNLG
Reliance product showroom

EU TEST

EU conformity attestations

EU TEST has verified the technical files for six of our product groups against the EU legislation and standards listed. These are voluntary attestations, not Notified Body certificates.

  • View the CIPP resin attestation

    CIPP resin

    Verification no.
    TD49992501
    Standards
    EN ISO 11296-1:2018; EN ISO 23856:2021
    Technical file
    Construction Products Regulation (EU) No 305/2011
    Valid
    –
  • View the Glass fiber attestation

    Glass fiber

    Verification no.
    TD49752501
    Standards
    EN ISO 23856:2021; EN ISO 13438:2018; EN ISO 12960:2020
    Technical file
    Construction Products Regulation (EU) No 305/2011
    Valid
    –
  • View the Repair packers & pipe plugs attestation

    Repair packers & pipe plugs

    Verification no.
    TD49432501
    Standards
    EN ISO 12100:2010; EN 1610:2015
    Technical file
    Machinery Directive 2006/42/EC
    Valid
    –
  • View the Instant-locks & internal pipe seals attestation

    Instant-locks & internal pipe seals

    Verification no.
    TD50022501
    Standards
    EN 681-1:1996+A1:1998+A2:2002+A3:2005; EN 295-4:2013; EN 10088-2:2024; EN 16397-2:2014
    Technical file
    Construction Products Regulation (EU) No 305/2011
    Valid
    –
  • View the Point-repair pretreatment jacks & RSS spraying system attestation

    Point-repair pretreatment jacks & RSS spraying system

    Verification no.
    TD49732501
    Standards
    EN ISO 12100:2010; EN 60204-1:2018
    Technical file
    Machinery Directive 2006/42/EC
    Valid
    –
  • View the R70 mortar attestation

    R70 mortar

    Verification no.
    TD49742501
    Standards
    EN 998-1:2016
    Technical file
    Construction Products Regulation (EU) No 305/2011
    Valid
    –

Check any verification number on eutest.com.tr

Our SGS-audited supplier profile (report QIP-ASI2531373) is on Made-in-China.com

Logistics

Global logistics by sea, land, air and rail

We ship by the route that fits your project timeline, with orders wrapped, labelled and crated on pallets for export.

  • Sea freight

    FCL and LCL ocean shipping to major ports worldwide.

  • Land freight

    Door-to-door trucking for regional and cross-border delivery.

  • Air freight

    Fast air cargo for urgent or time-sensitive orders.

  • Rail freight

    Cost-effective rail transport for large-volume inland shipments.

Products packed in wooden crates for export
Products packed in wooden crates for export
Products packed in wooden crates for export
Products packed in wooden crates for export

Buyer’s guides

Technical Guides · English

How to Choose a Pipe Repair Packer

How to Choose a Pipe Repair Packer

Record the measured bore, repair length, access and whether flow needs a bypass. Confirm packer fit and working length, then send an enquiry.

Pipe Repair Resin: Pot Life, Setting and Cure Time

Pipe Repair Resin: Pot Life, Setting and Cure Time

Compare Reliance resin pot-life, initial-setting and curing records with their original labels, temperatures and conditions before planning a pipe repair.

Manhole Rehabilitation Equipment: Pumps, Mixers and Spray Heads

Manhole Rehabilitation Equipment: Pumps, Mixers and Spray Heads

Manhole rehabilitation equipment: pumps, mixers and spray heads. Compare worm pumps P60/120 and P90/160 with spray systems RSS-HT and RSS-SP.

FAQ

Frequently asked questions

Short answers to the questions buyers ask most before ordering trenchless point-repair products.

What products does Reliance Trenchless supply?

We supply 11 products in 5 families: instant-lock stainless steel sleeves, internal pipe seals, pipe plugs, repair packers, fiberglass and resin materials, point-repair jacks and mortar sprayer systems. They are made by our manufacturing partners Wenzhou Wantuo, Qingdao Xinya and CNLG.

Can pipes be repaired without digging?

Yes. Our point-repair products are installed from inside the existing pipe through a manhole or access point, so localized defects such as leaking joints, cracks and local damage can be repaired without excavating the street. Whether a repair suits your pipe depends on its diameter, material, condition and the defect, so confirm the selection against the published specifications.

How do I choose the right product size?

Start from the pipe inside diameter, pipe material and the defect or task. Every product page lists dimensions, specifications and brochures, and the pipe size finder on the products page narrows the range. If you are unsure, send us those details with the quantity and we will suggest products for you to confirm.

Are your products CE certified?

EU TEST has issued attestations of conformity for 6 product groups after verifying their technical files against EN standards. These are voluntary technical-file verifications, not Notified Body certificates. Each attestation, its standards and its validity dates are shown in the certificates section of this site.

Do you ship internationally?

Yes. We have supplied customers in 37 countries from Wenzhou, Zhejiang, China. Orders are wrapped, labelled and crated on pallets for export and ship by sea (FCL or LCL), land, air or rail, depending on your destination and timeline.

How do I request a quote?

Use the quote form on the contact page, where only your email is required, or email sales@reliancetrenchless.com, call +86 188 6774 8857 or message us on WhatsApp. Include the pipe diameter, material, defect, quantity and destination so we can reply with the right products.

Tell us about your pipe

Send the pipe diameter, material, defect and quantity. We will suggest products for you to confirm.

  • Measured internal diameter at the defect, not nominal DN alone
  • Pipe material
  • Defect type and length
  • Medium and pressure, if known
  • Destination and documents needed
Step 1 of 4

Pipe inside diameter