Trenchless pipeline repair supplies from the Reliance Trenchless range: inflatable plugs, repair packers, mechanical sleeves, joint seals, resin systems and rehabilitation equipment. Match the repair method and installation tool before comparing nominal pipe sizes.
What the published manufacturing scope means for a buyer.
Zhejiang Reliance Trading Co Ltd is the brand operations and export entity submitted for this Reliance Trenchless profile. RTT’s website describes a collaboration between Qingdao Xinya Environmental Technology, Wenzhou Wantuo Pipeline Equipment and GNLC Construction Machinery. Their published specialisms divide the range between plugs and resin repair, mechanical sealing components, and mortar spraying equipment. The website lists offices in Wenzhou and Qingdao; these addresses are not presented here as independently inspected factories. Buyers should establish the supplying manufacturer and contracting entity for the selected product family. [1] [2]
The About page attributes resin, high-pressure plugs and repair packers to Xinya; internal seals and instant-lock patches to Wantuo; and mortar sprayer machines to GNLC. This gives buyers a more useful supplier map than treating the entire range as one production line. Ask which partner supplies the ordered assembly and who issues its inspection documents. [1]
Instant-Lock sleeves, resin-impregnated fiberglass and internal joint seals address different repair tasks. Packers and hydraulic installation tools are separate equipment. A quotation should identify the installed repair material, its installation assembly and the accessories to be retained for subsequent work. [3]
CNFX synthesis of the company’s published information.
RTT-published supply families. Manufacturer roles follow the company’s About page; no claim is made that the profile company produces every item itself.
Multi-size MS plugs and MSBP bypass versions are listed separately. Single-size SS plugs have nominal-size rows, while TP testing plugs use their own model table. Specify the pipe fit, bypass requirement and required back pressure; the pressure inside an inflatable plug is not the same column as the pressure it can retain. [5]
RP packers position localized repairs in the pipe. Published configurations differ in pipe range, deflated length, wheels and bypass arrangement. The RP-L 200–300 entry is 900 mm long in one online table and 860 mm in the page’s brochure-reference table, so the model name alone does not settle the delivered dimensions. [4]
Small and large sleeves combine stainless steel with an EPDM jacket. The small-sleeve page lists matching packers, while the large-sleeve page specifies installation tools. Do not carry the small-sleeve inflation procedure over to a large sleeve; request the procedure for the selected assembly. [6]
These assemblies combine stainless steel rings, a rubber element and installation accessories to seal a joint between pipe sections. The page shows slot-type and screw-type arrangements and multiple rubber widths. Identify the joint geometry and fluid service before specifying the ring, elastomer and hydraulic installation equipment. [8]
The material system is presented for localized, resin-impregnated fiberglass repairs. The online table specifies an A:B volume ratio of 1:2 and separates times measured at 25°C from seasonal-formulation figures without a stated test temperature. The quotation needs a formulation and site-temperature basis, not just a generic resin kit name. [9]
The range includes up-down and duck-billed jacks for defect preparation, plus worm pumps, mixers and spraying heads for mortar rehabilitation. These are separate equipment groups: the jack’s hydraulic duty does not specify the mortar system’s delivery or power requirements. [3]
The reviewed website supports a product-family supply map. It does not establish a single integrated plant, production capacity or a common inspection plan for all products.
RTT names Qingdao Xinya for this part of the range. The plug page describes rubber/nylon construction and vulcanization, while the packer page describes an elastic fiber structure with metal end assemblies. These are company descriptions, not evidence of a CNFX factory audit. [1]
RTT names Wenzhou Wantuo for internal pipe seals and instant-lock patches. Obtain the selected stainless grade, elastomer specification, fit drawing and matching installation equipment as one coordinated purchase package. [1]
RTT names GNLC for mortar sprayer machines. The product page separates P60/120 and P90/160 pumps from RSS-HT and RSS-SP spraying systems, with different drive and electrical-supply tables. Agree the component list and site supply before accepting a system quotation. [11]
Inspection, testing and project documentation.
The MS 100–200 tables on the product page disagree: the catalogue table lists 0.8 bar maximum back pressure and 3 kg, while the brochure-reference table lists 1 bar and 1.5 kg. Both list 2 bar inflation pressure. Those are source-specific figures, not interchangeable ratings; request a dated specification and the applicable operating instructions for the delivered model. [5]
For a DN150 small sleeve, one table gives a 140–152 mm pipe-fit range and the brochure-reference table gives 120–150 mm. Measure the host pipe and have Reliance confirm the chosen sleeve and packer together. Avoid combining a fit range from one reference with an installation designation from another. [6]
The jack page includes HDPE among suitable materials but also excludes PE. The page itself flags this inconsistency. Send the actual pipe material, wall construction and defect condition for a written suitability decision; do not interpret the published list as blanket compatibility. [10]
The Quality page directs buyers to specifications and project-specific document requests. The reviewed material does not establish certificate holders, valid listing numbers or a common third-party approval for the range. Define material records, dimensional checks, model identification and any project-required test evidence in the purchase specification. [14]
These are applications in RTT’s published product navigation, not independently verified customer projects.
Compare the dedicated plug families. Send measured pipe dimensions and the required pressure conditions, and specify whether a bypass connection or a testing configuration is needed. [3]
Compare a mechanical sleeve, a resin/fiberglass patch and an internal joint seal against the defect geometry. Include repair length, access and installation-tool requirements so the supplier can propose a matched package. [3]
Jacks are listed for preparing structural defects; the mortar system is listed for inspection wells, pipelines, culverts and underground concrete work. These tasks require different equipment and acceptance requirements. [3]
CNFX procurement assessment.
The Reliance range is relevant when a buyer needs to coordinate trenchless repair materials and installation equipment across several product families. The practical purchasing step is to agree one model-specific document set and one responsible supplying entity for each assembly. Website tables contain differences that remain unresolved in this profile; no universal pressure rating, service life, drinking-water approval or independently verified production capacity is implied.
Website research · 2026-10-09
Prepared from Reliance Trenchless Technology’s English website. Capability descriptions and application information are company-published; CNFX’s project-fit assessment is editorial analysis. Company claimed indicates profile management, not quality certification. Source methodology.
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