RK Infra

What RK Infra does

RK Infra GmbH is an Austria-based manufacturer of pre-insulated pipe systems for district heating, district cooling, sanitary, industrial, and renewable energy applications, headquartered in St. Valentin and operating as a member of the international Radius-Systems Group. The company has more than 50 years of experience and offers two main product lines: KMR rigid steel pipe systems (Radius P, Radius K, Thermosand bedding) and FLEX flexible pipe systems (HeatFlex, PEX Sanitary, FibreFlex, FibreFlex Pro, and FibreFlex Pro 16). Core technology centers on cyclopentane-based PUR foam insulation with thermal conductivity of 0.021 W/mK (TGM-certified), aramid fibre-reinforced PE-Xa service pipes operating up to 115°C/16 bar, a patented inductive welding joint system, and integrated leak detection via sensor cables.

The company monetizes primarily through hardware sales of pre-insulated pipe systems and accessories (press/clamp connectors, factory-pre-insulated steel fittings, CLICK half-shell joint insulation), supplemented by technical services such as tube-static calculations, design dimensioning, heat-loss calculations, on-site support, installation training (with personally issued mounting passes), and monitoring/maintenance. Go-to-market combines direct enterprise sales for large infrastructure projects with an international channel partner network of more than 15 named distributors across 13+ European countries, with additional reach into North America, New Zealand, Japan, and Korea via Radius Group's broader footprint. Quality is independently validated through ISO 9001, ISO 14001, ISO 45001, and OFI CERT ZG 200-1,2 certifications.

Name

RK Infra

Legal name

RK Infra GmbH

Website

https://rkinfra.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

51–100 employees

Short description

RK Infra GmbH is an Austria-based manufacturer of pre-insulated rigid and flexible pipe systems for district heating, cooling, sanitary, industrial, and renewable energy applications, serving municipal utilities and contractors through direct sales and a pan-European distributor network as part of the Radius Group.

Ownership category

akta.pro rank

Product category

Industrial Pipe Manufacturing

NAICS

Plastics Pipe and Pipe Fitting Manufacturing (326122), Other Metal Valve and Pipe Fitting Manufacturing (332919)

SIC

Steel Pipe & Tubes (3317)

akta.pro primary industry

Mechanical Piping & Pipefitting (Process/Utility Piping, Supports, Valves) (EUAEAFAD)

akta.pro secondary industry

Plumbing Valves & Controls (Shutoff, Mixing, Backflow) (IMADALAB)

Keywords

• Pre-insulated pipes
• District heating systems
• Industrial pipe manufacturing
• Polymer pipe systems
• Underground piping networks

Headquarters

HQ city

Sankt Valentin

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Technology or R&D

Revenue model

1. Pre-insulated Pipe Product Sales: Revenue is generated from the sale of pre-insulated pipe systems including rigid (Radius P, Radius K, Thermosand) and flexible products (HeatFlex, FibreFlex, FibreFlex Pro, FibreFlex Pro 16, PEX Sanitary), along with accessories such as press/clamp connectors, pre-insulated steel fittings, and joint systems.
2. Technical and Engineering Services: Services including technical consultation and engineering (tube-static calculations, design dimensioning, heat loss calculations), on-site support, construction meeting participation, and production of additional components.
3. Customer Training: Installation training services offered to customers, conducted in workshop, at customer site, or on construction site, with personally issued mounting passes for authorized installers.
4. Monitoring and Maintenance: Pipe network monitoring and maintenance services including leak detection system operation and precision localization of leaks, delivered by professional assembly teams for on-site insulation work.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

RK Infra manufactures pre-insulated pipe systems primarily used in district heating and cooling distribution networks. The company is headquartered in St. Valentin, Austria and operates as a subsidiary of the Radius-Systems Group, producing insulated piping infrastructure for utility and industrial customers.

Product overview

RK Infra is an Austria-based manufacturer and member of the international Radius-Systems Group with more than 50 years of experience in pre-insulated pipe systems. The company offers two main product lines: KMR (rigid pipes) and FLEX (flexible pipes). The KMR line includes Radius P (pre-insulated rigid steel pipes with PUR insulation and PE-HD jacket), Radius K (custom special pipe solutions), and Thermosand (thermal sand bedding material). The FLEX line includes HeatFlex (flexible PE-Xa pipes with PUR insulation), PEX Sanitary (for sanitary applications), FibreFlex (fiber-reinforced flexible pipes rated for 10 bar/80°C), FibreFlex Pro (115°C/10 bar), and FibreFlex Pro 16 (115°C/16 bar), all featuring PUR insulation with thermal conductivity as low as 0.021 W/mK. Accessories include fittings, connectors, joint systems, and half-shells. Pipes are designed for district heating, district cooling, and industrial applications with service lives exceeding 50 years.

Differentiator

Problem solved

Functional benefit

Products and services

• Pre-insulated pipes Pre-insulated pipe systems designed for district heating and cooling distribution networks, supplied to utility operators, municipalities, and industrial customers across European markets.

Quantifiable outcome

• Up to 40% faster installation with fitting connection system
• +8 more outcomes

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Perma-Pipe International: US-headquartered manufacturer of pre-insulated piping systems for district heating/cooling, oil & gas, and industrial applications. Directly comparable product category (pre-insulated pipe systems) with similar large-infrastructure customer base.
• Logstor: Danish-based global leader in pre-insulated pipe systems for district heating and cooling. Directly comparable to RK Infra across both rigid steel and flexible pipe systems serving municipal heating utilities across Europe.
• Brugg Pipes: Swiss-based manufacturer of pre-insulated pipe systems for district heating and cooling. Overlaps with RK Infra in energy-efficient pipe technology and serves similar municipal and industrial customers across Europe.
• Thermaflex: Netherlands-based manufacturer of flexible pre-insulated pipe systems for district heating and cooling. Closest direct comparable to RK Infra's FLEX product line (HeatFlex/FibreFlex) using flexible PE service pipe technology.
• Isoplus: European manufacturer of pre-insulated pipe systems for district heating networks with strong presence in DACH region. Competes head-to-head with RK Infra in KMR rigid steel pipe systems and casing joints.

Broad incumbents

• GF Piping Systems (Georg Fischer): Swiss-based manufacturer of plastic and metal piping systems for utilities, industry, and building technology. Wider portfolio than RK Infra but overlaps on industrial and energy infrastructure pipe/fitting products.
• Uponor: Finnish-listed provider of piping systems for plumbing, heating, and cooling. Comparable through PEX-based and pre-insulated pipe products serving residential, commercial, and district customers.
• Pipelife (Wienerberger): Large European plastic pipe manufacturer within the Wienerberger group. Overlaps with RK Infra on plastic pipe/fittings for utilities and is also listed as an RK Infra channel partner (Croatia), making it both peer and channel ecosystem participant.
• Fränkische Rohrwerke: German manufacturer of plastic pipe systems for drainage, building services, and renewable heating applications. Adjacent to RK Infra in polymer-based pipe technology and energy transition infrastructure use cases.
• Rehau Industry: Germany-based polymer solutions provider with building solutions and industrial piping. Addresses comparable use cases (heating/cooling distribution, plumbing, district energy) at larger scale across broader geographies.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/100094297595658
• LinkedInlinkedin.com/company/radiuskelit

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RK Infra