Utilities

The quality of our drinking water is a matter that concerns us all. To prevent the pollution of drinking water it is essential for appliances (such as washing machines and dishwaters) to have internal backflow protection.  With the Kiwa Domes...

The products are intended to be used in in hot water installations with a working pressure of maximum.1 MPa (10 bar) and a water temperature of maximum 90 °C.

The products according BRL K536 G are applicable for piping systems distribution systems for hot and cold drinking water at a design (working) overpressure of 8 or 10 bar according the temperature profile table 1.

Deze BRL is per 1 maart 2019 ingetrokken en ondergebracht in BRL-K767.

The shower hoses may be used in tap water installations with a maximum working pressure of 1000 kPa. The recommended limits for correct operation are a dynamic pressure between 100 kPa and 500 kPa and a water temperature of maximum 65°C. Occasiona...

Self-closing gas valves AR 168

This approval requirement describes the requirements with regard to flexible hose assemblies for use in installations for natural gas with a pressure of no more than 200 mbar in accordance with the NPR 3378-11 Code of Practice

This approval requirement specify the requirements for fusion fittings made of polyethylene (PE) as well as of mechanical fittings for use in plastic piping systems for the supply of gaseous fuels of the 2nd and 3rd family according to EN 437 with a maximum operating pressure of 10 bar at a reference temperature of 20°C. The operating temperature is between -20 ˚C and 40 ˚C.

The products are intended to be used as gas pressure regulators, gas leak protectors and gas pressure regulators combined with gas leak protectors for domestic installations with a capacity up to 10 m3 and an inlet pressure (MOPu) up to 200 mbar a...

Polyethylene (PE) valves for plastic piping systems for the supply of gaseous fuels AR 136

The products are intended to be used for the transport of drinking water and a working pressure of 1MPa (1,000 kPa), with a water temperature up to 65˚C and a maximum water temperature up to 90˚C for a period of maximum 1 hour.

The objective of this guideline is to guarantee the drinking water quality by specific relevant additional testing and criteria on the barrier properties of the piping system for an operation period of 50 years in polluted soil.

The independent investigation of incidents enables them to be used objectively as lessons to be learnt for the future. By learning from incidents, the correct measures can be taken to reduce these. For gas network operators in the Netherlands, Kiwa Technology provides a call-out service that can be reached 24/7.

IRENE Pro is more than a gas network calculation program. It is an analysis tool for designing gas networks, performing network calculations and determining the level of risk or delivery reliability.

The resistance against permeation of gases and water through pipe walls and other separation components such as films, is for many practical applications a very important property. In this area, Kiwa Technology has gained vast knowledge and experience.

Replacement and maintenance strategies - This is a costly and time-consuming operation, which means it is important to make clear choices about which sections it would be best to replace within which period of time. Kiwa Technology can advise you.

ISO 50001 Energy Management system certification with Kiwa: conserve resources, save money and mitigate climate change.

The products are intended to be used for underground piping systems and its components made from glass-reinforced thermosetting plastics (GRP) based on unsaturated polyester resin (UP) intended to be used for water supply (drinking or raw), with or without pressure.

Plastic corrugated protection pipe AR 211

We all like a warm and comfortable house. Especially in wintertime. And of course your clients must rely on the system that provides that warmth. With your piping system you can qualify for the KOMO® product certificate for plastics piping systems...