Detailed pages on the plumbing components — pipes, fittings, valves, heating and hot-water equipment, insulation and supports. Specs are kept generic; specific figures are looked up in manufacturer data and the applicable standard.
Pipe
Hard/soft copper pipe for water and heating
Copper pipe (Cu) for domestic water and central heating — specified as outer Ø × wall thickness and joined by hard/soft soldering or press fitting. The permitted pressure/temperature depends on the dimension; look it up in the manufacturer's data and the applicable standard.
Flexible cross-linked PE pipe, often in conduit
Cross-linked polyethylene (PEX), flexible and often laid pipe-in-pipe (conduit). For domestic water, underfloor heating and radiator connections using press/compression fittings. Pressure/temperature class and bending radius are looked up in the manufacturer's data.
Black/galvanised threaded steel pipe
Black or galvanised steel pipe specified in DN / inch thread, joined by threading (BSP) or welding. For heating and supply lines; use for gas/drinking water depends on the material and the regulations — verify against the applicable standard.
Polypropylene drainage pipe with socket and rubber ring
Polypropylene drainage pipe (Ø50/Ø75/Ø110) with socket and rubber seal, for internal waste and soil stacks. Fall, dimension and acoustic requirements follow DS 432 — look up the specific requirements.
Fittings & valves
Flame-free cold press-fitting with O-ring
Fitting for cold press-fitting of copper/stainless/PEX with an O-ring seal and a system-specific press profile. Fast, flame-free joining — use only the fitting, press profile and jaws from the same system, following the manufacturer's instructions.
Shut-off valve with full bore
Ball shut-off valve with full bore in the open position, for isolating water/heating circuits. Connection by thread or press fitting; pressure/temperature rating and DN are looked up in the manufacturer's data.
Check valve — flow in one direction only
Check valve that allows flow in one direction only, for backflow prevention. The correct protection type against drinking-water contamination is determined by the fluid category — follow the applicable regulations.
Thermostatic radiator valve with wax sensor
Thermostatic radiator valve with wax sensor for room-temperature control. The presetting/kv value is chosen according to the design flow — look up the manufacturer's kv data.
Beskyttelse af drikkevand efter væskekategori
Sikringsenhed (kontrollerbar kontraventil, rørafbryder m.fl.) der beskytter drikkevandet mod tilbagestrømning. Krævet sikringstype bestemmes af væskekategorien efter DS/EN 1717 (refereret fra DS 439:2024) — vælg type efter forureningsrisiko og gældende regelsæt.
Heating & hot water
Heating and storage of domestic hot water
Vessel for heating and storing domestic hot water, stated in litres and heated via a coil, electricity or a combination. Volume and output are sized to the draw-off pattern; legionella considerations follow current guidance.
Membrane vessel that absorbs the water's expansion
Membrane vessel that absorbs the water's expansion in closed heating systems. Size and pre-charge pressure are dimensioned according to DS 469 and the manufacturer's instructions — use the »Expansion volume« calculator as a starting point.
Wet-running pump for heating/hot-water circuits
Wet-running pump for circulation in heating systems and domestic hot-water circulation, often pressure-controlled/A-rated. Choose the operating point on the pump curve — use the »Pump power« calculator for a power estimate.
Pressure relief against overpressure
Pressure-relief valve that protects the system/vessel against overpressure by venting at a set opening pressure. Statutory pressure protection — the opening pressure and discharge must comply with the applicable rules and the manufacturer's instructions.
Vandbåren varmepumpe til lavtemperaturanlæg
Luft-til-vand varmepumpe der leverer vandbåren varme; effektivitet angives som SCOP (EN 14825). Passer bedst til lavt fremløb (gulvvarme/store radiatorer). Omfattet af Varmepumpepuljen 2026 (fast tilskud 27.000 kr./husstand, Energistyrelsen). Kølemiddelarbejde er certifikatpligtigt.
Gulvvarme & afløb
16/20 mm tværbundet rør med iltspærre til vandbåren gulvvarme
Tværbundet PEX-rør med iltspærre til vandbåren gulvvarme, typisk 16 × 2,0 mm. Vejledende ca. 5 m slange/m² ved c/c 200 mm; vejl. pris ca. 15–16 kr./m (billigvvs.dk/bauhaus.dk, juni 2026 — vejledende). Sløjfelængde og c/c følger DS 469 / EN 1264 og producentdata.
Forindstillelig fordeler til flere gulvvarmekredse
Fordeler i rustfri/messing der samler og forindstiller flere gulvvarmekredse, ofte med flowmålere og termoaktuatorer. Kredse holdes nogenlunde lige lange (16 mm: vejl. maks. ca. 100 m/kreds); maks. differenstryk over fordeler vejl. ca. 20 kPa — slå tal op i producentdata.
Tilbageløbsstop mod opstuvende kloakvand
Højvandslukke der hindrer, at spildevand stuver baglæns op i lavtliggende kælderafløb ved skybrud. Krav og placering følger DS 432:2020 — de skærpede klimakrav gør det oftere påkrævet; type og dimension slås op i gældende norm.
Insulation & mounting
Insulation shells/sleeves for pipes
Insulation shells/sleeves for heating and domestic hot-water pipes that reduce heat loss and prevent condensation. Thickness is chosen according to pipe Ø and requirements; the required insulation thickness follows the Building Regulations — look up the specific requirements.
Supports with the correct span between fixings
Supports for fixing and guiding pipes with room for expansion. The max. span between fixings depends on pipe type/Ø and is looked up in the manufacturer's/installation data for the specific pipe type.