Material for drinking water supply for the Weddel-Lehre water association

Delivery period 01.04.2022 to 31.03.2023 with optional extension for another delivery year (01.04.2023 to 31.03.2024)

Lot 1 PE pipe

Lot 2 PE flange fittings and fittings

Lot 3 Fittings and fittings BAIO

Lot 4 TW house connection material

Lot 5 PE welding fittings

For a detailed description of the lots, please refer to the service description.

The bidder can bid for one lot, several lots or all lots.

pressure pipe with dimensionally integrated protective layers made of PE 100-RC in accordance with

PAS 1075 design

Drinking water pipes with protective properties according to DVGW worksheet GW 335 A2, according to DIN

EN 12201, color blue. Supplied in 12 m lengths The following marking must be printed on the pipes: DN, PN, dimensions, date of manufacture (day, month, year), quality mark, DVGW approval. The tubes are to be delivered on both sides with a sealing cap to prevent contamination.

And other materials

Swap slider

Product: Hawle (Best. No. 411-00) or equivalent

Soft-sealing slider with tensile loose flange on both sides according to EN 1092-2, maintenance-free spindle sealing by means of O-rings and lip seal, low-friction bearing of the spindle on plastic sliding discs, DN 50 - DN 200: round thread adapter on the upper part for pin-free mounting of the installation set,

DN 250 - DN 600: pin hole in the spindle for connecting the built-in fittings, wedge guide made of wear-resistant plastic with high sliding properties ensure low wear and minimal closing torques, PE edge protection protects valves during storage and transport, test bases:

EN 1074-1, EN 1074-2, and 12266-1, overall length: basic series 15 according to DIN EN 558-1 Material: Housing: GJS-400, corrosion protection through epoxy resin powder coating inside and outside in accordance with quality assurance RAL-GZ 662 of the Quality Assurance Association for Heavy Corrosion Protection — GSK, taking into account

DIN 3476 (P) and DIN 30677-2 (layer thickness: min. 0.25 mm, absence of pores at 3 kV, adhesion inside and outside at least 12 N/mm2 after storage in hot water, proof of suitability for drinking water, external monitoring by a neutral test institute). Spindle: stainless steel.Key nut: brass.Wedge: GJS-400, inside and outside

EPDM in accordance with DVGW W 270 and KTW.

Medium: drinking water

Max working pressure: PN 10/16.

And other materials

Dirt and twist protection for BAIO spigot ends

Product: Hawle (Order. No. 490-05) or equivalent

Anti-twist lock for BAIO spigot-end/socket connection, for securing fittings (underfloor hydrants, ventilation and ventilation

fittings) and shaped pieces in vertical insertion against inadvertent unlocking, anti-twist protection with four retaining lugs,

including rubber sleeve for dirt repellency.

Material: Anti-twist: GJS-500, corrosion protection by epoxy resin powder coating inside and out according to

Quality assurance RAL-GZ 662 of the Quality Association for Heavy Corrosion Protection GSK, taking into account DIN 3476 (P)

and DIN 30677-2 (layer thickness: min. 0.25 mm, porosity at 3 kV, adhesion inside and outside at least 12 N/mm² after hot water

storage, proof of drinking water suitability, external monitoring by a neutral testing institute)

Rubber sleeve: NBR

And other materials

Water meter fittings system with angled seat valve and KSR valve with backflow preventer

For horizontal or vertical water meter installation, suitable for cold drinking water in accordance with DIN 2000 to PN 10.

Water meter system completely pre-assembled into assemblies, sealed and subjected to a leak test DIN ISO 2859, DIN 3230 and packed in cardboard as a unit. The manufacturer is certified by DVGW in accordance with DIN EN ISO 9001:2015.

To comply with the drinking water ordinance, brass material in contact with medium, according to the list of metal materials suitable for drinking water hygiene by the Federal Environment Agency. Elastomers and plastics in accordance with the elastomer and KTW guidelines of the Federal Environment Agency, and in accordance with DVGW worksheet W270.

Consisting of:

Angle seat valve, DIN-DVGW according to DIN EN 1213 and W 570, made of pressed brass, with upper part in one-piece construction without loose parts, drive untouched by the medium with double feed, with double O-ring seal and handwheel.

Inlet with female thread for the EWE O-ring system, outlet with union nut suitable for the water meter, with sealing hole, with retaining collar for a tight fit of the water meter seal and with stainless steel rectangular ring, with centring lock ring for

the water meter bracket and with water meter seal. Tap without draining.

Water meter bracket made of A2 stainless steel, minimum thickness 2.5 mm, with open, adjustable support arms 3 mm thick, adjustability of the support arms at least 40 mm, min. 95 mm, fold outwards, with cap nuts, with T-slots.

KSR valve, combined angle seat valve/backflow preventer, DIN-DVGW to DIN EN 1213, DIN EN 13959 and W 570, made of pressed brass, with one-piece upper part without loose parts, drive with double feed untouched by the medium, with double O-ring seal, brass tappet with additional Teflon coating, internal spring made of A4 stainless steel and relief hole. With handwheel, test screw and integrated drain valve located downwards.

Input with positive, multi-start thread length compensation, with double O-ring seal, flow-optimized. Union nut with internal octagonal and multiple functions, also for adjusting the length compensation. Retaining strap for a tight fit of the water meter seal, with centring lock ring and with water meter seal.

Output with internal thread for the EWE O-ring system.

All screw elements of the valve with uniform wrench size according to DIN.

With mounting kit consisting of 2 PVC dowels SX 10, stainless steel hexagonal screw DIN 571.8 x 70 mm and washer 25/8.5/1.5 mm

And other materials

Electrowelded fittings and moulded parts

made of PE-100, pressure level SDR 11. Electric welded fittings are suitable for welding pipes and fittings made of PE 80, PE 100, PE 100 RC (DIN 8074/75, EN 12201-2

EN 1555-2) and pipes made of PE-Xa (DVGW 335-A3, DIN 16892/93), PE-LD to DIN 8072/73. Weldable with any commercially available socket welder. DVGW approval.

And other materials