Guides

Technical Resources

Evergreen planning material: which inputs to collect, which standards matter and when to request technical validation.

Industrial guide

05
Custom Weldplast industrial tanks made from PE and PP

5 min read

Custom polypropylene tanks — what to send for a quote

Guide for custom PP/PE-HD tanks made to order in any dimension: materials, realistic Weldplast in-house capacity, single or double walls, fittings and the inputs needed for a responsible quote.

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Weldplast ecological septic tanks made from polypropylene

6 min read

Polypropylene three-chamber septic tank vs package plant — how to choose

How to choose between a three-chamber septic tank and a small wastewater treatment plant: population equivalent, discharge, maintenance and SR EN 12566 limits.

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Industrial galvanizing tank made from polypropylene

6 min read

Polypropylene galvanizing tanks — chemical compatibility and quote inputs

Guide to PP/PVDF tanks for galvanizing: acids, alkalis, temperature, custom dimensions, accessories and limits of a chemical-compatibility table.

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Weldplast grease separator for a HoReCa kitchen

6 min read

HoReCa grease separator SR EN 1825 — when you need one and how to size it

Guide for restaurants, canteens and guesthouses: when a grease separator is used, what NS means under SR EN 1825 and what maintenance must be planned.

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Weldplast water tanks for technical applications

5 min read

PEHD fire-water tanks — protected reserve, volumes and fittings

Preliminary guide to PEHD fire-water tanks: protected fire reserve, volumes, fittings, pumps and limits of P118/NP 086 norms.

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Aquaculture guide

03
HDPE floating cages for a fish farm

5 min read

Floating fish cages — price and sizing with clear inputs

What affects the price of a floating cage: diameter, HDPE rings, nets, buoyancy, species, biomass and maintenance access.

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HDPE floating pontoon on water

5 min read

HDPE floating pontoons — bearing capacity and ANR checks

Guide to HDPE floating pontoons: floats, bearing capacity, modules, loads and what to verify with ANR/harbour authority for navigable waters.

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PP/PE-HD fish tanks in an aquaculture hall

5 min read

Polypropylene fish tanks for RAS — sizing inputs

Guide to PP/PE-HD tanks in RAS systems: materials, custom dimensions, flow, species, filtration and what to send for a quote.

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Separator guide

01
Weldplast hydrocarbon separator with coalescing filter

6 min read

EN 858 hydrocarbon separator — how to choose one (guide + sizing checklist)

A short guide for choosing a hydrocarbon separator for car washes, parking areas, workshops and fuel stations: EN 858 classes, flow inputs, NS sizing and documents to request.

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Welding guide

01
Extrusion welding for Weldplast plastic materials

6 min read

HDPE geomembrane welding — procedures and site tests

Guide to HDPE geomembrane welding: extrusion vs hot wedge, double seams, air-pressure tests, vacuum box tests and DVS document limits.

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