Drainage Channels with Central Siphon

Drainage Channels with Central Siphon — the central siphon solution is practically ideal for longer drainage channels, as it ensures even water flow from both ends of the channel towards a single central outlet point; this design reduces sediment accumulation at the channel ends and facilitates maintenance; suitable for both new constructions and renovations in professional kitchen and production facility floors.

Central siphon construction and operating principle

Drainage Channels with Central Siphon — the central siphon features a mechanism that prevents sewer gases from entering the room while ensuring water drainage. Water seal effect — water is constantly present in the U-shaped part of the siphon; this physical barrier prevents odours from entering from the sewer; this principle is identical to a household sink siphon but is designed for intensive commercial use. Advantage of central positioning — when the siphon is located in the middle of the channel, water flows from both ends with equal slope towards the centre; particularly effective for channels over 600–800 mm in length, where an end siphon would create uneven flow. Outlet connection — the outlet from the central siphon is connected to the sewer system with a standard pipe (DN50 or DN70); see Drainage Channels. Siphon cleaning access — high-quality models have removable parts for cleaning; regular cleaning is necessary to maintain effective operation and hygiene.

Material and dimensions

Drainage Channels with Central Siphon — the mandatory material for professional kitchen drainage channels is stainless steel AISI 304 or 316. Stainless steel AISI 304 vs 316 — AISI 304 is the standard for most kitchen applications; AISI 316 is more resistant to aggressive chemical cleaning agents and saltwater; AISI 316 is recommended for seafood processing or particularly aggressive environments. Channel width and depth — standard widths: 100 mm and 150 mm; deeper channels accommodate larger water volumes and are suitable for high-flow conditions; wider channels facilitate cleaning. Channel length — channels are available in 500–2000 mm lengths; longer channels can be connected; see Drainage Channels with Side Siphon. Grate or cover — the channel surface is covered with a stainless steel grate or perforated cover.

HACCP requirements for floor drainage in professional kitchens

Drainage Channels with Central Siphon — a floor drainage system is a mandatory part of the HACCP plan in any professional kitchen. Water drainage from the floor — professional kitchen floors are washed with water at least once a day; effective drainage ensures that water drains quickly without forming puddles. Slope towards the channel — the floor must have a slight slope (1–2%) towards the drainage channel; without a slope, water stagnates and causes bacteriological contamination. Siphon cleaning frequency — the siphon should be cleaned at least once a week; food residues and greasy deposits accumulate in the siphon and can cause odours and bacterial growth if not regularly maintained; see One-Piece Floor Drains. Isolation from the sewer — a functioning siphon must always contain water; in areas where the channel is not used for extended periods, the siphon may dry out — it should be refilled with water.

Usage scenarios for Drainage Channels with Central Siphon in HoReCa

Drainage Channels with Central Siphon — central siphon channels are the most popular solution for large floor washing zones and long kitchen sections. Restaurant washing zone — a long washing zone (1200–2000 mm) with high water flow from dishwashing machines and manual washing; the central siphon ensures even flow from both ends. Hotel kitchen floor washing system — in large hotel kitchens, a drainage channel with a central siphon is installed along a row of cooking equipment; water from floor cleaning drains quickly. Food production facility or workshop — in production areas with regular floor washing using pressure water, central siphon channels ensure maximum water drainage.

Frequently asked questions

What is the difference between a central and side siphon in a drainage channel? Drainage Channels with Central Siphon — a central siphon ensures water flow from both ends of the channel towards the centre; a side siphon is located at the end of the channel and water flows in one direction; a central siphon is more effective for longer channels, as it provides more even drainage; see Drainage Channels with Side Siphon.

Can drainage channels be used on outdoor terraces or courtyards? Drainage Channels with Central Siphon — stainless steel drainage channels are also suitable for outdoor terraces and courtyards where high-quality rainwater drainage is required; for outdoor use, AISI 316 stainless steel is recommended; contact BHS for precise product selection; see Drainage Channels.

Why choose BHS?

BHS – Baltic HoReCa Solutions supplies professional equipment for restaurants, cafés, hotels and canteens: more than 20,000 products from many manufacturers. Our specialists help you choose the right equipment and spare parts for your kitchen or bar.

Delivery

We deliver across the European Union. Delivery time and cost depend on the order volume and destination — contact the BHS team for an exact price and lead time.