Industrial Floor Drains

Industrial Floor Drains in Stainless Steel

An industrial floor drain collects water and process wastewater at a single point in the floor. It is ideal where liquid appears locally — at washing stations, individual machines, technical rooms and staff facilities. Where water flows across the entire surface, a drainage channel is the better solution; both systems often operate side by side in the same hall.

B&K GROUP floor drains are manufactured from stainless steel grades V2A (1.4301) and V4A (1.4571). Smooth surfaces and tight joints simplify cleaning, which is essential in facilities with high hygiene requirements.

One-Piece or Two-Piece Floor Drain?

The difference lies in height adjustment.

• One-piece — single-body construction without height adjustment. The installation level is set during fitting, making it suitable for new floors where layer thicknesses are known from the design.
• Two-piece — standard height adjustment 50–160 mm. Allows the grate to be aligned flush with the finished floor regardless of its final thickness.

Vertical or Horizontal Outlet

The second parameter depends on the ceiling construction and pipe routing. A vertical outlet directs flow downward and requires space beneath the floor. A horizontal outlet discharges sideways — used in low-build situations and thin floor layers where a vertical connection is not possible.

Overview of Floor Drains

One-Piece Floor Drains

• BK_KRD_E — square, vertical outlet, sizes 200×200, 250×250, 300×300 and 400×400 mm
• BK_KRB_E — square, horizontal outlet, sizes 200×200, 250×250, 300×300 and 400×400 mm
• BK_KRDO_E — round or square, vertical outlet, sizes 210 mm and 210×210 mm
• BK_KRBO_E — round or square, horizontal outlet, sizes 210 and 300 mm

Two-Piece Floor Drains with Height Adjustment

• BK_KRD_Z — square, vertical outlet, 200×200 to 400×400 mm, height adjustment 50–160 mm
• BK_KRB_Z — square, horizontal outlet, 200×200 to 400×400 mm, height adjustment 50–160 mm
• BK_KRDO_Z — round or square, vertical outlet, 210 and 300 mm, height adjustment 50–160 mm
• BK_KROB_Z — round or square, horizontal outlet, 210 and 300 mm, height adjustment 50–160 mm

Body Dimensions and Outlet Diameters

Standard square bodies measure 200×200, 250×250, 300×300 and 400×400 mm; round bodies are 210 and 300 mm. Outlets are available in DN 75, DN 110, DN 160 and DN 200. Smaller bodies accommodate DN 75 and DN 110, while larger bodies accommodate DN 110, DN 160 and DN 200.

Non-standard dimensions are produced to order according to the client’s technical documentation.

V2A or V4A — Choosing the Stainless Steel Grade

V2A (1.4301) is suitable for most industrial applications involving moisture and standard cleaning agents.

V4A (1.4571) offers higher corrosion resistance and is recommended for aggressive environments such as car wash facilities.

Load Class

Floor drains are available in load classes H1.5, K3, L15, R50, M125 and N250. The class is selected according to the point load at the installation location, not the total vehicle weight. We assist with selection during quotation.

Trap and Sediment Basket

Each drain is supplied with a removable trap and sediment basket. The trap prevents odours from entering the room; the basket captures sand and debris before they reach the drainage system.

Both components can be removed without dismantling the drain, simplifying routine maintenance — especially important where daily cleaning is required.

Inspection Chambers as System Complements

We also supply inspection chambers that provide service access to the drainage installation:

• BK_RC_E — one-piece inspection chamber, sizes 200×200 to 400×400 mm
• BK_RC_Z — two-piece inspection chamber, six sizes from 150×150 to 400×400 mm, height adjustment 50–160 mm

Where Stainless Steel Floor Drains Are Used

Stainless steel floor drains are installed in food and beverage production plants, pharmaceutical facilities and general industrial engineering. They function both as standalone point drainage and as elements integrated with linear channels. Three factors are decisive: steel grade, correctly selected load class and ease of cleaning.

Floor drains form part of a wider system — the complete drainage range is available in the drainage systems section.