Double-Bowl Laboratory Sink Unit with Drain Board

What is the Double-Bowl Laboratory Sink Unit with Drain Board?

A double-bowl sink unit provides two basins, often with a drain board, so that washing and rinsing can be done in sequence. It is used in glassware washing rooms and high-throughput teaching laboratories.

Overview

Two basins, typically 500 × 400 × 300 mm each, are mounted in a 1500–1800 mm cabinet with a central or end drain board. One basin is used for washing with detergent or soaking, and the other for rinsing with running water. Materials are polypropylene, epoxy resin or stainless steel, and the unit usually includes two gooseneck mixer taps, one pure-water rinse tap and a pegboard for drying glassware. Drainage uses DN50 pipes with a common trap, and an overflow is provided. Cabinets are reinforced for wet loads of up to 150 kg. The design optimizes washing workflow but occupies substantial bench length and needs good drainage capacity and ventilation.

How does it work?

A laboratory sink unit combines a basin, a worktop or drain board, taps, a waste outlet with trap, and often a cabinet beneath. Basins are molded polypropylene, cast epoxy resin or fabricated stainless steel, with depths of 200–350 mm and capacities of 15–40 litres. Taps include gooseneck mixers, swan-neck or pillar types, with optional pure-water, foot-operated or elbow-operated controls. The waste outlet drains through a chemical-resistant trap, typically polypropylene, sized DN40–DN50, with a removable strainer. Units are designed with slopes toward the outlet and a drip groove, and some include neutralization boxes for acid waste or a pegboard for drying glassware. Water supply and waste connections must respect backflow prevention and local plumbing codes.

What are the key features?

• Two 500 × 400 × 300 mm basins for wash and rinse stages
• Central or end drain board for draining glassware
• Two mixer taps plus optional pure-water rinse tap
• Pegboard for drying rack mounting
• DN50 waste with overflow and common trap
• Cabinet reinforced for up to 150 kg wet load

What are the technical specifications?

A typical double-bowl laboratory sink unit with drain board configuration offers overall width of 1500–1800 mm, basin size (each) of 500 × 400 × 300 mm, drain board of 400–600 mm, material of PP / epoxy / stainless 304, taps of 2 mixer + 1 pure-water optional and waste pipe of DN50 with overflow. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Double-Bowl Laboratory Sink Unit with Drain Board is used in glassware washing rooms, high-throughput teaching labs, QC laboratories and biology labs. Across the wider Sink Units class, laboratories also deploy it for glassware washing, hand washing stations and sample preparation.

Which standards and certifications apply?

Relevant standards and methods include SEFA 8 (laboratory grade casework), EN 14056 (laboratory furniture design and installation), EN 13150 (laboratory workbenches, finish tests), GB 24820 (laboratory furniture) and EN 274 (waste fittings for sanitary appliances, reference). Certification candidates for this model are ISO 9001 manufacturing, SEFA 8 test report and WRAS-type water fitting approval for taps; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Plan water supply, waste and isolation valves early, and give sink units access panels for trap cleaning. Install backflow prevention on the water supply, and route waste to a chemical-resistant drain system or neutralization tank where acids or solvents are present. Seal the sink rim to the worktop with silicone to prevent leaks. Do not pour hazardous solvents or heavy metals down the drain, and follow local wastewater regulations. Flush traps daily, clean strainers weekly, and inspect seals and taps every six months. Provide eyewash stations within easy reach of sinks used for chemical work.

How do I select the right Double-Bowl Laboratory Sink Unit with Drain Board?

Select double-bowl sinks where wash and rinse steps must be separated, usually in central glassware rooms or large teaching labs. Plumbing capacity is the critical check. Specify overall width, basin sizes, material, taps, drain board side, pegboard, waste size and any pure-water supply.

How does it compare with other Sink Units variants?

Select the basin material first. Polypropylene suits general chemistry, acids, alkalis and solvents at moderate temperature; epoxy resin suits heavier use and hot liquids; stainless steel suits biology, pharmaceutical and food labs that need frequent disinfection. Then choose size: single-bowl units save space, double-bowl units separate rinsing and soaking, and cup sinks fit fume hoods and small benches. Consider tap type (hands-free for microbiology), pure-water supply, drain board and pegboard requirements, and neutralization of acid waste. Check plumbing connections, hot-water supply and accessibility height. Confirm the unit is compatible with local wastewater discharge rules and the chemicals in use.