Laboratory Sink and Faucet: Selection and Installation Guide

Laboratory Sinks and Faucets

Laboratory sinks and faucets are essential fixtures in any laboratory facility. Selecting the right materials and types ensures durability, chemical resistance, and compliance with laboratory safety standards.

Laboratory Sink Materials

Stainless Steel Sinks

Grades:
- 304 stainless: General purpose
- 316 stainless: Corrosive environments

Properties:
- Durability: Excellent
- Chemical resistance: Very good
- Cleanability: Excellent
- Heat resistance: Excellent

Standard Gauges:
- 18 gauge: Standard use
- 16 gauge: Heavy duty
- 14 gauge: Industrial use

Best For: General laboratories, cleanrooms

Epoxy Resin Sinks

Properties:
- Chemical resistance: Outstanding
- Thermal resistance: Up to 200°C
- Durability: Excellent
- Non-porous: Yes

Colors:
- Black (standard)
- Gray, white, blue (some manufacturers)

Best For: Chemistry labs, harsh chemicals

Polypropylene Sinks

Properties:
- Chemical resistance: Excellent to acids
- Cost: Lower
- Weight: Light
- Temperature: Limited to 130°C

Best For: Acid handling areas, educational labs

Ceramic Sinks

Properties:
- Aesthetic appeal
- Easy cleaning
- Chemical resistance: Good
- Scratch resistance: Very good

Best For: Educational display areas, teaching labs

Sink Types and Configurations

Deep Basin Sinks

Features:
- Basin depth: 10-12 inches
- Large capacity
- Reduced splashing

Applications:
- Glassware washing
- Large equipment cleaning
- Waste disposal

Handwashing Sinks

Requirements:
- ADA compliant when required
- Size: Minimum 16" x 16"
- Mounting height: 34" (ADA)

Features:
- Gooseneck faucet
- Soap dispenser
- Paper towel dispenser nearby

Specialty Sinks

Types:
- Dip sink: Small, for small items
- Plunge sink: Deep, for large items
- Evaporating sink: With heating
- Steam sink: With steam jacket

Laboratory Faucet Types

Standard Lab Faucet

Features:
- Double serrated nozzle
- 1/4 turn or 1/2 turn operation
- Vacuum breaker (backflow preventer)
- Ceramic disc or compression valve

Options:
- Mounting: Deck or wall
- Centers: 4" or 8"
- Finishes: Chrome, epoxy-coated

Gooseneck Faucet

Uses:
- Handwashing
- Filling large containers
- Glassware rinsing

Features:
- High arc design
- Various reach options
- Swivel or rigid

Sizes:
- Short: 6-8"
- Standard: 10-12"
- Tall: 14-16"

Serum Faucet (Anti-Siphon)

Features:
- Built-in vacuum breaker
- Angled downward at rest
- Prevents backflow contamination

Required For:
- Aspirator service
- Hoses and tubing
- Air/vacuum service

Emergency Safety Faucet

Features:
- Foot or knee operated
- Hands-free operation
- Emergency eyewash built-in
- Deluge head for drench

Applications:
- Chemical handling areas
- Emergency response
- High-hazard locations

Valve Types

Ceramic Disc Valves

Operation:
- Two ceramic discs
- 90° turn for on/off
- Precision seating

Advantages:
- Long life (500,000 cycles)
- Drip-free
- Quick operation
- Easy repair

Best For: High-use applications

Compression Valves

Operation:
- Rubber washers
- Threaded stem
- Standard on/off

Advantages:
- Simple design
- Easy to repair
- Lower cost

Disadvantages:
- Washer replacement needed
- May drip over time

Best For: Infrequent use

Installation Considerations

Mounting Options

Deck Mount:
- Installed on benchtop
- Requires proper mounting holes
- Easier access for maintenance

Wall Mount:
- Installed on wall above sink
- Saves bench space
- Requires blocking in wall

Backflow Prevention

Required Devices:
- Vacuum breakers: Hose connections
- Check valves: Inline protection
- Air gaps: Physical separation

Code Requirements:
- ASSE 1001 (hose connection)
- ASSE 1011 (hose end vacuum breaker)
- Local plumbing codes

Maintenance Tips

Daily Care

- Rinse after each use
- Remove standing water
- Clean aerators regularly
- Check for leaks

Preventive Maintenance

Monthly:
- Inspect washers and seals
- Check vacuum breakers
- Clean aerators
- Test for leaks

Annually:
- Replace washers (compression valves)
- Inspect ceramic discs
- Check mounting security
- Verify backflow preventers

Conclusion

Laboratory sinks and faucets must be selected carefully for chemical resistance, durability, and safety compliance. Proper installation and maintenance ensures long service life and reliable performance.