Marquest Scientific LG-DD-R3 Deck-Mount Lab Faucet: Engineered for Ultra-Pure Water and Chemical Dispensing Applications

The LG-DD-R3 is a specific configuration of Marquest Scientific's Deck-Mounted Lab Faucets, designed for point-of-use ultra-pure water (UPW) and chemical dispensing applications in laboratory environments. This model features a Duraline control valve, 3/8" female NPT Inlet x outlet, a removable serrated barb tip (leaving a 1/4" female NPT outlet when removed), and a right handle position. The faucet is constructed from high purity PVDF, ensuring compatibility with high purity liquids such as Type I, II Deionized, RO, Ultra Filtered Water, and certain corrosive chemicals.

Duraline Control Valve  The LG-DD-R3 is equipped with the Duraline control valve, located at the base of the gooseneck faucet, offering precise control of ultra-pure water and chemical flow. The zero dead leg design of the control valve ensures that there are no crevices other than the flow path, minimizing the risk of bacterial growth and maintaining the purity of the dispensed water. Key features of the Duraline control valve include:

• Zero Dead Leg Control: Eliminates crevices in the valve, maintaining high water purity by preventing bacterial growth.
• Easy Open/Close Functionality: 120-degree rotation from full flow to closed.
• Extended Life: PTFE sealed, encapsulated PTFE shut-off seal.
• Compliance with SEFA Code: Black handle with white marker and black "DI" text per SEFA code recommended practice No. 7 for DI Water Applications.
• Renewable Valve: Completely renewable by replacing the internal cartridge DL-RC180-PVD, per SEFA 7-2010-8.2a.
• Positive Stop: Ensures a secure off position, which helps prevent overtightening.
• Low Torque Operation: Requires minimal effort to turn on and off, reducing user strain and wear on the valve.

Construction for Durability and Reliability The LG-DD-R3 is constructed with high-quality materials, ensuring longevity and resistance to harsh laboratory conditions. The body is made from PVDF (Polyvinylidene fluoride), providing excellent chemical resistance and compatibility with UPW applications. PTFE seals ensure a secure and leak-free operation. No elastomers, metals, or lubricants are used in the construction, ensuring the highest level of purity. The robust design and smooth internal flow path contribute to its reliable performance and durability.

Efficient and User-Friendly Design The LG-DD-R3 includes several features that simplify installation and operation:

• Mounting Hole Dimension: Requires a single 1" diameter hole for easy installation.
• Ergonomic Handle: Designed for ease of use, reducing user strain.
• Adjustable Flow Rate: The Duraline control valve allows for precise control of ultra-pure water and chemical flow to suit various tasks.
• Deck-Mounted Installation: Ensures secure and stable placement on lab benches.

Compliance with Industry Standards The LG-DD-R3 meets or exceeds FDA, USDA, and USP standards for safety and performance, ensuring it complies with laboratory requirements. With the Duraline control valve and durable construction, this faucet delivers consistent and reliable performance for ultra-pure water and chemical dispensing applications.

Applications: The LG-DD-R3 is suitable for a wide range of ultra-pure water and chemical dispensing laboratory applications, including:

• Chemical Handling: Safe and precise dispensing of chemicals for preparing solutions and reagents.
• Ultra-Pure Water Dispensing: Accurate flow control of ultra-pure water for various laboratory applications.
• Reagent Preparation: Creating buffer solutions and other reagents with precise control.
• Equipment Rinsing: Efficient and controlled ultra-pure water flow for rinsing lab equipment to maintain cleanliness and prevent contamination.
• Analytical Testing: Providing ultra-pure water for high-precision analytical tests and experiments.
• Cell Culture: Dispensing ultra-pure water for preparing cell culture media and maintaining sterile conditions.
• Pharmaceutical Processing: Delivering ultra-pure water for drug formulation and other pharmaceutical applications.
• Biotechnology: Ensuring high-purity water for DNA/RNA sequencing, protein purification, and other biotech processes.
• General Lab Use: Versatile use for any laboratory requiring ultra-pure water for cleaning, dilution, and sample preparation.

For custom configurations or additional information, please contact our sales team at sales@marquestscientific.com.

Technical Specifications:

• Material: PVDF (Polyvinylidene fluoride) body, PTFE seals
• Mounting: Deck-mount installation for secure placement.
• Flow Rate: Adjustable flow rate of up to 2.5 GPM @ 80 PSI for precise control of ultra-pure water and chemical flow
• Compliance: Meets industry standards for safety and performance

For custom configurations or additional information, please contact our sales team at sales@marquestscientific.com.