Jiangsu Huida separating funnels, also known as piston-type separating funnels, are essential glass instruments for the precise separation of immiscible solutions of different densities. Made of high borosilicate 3.3 glass, they offer excellent thermal shock resistance and chemical corrosion resistance. A key feature is the integrated PTFE (Teflon) piston, which allows for smooth, reliable, and non-sticky flow control without the need for lubrication. The funnel is equipped with standard ground glass joints (e.g., ST/NS 29/32) for safe and leak-free connection to other instruments. The transparent, ergonomically designed funnel body features clear graduations for easy and accurate measurements.

 Features  Of Separatory Funnel

Grease-free PTFE piston: Eliminates the risk of contamination and prevents jamming. Compared to traditional glass pistons, it is simple to operate and maintenance-free.

Excellent chemical corrosion resistance: Made of high-quality borosilicate glass, it can withstand strong acids, strong alkalis, and organic solvents.

Enhanced safety and durability: Reinforced edges and uniform wall thickness prevent breakage. The PTFE piston mechanism offers exceptional crack and jamming resistance.

Precision Engineering: Laser-etched permanent graduations and a beveled pouring spout enable precise separation and clean pouring.

Applications Of Separatory Funnel 

This separatory funnel is essential in analytical, organic synthesis, and quality control laboratories for solvent extraction, washing, and purification. In medical and clinical laboratories, it plays a crucial role in:

Sample Preparation: Extracting hormones, drugs, or metabolites from biological fluids (blood, urine) for diagnostic analysis.

Lipid and Vitamin Analysis: Separating lipid-soluble compounds for biochemical assays.

Pharmaceutical Testing: Purifying and separating compounds during drug development and quality assurance processes.

Why Choose Jiangsu Huida

Choosing Jiangsu Huida means choosing superior quality and innovation. With decades of expertise in laboratory glassware manufacturing, we ensure that every separatory funnel meets the highest standards of precision and reliability. We invest in advanced production technologies and rigorous quality control to create products with superior chemical resistance, mechanical strength, and user safety. We focus on user-centric designs—such as grease-free PTFE pistons—to solve common laboratory challenges, thereby improving efficiency and ensuring data integrity. Jiangsu Huida is a trusted partner for laboratories worldwide, providing stable performance, excellent technical support, and cost-effective products to safeguard your critical research and analysis.

Frequently Asked Questions (FAQ)

Q1: What are the main advantages of using PTFE pistons in separatory funnels compared to glass pistons?

A: PTFE pistons are self-lubricating, eliminating the need for grease and preventing sample contamination. They also prevent jamming, ensure smoother flow control, and offer greater chemical resistance.

Q2: How to properly clean and maintain separatory funnels to extend their lifespan?

A: Rinse immediately after use. Use a suitable solvent or mild detergent for cleaning. Avoid using abrasive cleaners. For PTFE pistons, simply disassemble, rinse, and reassemble—no grease required. Store on a dedicated holder. 

Q3: Can this separatory funnel be used in automated extraction processes?

A: Yes. The standardized ground glass connector and reliable PTFE piston make it compatible with a variety of automated extraction devices. Its stable flow characteristics are ideal for repeatable semi-automated experimental procedures.