PTFE Key Stopcock, 3-way, T-Bore

The  GISCOM  PTFE Key Stopcock, 3-Way, T-Bore is a precision-engineered flow-control component designed for accurate direction and regulation of gases and liquids in laboratory glassware systems. Widely used in research, analytical, and industrial setups, it ensures smooth, leak-free operation even under demanding chemical environments. Its T-Bore configuration allows easy switching between channels, making it essential for complex fluid transfer, vacuum lines, filtration assemblies, and reaction apparatuses.

Key Features

• 3-Way T-Bore Design enables controlled flow selection between multiple ports.
• Precision PTFE Key ensures excellent chemical resistance and smooth, low-torque operation.
• Crafted from Borosilicate Glass 3.3 for maximum durability and thermal stability.
• Interchangeable Stopcock Key for quick replacement and optimised workflow.
• Leak-proof sealing suitable for vacuum and pressure applications.
• High transparency for easy observation of fluid/chemical pathways.
• Corrosion-resistant, non-reactive construction, ideal for aggressive chemicals and solvents.
• Reusable, long-life component designed for consistent laboratory performance.

Material Specifications

Material: Borosilicate Glass 3.3 (Body) + Virgin PTFE (Key)
Properties:

• High thermal resistance (up to approx. 300°C intermittent).
• Excellent chemical durability against acids, alkalis, and organic solvents.
• Low thermal expansion coefficient ensures dimensional stability.
• Mechanical strength suitable for repeated handling and vacuum use.
  Standards Compliance:
• Manufactured in accordance with ISO 3585 (Borosilicate Glass 3.3)
• Dimensions and tolerances aligned with common DIN/ISO laboratory glassware norms
• PTFE key manufactured to international laboratory-grade specifications

Technical Specifications

• Type: 3-Way Stopcock, T-Bore
• Material: Borosilicate Glass 3.3 with PTFE Key
• Sizes Available: As per the standard size table
• Connection Compatibility: Interchangeable with standard glassware joints and laboratory tubing systems
• Tolerance/Accuracy: Precision-machined PTFE key ensures optimal sealing with minimal leakage
• Temperature Range: −20°C to +200°C continuous use (glass); PTFE suitable for up to 250°C
• Optional Accessories: Replacement PTFE keys, O-rings (if applicable), customised lengths

Handling & Precautions

• Ensure the stopcock is inserted gently to avoid stress on the glass or chipping.
• Clean with mild detergents or compatible solvents; avoid abrasive cleaners.
• Autoclavable; allow gradual heating and cooling to prevent thermal shock.
• Do not overtighten the PTFE key; operate with light torque for best results.
• Avoid exposure to direct flame or rapid temperature changes.
• Apply a thin layer of stopcock grease only if required (usually unnecessary with PTFE).
• Store in dry, dust-free conditions to maintain smooth operation.

Applications

Ideal for use in:

• Research Laboratories – fluid transfer, distillation setups, gas handling lines
• Pharmaceutical & Biotech Facilities – controlled dispensing, media transfer
• Chemical & Petrochemical Industries – reagent flow regulation, corrosive fluid handling
• Academic & Teaching Labs – general laboratory apparatus assembly
• QC/QA Laboratories – precision sampling, titration setups, vacuum manifolds

Its 3-way routing capability makes it highly versatile for multi-directional flow systems and complex experimental setups.