Specifications

Y‑Shaped Connector · Specifications

Standard sizes are listed below. All products comply with GB/T , ASTM , and ISO standard taper systems. Custom sizes and reducing configurations are available.

Request custom specs

GB/T	ASTM	ISO	Port Configuration	Branch Angle	Material
Please contact us to confirm the available specifications.

* Joint numbers (14#, 19#) indicate the largest diameter (mm) of the taper. All are 1:10 taper.
* GB/ASTM/ISO designations are different standard identifiers — physical dimensions are identical and fully interchangeable.
* Hose‑barb versions (8mm / 10mm O.D.) available for rubber tubing connections.
* Custom reducing example: one 24# port + two 19# ports.
* Contact our sales team for MOQ and lead time on custom orders.

✦ Customization Services — We offer non‑standard joint sizes, reducing configurations, custom branch angles, and hose‑barb ports. Share your specific requirements and our technical team will provide a tailored solution.

Product Description

The Y‑shaped connector is a three‑way glass adapter designed for splitting or merging gas/liquid flow in standard taper glass assemblies. The wide‑angle Y geometry facilitates connections in tight spaces and reduces dead volume. It is an essential component for Schlenk lines, vacuum manifolds, multi‑port reaction systems, and continuous flow setups.

Key Features

Borosilicate Glass 3.3: ISO 3585 compliant, low thermal expansion, chemical resistance to most solvents and acids
Multi‑Standard Compliance: Precision‑ground 1:10 taper meets GB/T, ASTM E, and ISO 3585 standard taper specifications, guaranteeing full interchangeability with all major standard systems
Customizable Configurations: Available in 14#, 19#, 24#, 29# as well as reducing combinations (e.g., 24# to 19#) and hose‑barb ports upon request
Y‑Geometry: Provides wide‑angle branch separation for better accessibility and reduced dead volume
Optical Clarity: Allows visual inspection of fluid flow or phase changes

Quality Assurance

Each Y‑connector is inspected for taper accuracy, angle precision, and surface integrity to ensure a reliable seal with all standard joint components. Custom bulk orders are welcome.

Tip: Use matching standard joint sizes for leak‑free connections. For rubber tubing connections, consider the hose‑barb version or use a reducing adapter.

Applications

Typical Uses

Schlenk Line Systems

Distributing inert gas to multiple reaction vessels under inert atmosphere

Vacuum Manifolds

Connecting multiple flasks to a single vacuum pump

Continuous Flow Chemistry

Splitting feed streams for parallel reactions

Distillation/Reflux Setups

Transition piece for complex glassware assemblies

Teaching Labs

Fundamental glassware connections for organic/inorganic courses

Compatible Equipment

Standard joint flasks, condensers, distillation and fractionating heads

Inert gas (N₂/Ar) supply systems

Vacuum pumps and vacuum lines

Rubber tubing (requires hose‑barb version or adapter)

Tip: Always use matching standard joint sizes for optimal sealing. For flexible tubing connections, choose the hose‑barb configuration or use a suitable adapter.

Operation & Maintenance

User Guide

Before Use

Inspect for cracks, chips, or scratches on any joint
Clean all joint surfaces with a soft cloth to remove particulates
Confirm that the joint sizes of all components match

Installation

Align the joint with the receiving port and gently twist into place
Use a clamp on the body of the Y‑connector (not on the joints) for support
For vacuum applications, ensure all joints are well‑seated

Operational Cautions

Balance pressure across branches when splitting gas flows
Avoid rapid temperature changes when handling liquids
Apply a thin layer of vacuum grease if joints are tight (ensure compatibility)

Cleaning & Storage

Rinse immediately after use to prevent blockage
Use soft brushes and appropriate detergents for the inner channels
Air dry and store with protective paper between ground joints
Protect joints from impacts

Y‑Shaped Connector · Selection Guide

Four key dimensions determine the right Y‑connector for your system: joint size, port type, reducing configuration, and material.

1. By Joint Size

Joint size determines compatibility with your existing standard taper glassware. GB/T, ASTM, and ISO designations differ but are physically interchangeable (all 1:10 taper).

Scale	GB/T	ASTM	ISO	Typical Volume	Matching Apparatus
Please contact us to confirm the available specifications.

2. By Port Type

All‑Joint (Standard): All three ports are standard taper joints for all‑glass systems. Ideal for Schlenk lines, vacuum manifolds, and gas/liquid glass lines.
Mixed Ports (Custom): Some joint(s) replaced with hose barbs (8mm / 10mm O.D.) for rubber or plastic tubing. Suitable for connecting external gas supplies or cooling water lines.
All‑Barb (Custom): All three ports are hose barbs for temporary setups or teaching labs with lower sealing requirements.

3. By Reducing Configuration

When connecting instruments of different joint sizes, choose a reducing Y‑connector to unify your system.

Reducing Example	Description	Typical Use
Please contact us to confirm the available specifications.

Note: Custom reducing combinations are available — just tell us your requirements.

4. By Material

Borosilicate 3.3 (Standard): Thermal shock resistance up to 280°C, chemical resistance to most solvents and acids. Covers 95% of lab applications.
Quartz Glass (Custom): Withstands >1000°C, UV‑transparent. Ideal for high‑temperature reactions or photochemistry.

5. Quick Selection Checklist

Follow this decision flow to quickly identify the right configuration:

① Scale? Micro → 14# | Standard → 19# | Mid‑Scale → 24# | Large → 29#
② Connection type? All‑glass → All‑Joint | Tubing involved → Mixed or All‑Barb
③ Reducing needed? Same sizes → Standard | Different sizes → Custom Reducing
④ Special conditions? Standard → Borosilicate 3.3 | High‑temp/UV → Quartz (Custom)

✦ Need help selecting? Contact our technical support team with your experimental conditions and connection requirements — we'll recommend the optimal configuration.

Care & Notes

Show care & notes

Safety Precautions

Always operate in a fume hood when handling flammable or toxic gases
Verify joint integrity and glass strength before applying vacuum
Wear protective gloves and safety goggles

Do not

Never use cracked or damaged connectors under vacuum or pressure