Jenis-jenis Penyuntik untuk Kerajinan Jahit dan DIY
Designing An Injection Quill
The design of an injection quill is governed by various parameters like:
Design calculation
The wake frequency is calculated following the guidelines provided in the ASME PTC 19.3 TW standard for Thermowell as the injection quill is similar to it. The design of chemical injection quills needs both thermal and stress considerations. So process parameters like fluid, temperature, pressure, velocity, flow rate, density, viscosity, etc must be known for designing the injection quill.
Material of Construction
The material grade of the injection quill is selected such that the material is suitable for the service and the chemical to be injected. As the quill forms an integrated assembly together with the DBB and the check valve, several parameters similar to an isolation valve design must be evaluated.
Dimensions
The length of the injection quill is one of the most important parameters for wake frequency calculation. The length can be customized. Bore Size, Insertion Length, Tip Diameter, Root Diameter, Overall length, etc are the important dimensions to be considered during design.
Nozzles
In general, cylindrical tubes or nozzles are used for injection quills. However, specially designed nozzles depending on the application can be designed.
Mounting options
The design of injection quills can vary based on mounting options. Various different mounting options like flanged, welded, or threaded are possible. However, the quill/probe outside diameter (O.D.) must fit all the way down to the process stream.

Injection Quills
- Description
- Additional information
- Specifications
- Installation Instructions
- Q&A
- Advantages and Disadvantages
- Applications
- Downloads
- Drawings
- Reviews (0)
Our Injection Quills, and machined housings, ensure reliable and even chemical dispersion at the pipeline’s center. Throughout the manufacturing process, we individually test all quills to meet high standards and ensure they are leak-free. Each unit contains a built-in, removable spring-loaded ball check that stops the injected chemical from entering the main flow when the system is switched off.
Specific Point of Entry
Purpose
Another purpose of quills is to facilitate easy maintenance and replacement of the injecting components. You can detach the quill from the pipeline or process stream. It allows for convenient access and replacement of the injecting mechanism without interrupting the entire system’s operation.
Overall, the primary purpose of injection quills is to ensure the accurate, controlled, and safe introduction of additives. This introduction is into pipelines or process streams, while also protecting the integrity of the injected substance and facilitating ease of maintenance.
In addition to their primary purpose, injection quills offer a few other benefits:
Improved Mixing
Injection quills promote better mixing of the additive with the main process fluid. Introducing the additive at a specific point and with a precise dosage enhances the overall dispersion. It also enhances the distribution of the injected substance, resulting in more uniform and efficient mixing.
Tags: quill injection types