CHDT Series Fluid Plugs & Threaded Sealing Fittings
The CHDT Series is designed for sealing fluidic interfaces, matching threaded ports, and completing laboratory fluid-path assemblies. The current range includes 10 purchasable specifications covering 1/16 and 1/8 tubing-related sizes, together with 10-32UNF, 1/4-28UNF, and 5/16-24UNF interfaces. Available configurations include conical-bottom, flat-bottom, flat-end, female-thread, male-thread, and external-hex plug designs, allowing progressive selection according to the actual port geometry.
Multiple Bottom Geometries and Thread Styles for Diverse Port-Sealing Requirements
The supplied data identifies specification names, pricing, and quantity fields. Material, operating temperature, pressure rating, and other properties not included in the source data are intentionally left unspecified and should be confirmed before ordering.
For the1/16 + 10-32UNF specification group, the current range includes CHDT-03, CHDT-09, CHDT-12, and CHDT-13. CHDT-03, CHDT-12, and CHDT-13 are explicitly identified as conical-bottom versions, while CHDT-09 includes a 10-32UNF female-thread configuration.
For the1/8 specification group, the current range includes the CHDT-04 1/8 plug and the CHDT-10 1/8 + 1/4-28 flat-bottom version. When the tubing size is known, selecting 1/16 or 1/8 first is an efficient way to narrow the available options.
For ports that benefit from an external wrenching feature, severalExternal-Hex Plug: CHDT-09 combines a 10-32UNF female thread with an external hex, CHDT-10 combines a 1/4-28UNF female thread with an external hex, and CHDT-13 combines a 10-32UNF male thread with an external hex.
CHDT-08 is specified as5/16-24UNF Flat End, the standalone 5/16-24UNF interface option in the current list. Where one CHDT model family contains multiple purchasable configurations—such as CHDT-09, CHDT-10, and CHDT-13—selection should continue by size, thread direction, and end geometry rather than by model number alone.
Selection Highlights
Current models cover 10-32UNF, 1/4-28UNF, and 5/16-24UNF, making it easier to select by the instrument or device port.
Conical-bottom, flat-bottom, and flat-end descriptors provide practical structural cues for distinguishing different port styles.
The range includes both female-thread plugs and male-thread external-hex configurations; match the thread direction to the actual equipment port.
CHDT-09, CHDT-10, and CHDT-13 each include a purchasable option identified with an external-hex geometry.
Quick Selection Filter
Combine tubing size, thread interface, and structure to narrow the table to matching CHDT options.
| No. | Specification / Model | Tubing Size | Thread Interface | End Structure | Thread Direction | Geometry Keyword |
|---|---|---|---|---|---|---|
| 01 | CHDT-03 (1/16) 10-32UNF Conical Bottom | 1/16 | 10-32UNF | Conical Bottom | Not specified | Conical-Bottom Structure |
| 02 | CHDT-04 1/8 Plug | 1/8 | Not specified | Plug | Not specified | Standard Plug |
| 03 | CHDT-08 5/16-24UNF Flat End | Not specified | 5/16-24UNF | Flat End | Not specified | Flat-End Structure |
| 04 | CHDT-09 (1/16) 10-32UNF Female Thread | 1/16 | 10-32UNF | Not specified | Female Thread | 1/16 Female-Thread Specification |
| 05 | CHDT-09 10-32UNF Female Thread + External-Hex Plug | Not specified | 10-32UNF | Plug | Female Thread | External Hex |
| 06 | CHDT-10 1/4-28UNF Female Thread + External-Hex Plug | Not specified | 1/4-28UNF | Plug | Female Thread | External Hex |
| 07 | CHDT-10 (1/8) 1/4-28 Flat Bottom | 1/8 | 1/4-28 | Flat Bottom | Not specified | Flat-Bottom Structure |
| 08 | CHDT-12 (1/16) 10-32UNF Conical Bottom | 1/16 | 10-32UNF | Conical Bottom | Not specified | Conical-Bottom Structure |
| 09 | CHDT-13 10-32UNF Male Thread + External-Hex Plug | Not specified | 10-32UNF | Plug | Male Thread | External Hex |
| 10 | CHDT-13 (1/16) 10-32UNF Conical Bottom | 1/16 | 10-32UNF | Conical Bottom | Not specified | Conical-Bottom Structure |
Model Specification Comparison
All 10 purchasable specifications from the current data are listed below. Parameters not stated in a specification name are marked as “Not specified.”
| No. | Model / Specification | Size | Thread | Bottom / End | Thread Direction | Hex Feature | Key Identification |
|---|---|---|---|---|---|---|---|
| 01 | CHDT-03 (1/16) 10-32UNF Conical Bottom | 1/16 | 10-32UNF | Conical Bottom | Not specified | Not specified | 1/16 + 10-32UNF + Conical Bottom |
| 02 | CHDT-04 1/8 Plug | 1/8 | Not specified | Plug | Not specified | Not specified | 1/8 Standard Plug |
| 03 | CHDT-08 5/16-24UNF Flat End | Not specified | 5/16-24UNF | Flat End | Not specified | Not specified | 5/16-24UNF + Flat End |
| 04 | CHDT-09 (1/16) 10-32UNF Female Thread | 1/16 | 10-32UNF | Not specified | Female Thread | Not specified | 1/16 Female-Thread Specification |
| 05 | CHDT-09 10-32UNF Female Thread + External-Hex Plug | Not specified | 10-32UNF | Plug | Female Thread | External Hex | Female Thread + External Hex |
| 06 | CHDT-10 1/4-28UNF Female Thread + External-Hex Plug | Not specified | 1/4-28UNF | Plug | Female Thread | External Hex | 1/4-28UNF + External Hex |
| 07 | CHDT-10 (1/8) 1/4-28 Flat Bottom | 1/8 | 1/4-28 | Flat Bottom | Not specified | Not specified | 1/8 + 1/4-28 + Flat Bottom |
| 08 | CHDT-12 (1/16) 10-32UNF Conical Bottom | 1/16 | 10-32UNF | Conical Bottom | Not specified | Not specified | 1/16 + 10-32UNF + Conical Bottom |
| 09 | CHDT-13 10-32UNF Male Thread + External-Hex Plug | Not specified | 10-32UNF | Plug | Male Thread | External Hex | Male Thread + External Hex |
| 10 | CHDT-13 (1/16) 10-32UNF Conical Bottom | 1/16 | 10-32UNF | Conical Bottom | Not specified | Not specified | 1/16 + 10-32UNF + Conical Bottom |
Interface & Structure Guide
This geometry is explicitly identified for CHDT-03, CHDT-12, and CHDT-13 (1/16).
CHDT-08 is a 5/16-24UNF flat-end option, while CHDT-10 (1/8) is a 1/4-28 flat-bottom option.
The current range includes clearly identified female-thread options in both 10-32UNF and 1/4-28UNF.
CHDT-09, CHDT-10, and CHDT-13 all include external-hex purchase options.
Recommended Selection Sequence
First determine whether the equipment port requires 10-32UNF, 1/4-28UNF, or 5/16-24UNF.
If the specification references tubing size, confirm whether 1/16 or 1/8 is required.
Match the port geometry to a conical-bottom, flat-bottom, or flat-end configuration.
For plug specifications, confirm female versus male thread and whether an external-hex feature is required.
Typical Applications
Select the matching CHDT specification according to port thread and geometry.
The 1/16 and 1/8 options support component matching within the corresponding tubing-size systems.
Female- or male-thread plugs can be matched to the thread direction of the equipment port.
Conical-bottom, flat-bottom, and flat-end versions can be differentiated according to the original port structure.
FAQ
How many CHDT specifications are currently available?
The current source data contains 10 purchasable CHDT options.
Which specifications are explicitly conical-bottom?
The specifications explicitly identified as conical-bottom are CHDT-03 (1/16) 10-32UNF, CHDT-12 (1/16) 10-32UNF, and CHDT-13 (1/16) 10-32UNF.
Which specifications include an external-hex feature?
The current external-hex options are CHDT-09 10-32UNF Female Thread + External-Hex Plug, CHDT-10 1/4-28UNF Female Thread + External-Hex Plug, and CHDT-13 10-32UNF Male Thread + External-Hex Plug.
Why are there two CHDT-09 specifications?
One CHDT-09 option is 1/16 + 10-32UNF female thread, while the other is 10-32UNF female thread + external-hex plug. The CHDT-09 number alone is therefore not sufficient to identify the exact part.
What is the difference between the two CHDT-10 options?
One is a 1/4-28UNF female-thread external-hex plug, while the other is a 1/8 + 1/4-28 flat-bottom specification.
Why are material and pressure ratings not shown?
These fields are not included in the supplied specification data. To avoid publishing unverified values, material and pressure ratings are left for technical confirmation.
Purchase & Technical Support
Standard CHDT options can be selected by model, tubing size, interface thread, bottom geometry, and thread direction. If the exact specification is uncertain, send a photo of the existing plug together with the equipment thread, tubing size, end geometry, and required quantity for further verification.
