TH12 Spare Parts List Overview
The TH12 spare parts list is an important reference document for industrial instrument installation and maintenance, used to guide users in correctly selecting and purchasing spare parts. This list details the specifications, ordering codes, and process connection options for the TU301 ferrule threaded fitting.
This list applies to 316 stainless steel material, providing multiple sizes and connection methods to meet different working condition requirements. Please note that this unit is not repairable and must be replaced as a whole.
Ordering Code Rules
The ordering code consists of letter codes, representing the ferrule size, process connection thread, and adjustment method. The detailed coding description is as follows.
Ferrule Thread Specifications and Process Connection
The table below lists all available ferrule sizes, process connection threads, materials, and adjustment methods. The first two digits of the code indicate the ferrule size and process connection, and the third digit indicates the adjustment method (A for one-time fixed, C for re-adjustable).
| Ordering Code | Ferrule Size | Process Connection | Material | Adjustment Method |
|---|---|---|---|---|
| BA | 1/8" | NPT1/8 | 316 | One-time |
| BB | 1/8" | NPT1/4 | 316 | One-time |
| BC | 1/8" | NPT1/8 | 316 | Re-adjustable |
| BD | 1/8" | NPT1/4 | 316 | Re-adjustable |
| CA | 3/16" | NPT1/8 | 316 | One-time |
| CB | 3/16" | NPT1/4 | 316 | One-time |
| CC | 3/16" | NPT1/8 | 316 | Re-adjustable |
| CD | 3/16" | NPT1/4 | 316 | Re-adjustable |
| DA | 1/4" | NPT1/8 | 316 | One-time |
| DB | 1/4" | NPT1/4 | 316 | One-time |
| DC | 1/4" | NPT1/8 | 316 | Re-adjustable |
| DD | 1/4" | NPT1/4 | 316 | Re-adjustable |
| EA | 3/8" | NPT1/4 | 316 | One-time |
| EB | 3/8" | NPT1/4 | 316 | Re-adjustable |
| YY | Special version, TSP number must be specified | |||
Documentation Requirements and Version
When ordering, the documentation requirement code and version must be specified. The standard version code is K, and the documentation requirement code is 1 (standard).
- Documentation requirement: 1 = Standard
- Version: K = Standard
Additional Options
The additional option code is 1, indicating that no additional options are selected. If other options are required, they must be specially specified when ordering.
- Additional options: 1 = Not selected
Selection Steps
To ensure correct procurement, please follow the steps below to determine the ordering code:
- Determine the required ferrule size (1/8", 3/16", 1/4", or 3/8").
- Determine the process connection thread specification (NPT1/8 or NPT1/4).
- Select the adjustment method: one-time fixed (A) or re-adjustable (C).
- Based on the above selections, find the corresponding ordering code from the table.
- Confirm the documentation requirement is 1 (standard) and the version is K (standard).
- Confirm the additional option is 1 (not selected).
For example, if a 1/4" ferrule, NPT1/4 process connection, and re-adjustable are required, the ordering code is DD.
Precautions
- This unit is not repairable and must be replaced as a whole when damaged.
- Special version (YY) requires a TSP number.
- All fitting materials are 316 stainless steel, suitable for corrosive environments.
- When ordering, please provide the complete ordering code, documentation requirements, version, and additional options.