Three-Port Design
Product Overview
Spirax Sarco TD16/TD16F Thermodynamic Steam Trap is a high-efficiency steam system drainage device, primarily used for low capacity steam mains and tracer lines, also suitable for other industrial applications within its specified pressure, temperature and capacity ranges.
Key Advantages
- All Stainless Steel Construction: Body, cap, and disc all made of stainless steel for excellent corrosion resistance
- Dual Connection Options: TD16 threaded connection, TD16F flanged connection to meet different piping requirements
- Maintainable Design: Disc can be lapped or replaced, strainer can be cleaned, reducing maintenance costs
- Optional Insulating Hood: Effectively reduces heat loss, prevents environmental impact in cold conditions
- Optional Integral Blowdown Valve: Convenient for system blowdown maintenance
Model Selection
TD16 Threaded Connection (BSP)
| Model | Size | MPN | Connection |
|---|---|---|---|
| 1/2" TD16 | 1/2" | 1510015000 | BSP Threaded |
| 3/4" TD16 | 3/4" | 1510020000 | BSP Threaded |
| 1" TD16 | 1" | 1510025000 | BSP Threaded |
TD16 Flanged Connection (PN16)
| Model | Size | MPN | Connection |
|---|---|---|---|
| DN15 TD16 | DN15 | 1510015002 | PN16 Flanged |
| DN20 TD16 | DN20 | 1510020002 | PN16 Flanged |
| DN25 TD16 | DN25 | 1510025002 | PN16 Flanged |
Technical Specifications
Pressure and Temperature Parameters
| Parameter | Specification |
|---|---|
| PN Rating | PN 25 |
| Max. Allowable Pressure (PMA) | 25 bar g |
| Max. Allowable Temperature (TMA) | 300 °C |
| Max. Working Pressure (PMO) | 16 bar g |
| Max. Working Temperature (TMO) | 300 °C |
| Max. Cold Hydraulic Test Pressure | 38 bar g |
| Max. Working Backpressure | Not exceeding 80% of inlet pressure |
Backpressure Limitation
During operation, the maximum working backpressure must not exceed 80% of the inlet pressure, otherwise the steam trap will not close properly.
Operating Range
- Operating temperature range: Up to 300 °C (following saturated steam curve)
- Operating pressure range: Up to 16 bar g (recommended maximum working pressure)
Product Structure
Materials of Construction
| Part No. | Part Name | Material Specification |
|---|---|---|
| 1 | Body | Stainless Steel (ASTM A743.Gr.CA40F) |
| 2 | Cap | Stainless Steel (AISI 416) |
| 3 | Disc | Stainless Steel (BS 1449 420 S45) |
| 4 | Strainer | Stainless Steel (BS 1449 304 S16) |
| 5 | Strainer Cap | Stainless Steel (AISI 416) |
| 6 | Strainer Cap Gasket | Stainless Steel (BS 1449 304 S16) |
| 7 | Insulating Hood (Optional) | Aluminium |
| 8 | Flange | Carbon Steel |
Note
The insulating hood is not shown in the product diagram and is an optional accessory.
Dimensions and Weights
TD16 Threaded Connection (Approximate)
| Size | A (mm) | B (mm) | E (mm) | G (mm) | H (mm) | J (mm) | K (mm) | U (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 41 | 78 | 55 | 85 | 20 | 52 | 57 | 38 | 0.75 |
| 3/4" | 44 | 85 | 60 | 100 | 20 | 52 | 57 | 38 | 0.95 |
| 1" | 48 | 95 | 65 | 100 | 20 | 58 | 57 | 38 | 1.50 |
TD16F Flanged Connection (Approximate)
| Size | A (mm) | B1 (mm) | E (mm) | G (mm) | H (mm) | J (mm) | K (mm) | U (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| DN15 | 41 | 150 | 55 | 85 | 20 | 52 | 57 | 38 | 1.95 |
| DN20 | 44 | 150 | 60 | 100 | 20 | 52 | 57 | 38 | 2.65 |
| DN25 | 48 | 160 | 65 | 100 | 20 | 58 | 57 | 38 | 3.90 |
Dimension Notes
- B: Face-to-face dimension for threaded connection type
- B1: Face-to-face dimension for flanged connection type
Capacity Characteristics
Optional Accessories
| Accessory | Function |
|---|---|
| Insulating Hood | Prevents excessive cycling caused by heat loss in cold, wet or windy environments, improving operational stability |
| Integral Blowdown Valve | Installed by drilling a 1/4" BSP tapped hole in the strainer cap, convenient for system blowdown maintenance (refer to TI-P153-01) |
Installation and Maintenance
Installation Instructions
- Preferably install on horizontal piping, other positions acceptable based on site requirements
- Ensure piping system is clean and free of debris before installation
- Steam trap inlet and outlet connections must be secure and comply with relevant piping installation standards
Pre-Maintenance Preparation
Before performing any maintenance work, ensure:
- Isolation valves before and after the steam trap are fully closed
- No residual pressure in the piping system
- Steam trap has cooled to ambient temperature
Disc and Seat Maintenance
- If an insulating hood is fitted, remove it first
- Use a standard spanner to loosen the cap, never use adjustable wrenches or pipe wrenches to avoid damaging the cap
- For minor wear on disc and seat surfaces: Use lapping compound with a figure-of-eight motion to lap the disc and seat separately, lapping depth not exceeding 0.25mm
- For severe wear that cannot be repaired by lapping: Machine and polish the seat surface and replace with a new disc
- Reassembly: The grooved face of the disc must contact the seat face, no gasket required when tightening the cap, but apply suitable high-temperature grease
Strainer Cleaning and Replacement
- Use a spanner to loosen the strainer cap and remove the strainer
- Clean the strainer, replace if damaged
- Reassembly: Insert the strainer into the strainer cap, screw into the cap, apply a small amount of molybdenum disulphide lubricant to the thread lead, ensure gasket surface is clean
Recommended Tightening Torques
| Part | Size | Tightening Torque (Nm) |
|---|---|---|
| Cap (Part 2) | 1/2", DN15 | 135 - 150 |
| Cap (Part 2) | 3/4", DN20 | 135 - 150 |
| Cap (Part 2) | 1", DN25 | 135 - 150 |
| Strainer Cap (Part 5) | All sizes | 170 - 190 |
Spare Parts
Available Spare Parts
| Spare Part Name | Part No. | Notes |
|---|---|---|
| Disc | 3 | Suitable for all models |
| Strainer and Gasket | 4, 6 | Supplied as a set |
| Strainer Cap Gasket | 6 | Supplied separately |
| Insulating Hood | 7 | Optional accessory |
Spare Parts Ordering
When ordering spare parts, clearly specify the spare part name, corresponding steam trap model and size.
Example: Strainer and gasket for 1/2" TD16 Thermodynamic Steam Trap
Ordering Information
Ordering Requirements
When ordering, provide the full product description, clearly specifying the steam trap model, size, connection type and other key configurations. If optional accessories are required, specify in the order.
Ordering Examples
- Threaded Connection: Spirax Sarco TD16 Thermodynamic Steam Trap, 1/2" BSP threaded connection
- Flanged Connection: Spirax Sarco TD16F Thermodynamic Steam Trap, DN25 PN16 flanged connection
- With Insulating Hood: Spirax Sarco TD16 Thermodynamic Steam Trap, 3/4" NPT threaded connection, with insulating hood
Important Notes
- If optional accessories such as insulating hood or integral blowdown valve are required, specify in the order
- Confirm the product model matches the application pressure, temperature and condensate load requirements
- For flanged connection type, confirm flange standard matches site piping
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