Three-Port Design
Product Overview
Armstrong CD-3300 and CD-3300S Series are controlled disc steam traps featuring all-stainless steel construction, designed for efficient steam system drainage. The core advantage of both products is the 3 internal discharge ports, ensuring stable disc operation and significantly extending trap service life. They are compatible with trap stations or universal connectors to meet different installation requirements.
The CD-3300 Series offers multiple connector options including standard connector, IS-2 connector with built-in filter, and TVS4000 connector, supporting DN15, 20, 25 nominal diameters. The CD-3300S Series features an integral filter, eliminating the need for additional filters in the pipeline or connector, requiring only a standard connector and supporting DN15, 20 nominal diameters. Both products feature maximum 3.1MPa working differential pressure and 363kg/h maximum capacity with stable and reliable performance.
Technical Specifications
Core Performance Parameters
| Parameter | CD-3300 Series | CD-3300S Series |
|---|---|---|
| Max Allowable Pressure (Shell) | 5.0MPa @ 400°C | 5.0MPa @ 400°C |
| Max Working Differential Pressure | 3.1MPa @ 236°C | 3.1MPa @ 236°C |
| Max Capacity | 363kg/h | 363kg/h |
| Nominal Diameter (DN) | 15, 20, 25 | 15, 20 |
| Pressure Unit Conversion | 1 barg = 0.1MPa | 1 barg = 0.1MPa |
Capacity Charts
Dimensions and Weight
CD-3300 Dimensions
Standard Connector Dimensions (Unit: mm)
| DN | A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| 15 | 38 | 73 | 60 | 35 | 86 | 20 | 46 | 46 |
| 20 | 38 | 73 | 60 | 35 | 86 | 20 | 46 | 46 |
IS-2 Connector with Filter Dimensions (Unit: mm)
| DN | A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| 15 | 38 | 94 | 89 | 67 | 86 | 22 | 25 | 64 |
| 20 | 38 | 94 | 89 | 67 | 86 | 22 | 25 | 64 |
| 25 | 38 | 94 | 101 | 67 | 90 | 22 | 25 | 64 |
TVS4000 Connector Dimensions (Unit: mm)
| DN | Test Port DN | A | B | C | D | E | F | G | H | J |
|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 6 | 38 | 198 | 120 | 83 | 90 | 98 | 114 | 83 | 221 |
| 20 | 6 | 38 | 198 | 120 | 83 | 90 | 98 | 114 | 83 | 221 |
Flange Connection Length L (Unit: mm)
| Type | DN | HG20592 PN63 RF | ASME B16.5 CL300 RF |
|---|---|---|---|
| Standard | 15 | 160 | 150 |
| Standard | 20 | 180 | 154 |
| IS-2 | 15 | 190 | 180 |
| IS-2 | 20 | 210 | 183 |
| IS-2 | 25 | 240 | 204 |
| TVS4000 | 15 | 210 | 210 |
| TVS4000 | 20 | 240 | 240 |
CD-3300 Weight (Unit: kg)
| Type | DN | Trap Body | Trap + Connector | Trap + Connector + Flange |
|---|---|---|---|---|
| Standard | 15 | 0.91 | 1.4 | 3.22 |
| Standard | 20 | 0.91 | 1.4 | 4.12 |
| IS-2 | 15 | 0.91 | 1.6 | 3.42 |
| IS-2 | 20 | 0.91 | 1.6 | 4.32 |
| IS-2 | 25 | 0.91 | 1.8 | 5.44 |
| TVS4000 | 15 | 0.91 | 3.6 | 5.42 |
| TVS4000 | 20 | 0.91 | 3.6 | 6.32 |
CD-3300S Series Dimensions and Weight (Unit: mm/kg)
| Parameter | Value (DN15) | Value (DN20) |
|---|---|---|
| A | 70 | 70 |
| B | 105 | 105 |
| C | 60 | 60 |
| D | 64 | 64 |
| E | 111 | 111 |
| F | 20 | 19 |
| G | 70 | 70 |
| H (Blowdown Port) | 6 | 6 |
| Trap Weight | 1.9 | 1.9 |
Material Specifications
CD-3300 Series Materials
| Component | Material |
|---|---|
| Cap | ASTM A743 CA40 Stainless Steel |
| Disc | ASTM A276 Gr.420 Stainless Steel |
| Body | ASTM A276 Gr.420 Stainless Steel |
| Standard Connector | 304 Stainless Steel |
| IS-2 Connector (Built-in Filter) | 20 Mesh Stainless Steel |
| Blowdown Plug (IS-2 Only) | Carbon Steel |
CD-3300S Series Materials
| Component | Material |
|---|---|
| Body | ASTM A743 Gr.CA40 Stainless Steel |
| Cap | ASTM A743 Gr.CA40 Stainless Steel |
| Disc | ASTM A276 Gr.420 Stainless Steel |
| Screen | 30 Mesh Stainless Steel |
| Screen Retainer | ASTM A743 Gr.CA40 Stainless Steel |
| Blowdown Plug | Carbon Steel (Stainless Steel Optional) |
Installation Features
Installation Methods
- Both products connect to steam trap lines via universal connectors, supporting any direction piping configuration to accommodate different installation angles.
- CD-3300 Series offers standard connector, IS-2 connector (built-in filter), or TVS4000 connector options. CD-3300S Series requires only a standard connector. The connector design simplifies piping procedures for convenient and efficient installation.
Maintenance Advantages
- Supports in-line trap replacement without pipeline disassembly, significantly reducing installation and maintenance time while lowering labor and cost investment.
- CD-3300S Series features an integral 30-mesh stainless steel screen to filter debris, eliminating the need for additional filters in the pipeline or connector, reducing system configuration complexity.
Optional Configurations
CD-3300 Series Options
- Blowdown Plug: Only applicable to IS-2 connector, carbon steel material.
CD-3300S Series Options
- Blowdown Plug: Default carbon steel material, stainless steel optional.
Ordering Information
When ordering, please specify the following information to ensure product compatibility:
- Product model (CD-3300 or CD-3300S)
- Nominal diameter (DN specification)
- Universal connector model (CD-3300 requires connector type: Standard/IS-2/TVS4000)
- Connection type and standard (e.g., HG20592 PN63 RF, ASME B16.5 CL300 RF)
- Maximum working pressure requirement
Note: Design, materials, weight, and performance specifications are approximate and subject to change without notice.
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