Environmental Product Declaration
Stainless Steel Manifold HKV2013AF with Flow Meters for Underfloor Heating
Environmental Product Declaration (EPD) for Stainless Steel Manifold HKV2013AF with Flow Meters for Underfloor Heating, manufactured by Watts Water Technologies. Declaration SmartEPD-2025-095-0634-01.3, prepared according to Smart EPD® Part A Product Category Rules for Building and Construction Products and Services, 1000, v1.2, valid until November 3, 2030.
- Functional unit
- 1 packaged product
- Valid until
- November 3, 2030
- PCR
- Smart EPD® Part A Product Category Rules for Building and Construction Products and Services, 1000, v1.2
Declaration details
- Manufacturer
- Watts Water Technologies
- Program operator
- Smart EPD
- Declaration number
- SmartEPD-2025-095-0634-01.3
- Date of issue
- November 3, 2025
- Valid until
- November 3, 2030
- Product category rules (PCR)
- Smart EPD® Part A Product Category Rules for Building and Construction Products and Services, 1000, v1.2 (version 1.2)
- Standard
- ISO 14025:2006 and EN 15804+A2:2019/AC:2021
- Functional unit
- 1 packaged product
- System boundary
- Cradle to grave (A1 - A3, A4, A5, B1 - B7, C1 - C4, D)
- Product specificity
- Product Specific
- Manufacturing specificity
- Facility Specific
- Manufacturing plant
- Watts Industries GmbH Germany (Godramsteiner Hauptstraße 167, 76829 Landau in der Pfalz-Godramstein, Germany)
- Product SKU
- HKV2013AF 0-4 VA12
- Product service life
- 75 years
- Verifier
- Sarah Curpen
- LCA software
- SimaPro 9.6
- Program instructions
- Smart EPD General Program Instructions v.2.0, March 2025
Life cycle assessment results
Results per 1 packaged product.
Environmental Impact Assessment Results
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GWP-total | kg CO2 eq | 3.25e+1 | 6.14e-1 | 6.56e-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.24e-2 | 1.29e-1 | 0 | -6.74e+0 |
| GWP-fossil | kg CO2 eq | 3.18e+1 | 6.14e-1 | 9.05e-3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.24e-2 | 1.30e-1 | 0 | -6.68e+0 |
| GWP-biogenic | kg CO2 eq | 5.79e-1 | 1.56e-4 | 5.66e-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.03e-5 | -1.55e-3 | 0 | -5.45e-2 |
| GWP-luluc | kg CO2 eq | 6.16e-2 | 2.82e-4 | 4.02e-6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.45e-5 | 1.91e-4 | 0 | -6.21e-3 |
| ODP | kg CFC 11 eq | 4.17e-7 | 7.96e-9 | 1.34e-10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.14e-10 | 1.83e-9 | 0 | -4.17e-8 |
| AP | mol H+ eq | 9.76e-1 | 5.45e-3 | 5.60e-5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.84e-4 | 1.44e-3 | 0 | -5.96e-2 |
| EP-freshwater | kg PO4 eq | 2.89e+1 | 3.65e-2 | 2.85e-3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.57e-6 | 7.71e-5 | 0 | -7.25e-3 |
| EP-marine | kg N eq | 6.20e-2 | 6.14e-5 | 8.05e-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.34e-5 | 3.34e-4 | 0 | -8.29e-3 |
| EP-terrestrial | mol N eq | 6.12e-2 | 1.81e-3 | 2.34e-5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.01e-4 | 3.75e-3 | 0 | -8.66e-2 |
| POCP | kg NMVOC eq | 7.02e-1 | 1.99e-2 | 2.44e-4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.54e-4 | 1.13e-3 | 0 | -2.71e-2 |
| ADP-minerals&metals | kg SO2 eq | 2.28e-1 | 6.00e-3 | 7.62e-5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.06e-7 | 8.00e-6 | 0 | -5.11e-4 |
| ADP-fossil | MJ | 9.16e-3 | 1.82e-6 | 2.59e-8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.51e-1 | 1.77e+0 | 0 | -8.44e+1 |
| WDP | m3 world eq deprived | 4.37e+2 | 8.41e+0 | 1.30e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.09e-3 | 1.95e-2 | 0 | -2.68e+0 |
| PM | Disease incidence | 4.40e-7 | 8.39e-9 | 1.41e-10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.24e-2 | 2.02e-8 | 0 | -6.70e+0 |
| IRP | kBq U235 eq | 3.21e+1 | 6.14e-1 | 9.06e-3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.63e-3 | 1.34e-2 | 0 | -4.51e-1 |
| ETP-fw | CTUe | 3.30e+0 | 1.14e-1 | 1.41e-3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.69e-4 | 9.16e-1 | 0 | -4.87e-2 |
| HTP-c | CTUh | 7.62e-1 | 4.83e-3 | 5.13e-5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.35e-6 | 1.03e-10 | 0 | -3.70e-3 |
| HTP-nc | CTUh | 2.97e-2 | 4.03e-5 | 1.06e-6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.91e-5 | 6.97e-9 | 0 | -4.37e-3 |
| SQP | dimensionless | 3.54e-2 | 9.68e-4 | 1.21e-5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.46e-1 | 3.10e+0 | 0 | -7.74e+1 |
Resource Use Indicators
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PERE | MJ, net calorific value | 1.22e+2 | 1.10e-1 | 1.91e-3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.23e-3 | 2.83e-1 | 0 | -1.57e+1 |
| PERM | MJ, net calorific value | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| PERT | MJ, net calorific value | 1.22e+2 | 1.10e-1 | 1.91e-3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.23e-3 | 2.83e-1 | 0 | -1.57e+1 |
| PENRE | MJ, net calorific value | 4.58e+2 | 8.94e+0 | 1.39e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.80e-1 | 1.87e+0 | 0 | -8.42e+1 |
| PENRM | MJ, net calorific value | 6.99e+0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -6.99e+0 | 0 | -6.99e+0 |
| PENRT | MJ, net calorific value | 4.65e+2 | 8.94e+0 | 1.39e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.80e-1 | -5.12e+0 | 0 | -9.12e+1 |
| SM | kg | 2.84e+0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RSF | MJ, net calorific value | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NRSF | MJ, net calorific value | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RE | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| FW | m3 | 7.60e-1 | 1.09e-3 | 8.34e-5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.20e-5 | 7.43e-4 | 0 | -7.81e-2 |
Waste and Output Flow Indicators
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HWD | kg | 4.71e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NHWD | kg | 5.06e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RWD | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CRU | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MFR | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.00e+0 | 0 | 0 |
| MER | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| EEE | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| EET | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Carbon Emissions and Removals
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BCRP | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| BCEP | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| BCRK | kg CO2 | -1.81e+0 | 0 | 1.40e+0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| BCEK | kg CO2 | 0 | 0 | 3.99e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| BCEW | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CCE | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CCR | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CWNR | kg CO2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
ND = not declared. Life cycle modules: A1-A3 product stage, A4-A5 construction process, B use stage, C end of life, D benefits and loads beyond the system boundary.
Material composition
| Material/Component Category | Origin | % Mass |
|---|---|---|
| Stainless Steel | Europe | 49.6% |
| POM/POM-C | Europe | 2.5% |
| Polyamide | Europe | 1.3% |
| EPDM | Europe | 1.1% |
| Brass | Europe | 45.5% |
| Packaging material | Origin | Mass (kg) |
|---|---|---|
| Cardboard Box | Europe | 0.542 |
| PVC | 0.009 | |
| Polyethylene | 0.04 | |
| Paper | 0.001 |
| Biogenic carbon content | kg C per packaged product |
|---|---|
| Biogenic carbon content in product | 0 |
| Biogenic carbon content in accompanying packaging | 0.272 |
Hazardous substances
No regulated hazardous or dangerous substances are included in this product.
Product description
Underfloor heating manifolds products are used in hydronic systems to distribute mixed-temperature water to radiant heating system zones. This EPD represents a stainless steel flowmeter manifold with a 1" trunk size. Eleven sizes are available for this manifold. The sizes, two through twelve, represent the number of circuits in the model. Stainless steel manifolds are designed for radiant heating and snow melting application with water or water and glycol solutions. The declared unit of this EPD is 1 unit of the size 12 Stainless Steel Manifold HKV2013AF. The functional unit is 1 packaged product.
Interpretation
The analysis of Watts’ manifold products provides useful insights regarding the cradle-to-grave environmental impacts. The LCA results also identify where substantial impacts are occurring to allow further process and materials improvements to be implemented by the reporting company. The cradle-to-grave impacts for all products are dominated by the A1 Raw Material Stage, which contributes between 60-98% of impacts, depending on the impact category (with the 60% corresponding to ozone depletion, and 98% corresponding to total GHGs). The high contribution of A1 can be attributed to the use of many stainless steel and brass components, that require multiple processing steps prior to use in the manifolds. A3, Manufacturing, represents the next major contributor to impacts, and this is mainly driven by electricity use. Manufacturing contributes the most (~70%) to marine eutrophication.
LCIA results are relative expressions and do not predict impacts on category endpoints, the exceeding of thresholds, safety margins or risks. EPDs are comparable only when they follow the same PCR, functional unit and system boundary. The full EPD (PDF) contains the methodology, scenario assumptions and verification statement.