Environmental Product Declaration
M335M2-030 - Relief Valve
by Watts
Environmental Product Declaration (EPD) for M335M2-030 - Relief Valve, manufactured by Watts. Declaration SmartEPD-2024-023-0168-01.1, prepared according to UL Part B: Kitchen and Bath Fixture Fittings and Accessory Products, valid until October 24, 2029.
- Functional unit
- 1 unit of product 1 packaged product
- Valid until
- October 24, 2029
- PCR
- UL Part B: Kitchen and Bath Fixture Fittings and Accessory Products
Declaration details
- Manufacturer
- Watts
- Program operator
- Smart EPD
- Declaration number
- SmartEPD-2024-023-0168-01.1
- Date of issue
- October 24, 2024
- Valid until
- October 24, 2029
- Product category rules (PCR)
- UL Part B: Kitchen and Bath Fixture Fittings and Accessory Products (version 1)
- Standard
- ISO 14025:2006 and ISO 21930:2017
- Functional unit
- 1 unit of product 1 packaged product
- System boundary
- Cradle to grave (A1 - A3, A4, A5, B1 - B7, C1 - C4)
- Product specificity
- Product Specific
- Manufacturing specificity
- Facility Specific
- Manufacturing plant
- Franklin Manufacturing Plant (583 S Main St, Franklin, NH 03235, USA)
- Product category
- Plumbing › PlumbingEquipment
- Product SKU
- 0342692
- Product service life
- 20 years
- Verifier
- Gaspard Philis, LCA.no
- LCA software
- SimaPro 9.5
- Program instructions
- Smart EPD General Program Instructions v.1.0, November 2022
Life cycle assessment results
Results per 1 unit of product 1 packaged product.
Environmental Impact Assessment Results
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GWP-total | kg CO2 eq | 4.50e+0 | 3.52e-2 | 8.68e-5 | 0 | 0 | 2.60e-1 | 1.27e+1 | 0 | 0 | 0 | 0 | 7.03e-3 | 0 | 5.15e-3 |
| GWP-total | kg CO2 eq | 4.44e+0 | 3.47e-2 | 7.24e-5 | 0 | 0 | 2.31e-1 | 1.26e+1 | 0 | 0 | 0 | 0 | 6.94e-3 | 0 | 5.06e-3 |
| ODP | kg CFC 11 eq | 7.37e-8 | 5.82e-10 | 1.48e-13 | 0 | 0 | 6.84e-9 | 2.09e-7 | 0 | 0 | 0 | 0 | 1.16e-10 | 0 | 8.54e-11 |
| AP | kg SO2 eq | 1.47e-1 | 1.89e-4 | 5.33e-8 | 0 | 0 | 5.37e-4 | 4.14e-1 | 0 | 0 | 0 | 0 | 3.77e-5 | 0 | 3.62e-5 |
| EP-fw | kg N eq | 1.12e-1 | 3.59e-5 | 3.92e-7 | 0 | 0 | 1.24e-3 | 3.13e-1 | 0 | 0 | 0 | 0 | 7.18e-6 | 0 | 1.20e-5 |
| POCP | kg O3 eq | 6.30e-1 | 5.28e-3 | 1.23e-6 | 0 | 0 | 8.25e-3 | 1.78e+0 | 0 | 0 | 0 | 0 | 1.06e-3 | 0 | 5.69e-4 |
Resource Use Indicators
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PERE | MJ | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| PERM | MJ | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| PERT | MJ | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| PENRE | MJ | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| PENRM | MJ | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| PENRT | MJ | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| RPRE | MJ | 1.23e+1 | 6.29e-3 | 2.41e-6 | 0 | 0 | 1.32e+0 | 3.46e+1 | 0 | 0 | 0 | 0 | 1.26e-3 | 0 | 4.42e-3 |
| RPRM | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RPRT | MJ | 1.23e+1 | 6.29e-3 | 2.41e-6 | 0 | 0 | 1.32e+0 | 3.46e+1 | 0 | 0 | 0 | 0 | 1.26e-3 | 0 | 4.42e-3 |
| NRPRE | MJ | 7.21e+1 | 5.29e-1 | 1.22e-4 | 0 | 0 | 1.55e+0 | 2.04e+2 | 0 | 0 | 0 | 0 | 1.06e-1 | 0 | 8.57e-2 |
| NRPRM | MJ | 3.32e-1 | 0 | 0 | 0 | 0 | 0 | 9.30e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NRPRT | MJ | 7.24e+1 | 5.29e-1 | 1.22e-4 | 0 | 0 | 1.55e+0 | 2.05e+2 | 0 | 0 | 0 | 0 | 1.06e-1 | 0 | 8.57e-2 |
| ADP-fossil | MJ | 6.03e+0 | 6.98e-2 | 1.55e-5 | 0 | 0 | 1.59e-1 | 1.71e+1 | 0 | 0 | 0 | 0 | 1.40e-2 | 0 | 8.70e-3 |
| SM | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RSF | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NRSF | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| FW | m3 | 8.39e-5 | 0 | 0 | 0 | 0 | 0 | 2.35e-4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Waste and Output Flow Indicators
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HWD | kg | 7.51e-2 | 0 | 0 | 0 | 0 | 0 | 2.10e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NHWD | kg | 7.15e-3 | 0 | 0 | 0 | 0 | 0 | 2.00e-2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| RWD | kg | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| HLRW | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| ILLRW | kg | 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 |
| MFR | kg | 2.39e-1 | 0 | 0 | 0 | 0 | 0 | 6.69e-1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MER | kg | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| MNER | kg | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| EEE | MJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| EET | MJ | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
Carbon Emissions and Removals
| Indicator | Unit | A1-A3 | A4 | A5 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | C1 | C2 | C3 | C4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BCRP | kg CO2 | 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 |
| BCRK | kg CO2 | -3.84e-4 | 0 | 0 | 0 | 0 | -1.74e-1 | -1.08e-3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| BCEK | kg CO2 | 0 | 0 | 4.32e-4 | 0 | 0 | 4.35e-2 | 1.21e-3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| BCEW | kg CO2 | 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 |
| CCR | kg CO2 | 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 |
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 |
|---|---|---|
| Body_Brass | IT | 80 |
| Rivet_Brass | US | 4 |
| Bonnett_Steel | US | 3 |
| Washer_Steel | US | 2 |
| Disc Holder_Brass | US | 2 |
| Pull Rod_Brass | US | 2 |
| Adj Cap_Stainless Steel | US | 2 |
| Lever_Copper | US | 1 |
| Rivet_Brass | US | 1 |
| Bushing_C2600 | US | 1 |
| Nameplate_Aluminium | US | 1 |
| Packaging material | Origin | Mass (kg) |
|---|---|---|
| Paper | GLO | 0.00021 |
| Biogenic carbon content | kg C per unit |
|---|---|
| Biogenic carbon content in product | 0 |
| Biogenic carbon content in accompanying packaging | 0.000105 |
Hazardous substances
No regulated hazardous or dangerous substances are included in this product.
Scenarios
Transport to the building site (A4)
- Fuel type
- Diesel
- Vehicle type
- 16-32 metric ton, EURO3 Truck
- Transport distance
- 2700 km
- Capacity utilization
- 37%
- Weight of products transported
- 0.227 kg
- Packaging mass
- 0.0021 kg
End of life (C1-C4)
- Collected separately
- 0.227 kg
- Landfill
- 0.227 kg
Product description
Relief valves are designed to open at a preset pressure (or temperature) level and relieve the system when it has exceeded the desired level. The valve's relief of elevated liquid, gas, or steam pressures prevents damage to the system. This 3/4 inch pressure safety relief valve is used in commercial and industrial applications for low pressure, steam heating boilers and process equipment. It consists of a bronze body construction with NPT threaded male inlet and threaded female outlet (drain) connection, stainless steel spring, a top-guided stem, and a non-stick Teflon® disc-to-metal seating.
Interpretation
The analysis of Watts valve 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 Watts. The cradle-to-grave impacts for all products are dominated by the B4 replacement phase as ~2.8 declared units are needed to reach the 75 year building lifespan per the PCR requirement. This stage typically accounts for ~70% of the impacts throughout the products' lifecycle. After this the second largest contributor is the A1 Raw Materials Extraction and Processing stage. This stage accounts for ~10-20% of the lifecycle impacts. The A3 Manufacturing stage accounts for 5-10% of the impacts, with the other stages accounting for <1%.
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.