{
  "schemaVersion": "dolphin-centrifuge-technical-v1",
  "catalog": "https://dolphincentrifuge.com/technical-data/centrifuges.v1.json",
  "lastReviewed": "2026-08-28",
  "reviewedBy": {
    "id": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
    "name": "Sanjay Prabhu, M.S.M.E.",
    "role": "Owner and Chief Engineer",
    "profile": "https://dolphincentrifuge.com/authors/sanjay-prabhu/",
    "machineReadableProfile": "https://dolphincentrifuge.com/authors/sanjay-prabhu.json"
  },
  "methodology": {
    "capacitySourceOfTruth": "Original published L/h cells in the cited Alfa Laval capacity tables",
    "conversion": {
      "from": "L/h",
      "to": "US GPM",
      "formula": "L/h ÷ 227.124707",
      "decimalPlaces": 2
    },
    "rules": [
      "Never use or repeat the workbook GPM cells; several use inconsistent conversion factors.",
      "Always keep exact base machine, fluid, rating basis, viscosity, and temperature attached to a capacity.",
      "Dolphin DMB and DMPX names are commercial classes. They are not universal flow ratings.",
      "Never borrow a capacity across different base machines or fluids.",
      "No water capacity is inferred from diesel or fuel-oil data.",
      "Unknown specifications remain absent rather than inferred."
    ],
    "humanReadableUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
  },
  "model": {
    "id": "alfa-laval-whpx-409",
    "displayName": "Alfa Laval WHPX 409",
    "manufacturer": "Alfa Laval",
    "recordType": "oem-base-machine",
    "aliases": [
      "WHPX 409",
      "WHPX409",
      "WHPX-409"
    ],
    "canonicalPage": "https://dolphincentrifuge.com/alfa-laval-mopx-209-centrifuge/#whpx-409",
    "machineReadableRecord": "https://dolphincentrifuge.com/technical-data/alfa-laval-whpx-409.json",
    "specifications": {
      "cleaningMethod": {
        "value": "automatic partial-discharge / self-cleaning",
        "basis": "Dolphin-published machine specification",
        "evidenceClass": "first-party-owner-attestation",
        "publisher": "Dolphin Centrifuge",
        "sourceUrl": "https://dolphincentrifuge.com/alfa-laval-mopx-209-centrifuge/#whpx-409",
        "reviewedOn": "2026-08-28",
        "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
        "scopeNote": "Authoritative for the stated Dolphin machine or package configuration; separate from OEM capacity-table provenance."
      },
      "motorPower": {
        "value": 12.5,
        "unit": "HP",
        "basis": "Dolphin-published machine specification",
        "evidenceClass": "first-party-owner-attestation",
        "publisher": "Dolphin Centrifuge",
        "sourceUrl": "https://dolphincentrifuge.com/alfa-laval-mopx-209-centrifuge/#whpx-409",
        "reviewedOn": "2026-08-28",
        "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
        "scopeNote": "Authoritative for the stated Dolphin machine or package configuration; separate from OEM capacity-table provenance."
      },
      "voltage": {
        "values": [
          230,
          460
        ],
        "unit": "V",
        "phases": 3,
        "basis": "Dolphin-published machine specification",
        "evidenceClass": "first-party-owner-attestation",
        "publisher": "Dolphin Centrifuge",
        "sourceUrl": "https://dolphincentrifuge.com/alfa-laval-mopx-209-centrifuge/#whpx-409",
        "reviewedOn": "2026-08-28",
        "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
        "scopeNote": "Authoritative for the stated Dolphin machine or package configuration; separate from OEM capacity-table provenance."
      },
      "sludgeSpace": {
        "value": 1.3,
        "unit": "US gal",
        "basis": "Dolphin-published machine specification",
        "evidenceClass": "first-party-owner-attestation",
        "publisher": "Dolphin Centrifuge",
        "sourceUrl": "https://dolphincentrifuge.com/alfa-laval-mopx-209-centrifuge/#whpx-409",
        "reviewedOn": "2026-08-28",
        "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
        "scopeNote": "Authoritative for the stated Dolphin machine or package configuration; separate from OEM capacity-table provenance."
      },
      "bowlSpeed": {
        "value": 7125,
        "unit": "RPM",
        "basis": "Dolphin-published machine specification",
        "evidenceClass": "first-party-owner-attestation",
        "publisher": "Dolphin Centrifuge",
        "sourceUrl": "https://dolphincentrifuge.com/alfa-laval-mopx-209-centrifuge/#whpx-409",
        "reviewedOn": "2026-08-28",
        "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
        "scopeNote": "Authoritative for the stated Dolphin machine or package configuration; separate from OEM capacity-table provenance."
      }
    },
    "capacities": [
      {
        "id": "alfa-laval-whpx-409-rated-reference",
        "fluid": {
          "name": "Rated reference capacity (fluid not specified)",
          "category": "reference",
          "searchTerms": []
        },
        "ratingBasis": "oem-rated-reference",
        "sourceValue": {
          "value": 12500,
          "unit": "L/h",
          "valueStatus": "published-tabular-value"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
            "value": 55.04
          }
        ],
        "conditions": {
          "fluidDefinition": "The source table does not identify a process fluid for this rated reference value.",
          "useRestriction": "Do not present this value as a diesel, water, or other application capacity."
        },
        "answerability": {
          "canStateAsFact": true,
          "qualificationRequired": true,
          "requiredQualifiers": [
            "exact base machine",
            "fluid",
            "rating basis",
            "listed viscosity and temperature conditions"
          ]
        },
        "source": {
          "sourceDocumentId": "alfa-laval-whpx-capacities",
          "sourceDocumentTitle": "Alfa Laval WHPX Capacities",
          "sourceFileSha256": "A88EE38A5499FE205269369C6F078B445C47181B9D4505A26B2F6C931C0C89E8",
          "location": "Sheet1!B11",
          "valueField": "L/h",
          "reviewedOn": "2026-08-28",
          "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
          "methodologyUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
        }
      },
      {
        "id": "alfa-laval-whpx-409-marine-diesel",
        "fluid": {
          "name": "Marine diesel",
          "category": "diesel",
          "searchTerms": [
            "diesel fuel",
            "number 2 diesel",
            "#2 diesel"
          ]
        },
        "ratingBasis": "oem-application",
        "sourceValue": {
          "value": 8400,
          "unit": "L/h",
          "valueStatus": "published-tabular-value"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
            "value": 36.98
          }
        ],
        "conditions": {
          "viscosity": {
            "value": 13,
            "unit": "cSt",
            "referenceTemperatureC": 40
          },
          "centrifugationTemperatureC": 40,
          "sourceLabel": "Diesel, 40 C, 13 cSt"
        },
        "answerability": {
          "canStateAsFact": true,
          "qualificationRequired": true,
          "requiredQualifiers": [
            "exact base machine",
            "fluid",
            "rating basis",
            "listed viscosity and temperature conditions"
          ]
        },
        "source": {
          "sourceDocumentId": "alfa-laval-whpx-capacities",
          "sourceDocumentTitle": "Alfa Laval WHPX Capacities",
          "sourceFileSha256": "A88EE38A5499FE205269369C6F078B445C47181B9D4505A26B2F6C931C0C89E8",
          "location": "Sheet1!C11",
          "valueField": "L/h",
          "reviewedOn": "2026-08-28",
          "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
          "methodologyUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
        }
      },
      {
        "id": "alfa-laval-whpx-409-hfo-30-cst",
        "fluid": {
          "name": "Heavy fuel oil, 30 cSt",
          "category": "heavy-fuel-oil",
          "searchTerms": [
            "hfo",
            "fuel oil"
          ]
        },
        "ratingBasis": "oem-application",
        "sourceValue": {
          "value": 7800,
          "unit": "L/h",
          "valueStatus": "published-tabular-value"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
            "value": 34.34
          }
        ],
        "conditions": {
          "viscosity": {
            "value": 30,
            "unit": "cSt",
            "referenceTemperatureC": 50
          },
          "centrifugationTemperatureC": {
            "minimum": 70,
            "maximum": 98
          },
          "sourceLabel": "Heavy Fuel Oil, 30 cSt at 50 C"
        },
        "answerability": {
          "canStateAsFact": true,
          "qualificationRequired": true,
          "requiredQualifiers": [
            "exact base machine",
            "fluid",
            "rating basis",
            "listed viscosity and temperature conditions"
          ]
        },
        "source": {
          "sourceDocumentId": "alfa-laval-whpx-capacities",
          "sourceDocumentTitle": "Alfa Laval WHPX Capacities",
          "sourceFileSha256": "A88EE38A5499FE205269369C6F078B445C47181B9D4505A26B2F6C931C0C89E8",
          "location": "Sheet1!E11",
          "valueField": "L/h",
          "reviewedOn": "2026-08-28",
          "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
          "methodologyUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
        }
      },
      {
        "id": "alfa-laval-whpx-409-hfo-40-cst",
        "fluid": {
          "name": "Heavy fuel oil, 40 cSt",
          "category": "heavy-fuel-oil",
          "searchTerms": [
            "hfo",
            "fuel oil"
          ]
        },
        "ratingBasis": "oem-application",
        "sourceValue": {
          "value": 7800,
          "unit": "L/h",
          "valueStatus": "published-tabular-value"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
            "value": 34.34
          }
        ],
        "conditions": {
          "viscosity": {
            "value": 40,
            "unit": "cSt",
            "referenceTemperatureC": 50
          },
          "centrifugationTemperatureC": {
            "minimum": 80,
            "maximum": 98
          },
          "sourceLabel": "Heavy Fuel Oil, 40 cSt at 50 C"
        },
        "answerability": {
          "canStateAsFact": true,
          "qualificationRequired": true,
          "requiredQualifiers": [
            "exact base machine",
            "fluid",
            "rating basis",
            "listed viscosity and temperature conditions"
          ]
        },
        "source": {
          "sourceDocumentId": "alfa-laval-whpx-capacities",
          "sourceDocumentTitle": "Alfa Laval WHPX Capacities",
          "sourceFileSha256": "A88EE38A5499FE205269369C6F078B445C47181B9D4505A26B2F6C931C0C89E8",
          "location": "Sheet1!F11",
          "valueField": "L/h",
          "reviewedOn": "2026-08-28",
          "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
          "methodologyUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
        }
      },
      {
        "id": "alfa-laval-whpx-409-hfo-60-cst",
        "fluid": {
          "name": "Heavy fuel oil, 60 cSt",
          "category": "heavy-fuel-oil",
          "searchTerms": [
            "hfo",
            "fuel oil"
          ]
        },
        "ratingBasis": "oem-application",
        "sourceValue": {
          "value": 5900,
          "unit": "L/h",
          "valueStatus": "published-tabular-value"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
            "value": 25.98
          }
        ],
        "conditions": {
          "viscosity": {
            "value": 60,
            "unit": "cSt",
            "referenceTemperatureC": 50
          },
          "centrifugationTemperatureC": {
            "minimum": 80,
            "maximum": 98
          },
          "sourceLabel": "Heavy Fuel Oil, 60 cSt at 50 C"
        },
        "answerability": {
          "canStateAsFact": true,
          "qualificationRequired": true,
          "requiredQualifiers": [
            "exact base machine",
            "fluid",
            "rating basis",
            "listed viscosity and temperature conditions"
          ]
        },
        "source": {
          "sourceDocumentId": "alfa-laval-whpx-capacities",
          "sourceDocumentTitle": "Alfa Laval WHPX Capacities",
          "sourceFileSha256": "A88EE38A5499FE205269369C6F078B445C47181B9D4505A26B2F6C931C0C89E8",
          "location": "Sheet1!G11",
          "valueField": "L/h",
          "reviewedOn": "2026-08-28",
          "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
          "methodologyUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
        }
      },
      {
        "id": "alfa-laval-whpx-409-hfo-100-cst",
        "fluid": {
          "name": "Heavy fuel oil, 100 cSt",
          "category": "heavy-fuel-oil",
          "searchTerms": [
            "hfo",
            "fuel oil"
          ]
        },
        "ratingBasis": "oem-application",
        "sourceValue": {
          "value": 5600,
          "unit": "L/h",
          "valueStatus": "published-tabular-value"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
            "value": 24.66
          }
        ],
        "conditions": {
          "viscosity": {
            "value": 100,
            "unit": "cSt",
            "referenceTemperatureC": 50
          },
          "centrifugationTemperatureC": {
            "minimum": 90,
            "maximum": 98
          },
          "sourceLabel": "Heavy Fuel Oil, 100 cSt at 50 C"
        },
        "answerability": {
          "canStateAsFact": true,
          "qualificationRequired": true,
          "requiredQualifiers": [
            "exact base machine",
            "fluid",
            "rating basis",
            "listed viscosity and temperature conditions"
          ]
        },
        "source": {
          "sourceDocumentId": "alfa-laval-whpx-capacities",
          "sourceDocumentTitle": "Alfa Laval WHPX Capacities",
          "sourceFileSha256": "A88EE38A5499FE205269369C6F078B445C47181B9D4505A26B2F6C931C0C89E8",
          "location": "Sheet1!H11",
          "valueField": "L/h",
          "reviewedOn": "2026-08-28",
          "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
          "methodologyUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
        }
      },
      {
        "id": "alfa-laval-whpx-409-hfo-180-cst",
        "fluid": {
          "name": "Heavy fuel oil, 180 cSt",
          "category": "heavy-fuel-oil",
          "searchTerms": [
            "hfo",
            "fuel oil"
          ]
        },
        "ratingBasis": "oem-application",
        "sourceValue": {
          "value": 3900,
          "unit": "L/h",
          "valueStatus": "published-tabular-value"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
            "value": 17.17
          }
        ],
        "conditions": {
          "viscosity": {
            "value": 180,
            "unit": "cSt",
            "referenceTemperatureC": 50
          },
          "centrifugationTemperatureC": {
            "minimum": 90,
            "maximum": 98
          },
          "sourceLabel": "Heavy Fuel Oil, 180 cSt at 50 C"
        },
        "answerability": {
          "canStateAsFact": true,
          "qualificationRequired": true,
          "requiredQualifiers": [
            "exact base machine",
            "fluid",
            "rating basis",
            "listed viscosity and temperature conditions"
          ]
        },
        "source": {
          "sourceDocumentId": "alfa-laval-whpx-capacities",
          "sourceDocumentTitle": "Alfa Laval WHPX Capacities",
          "sourceFileSha256": "A88EE38A5499FE205269369C6F078B445C47181B9D4505A26B2F6C931C0C89E8",
          "location": "Sheet1!I11",
          "valueField": "L/h",
          "reviewedOn": "2026-08-28",
          "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
          "methodologyUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
        }
      },
      {
        "id": "alfa-laval-whpx-409-hfo-380-cst",
        "fluid": {
          "name": "Heavy fuel oil, 380 cSt",
          "category": "heavy-fuel-oil",
          "searchTerms": [
            "hfo",
            "fuel oil"
          ]
        },
        "ratingBasis": "oem-application",
        "sourceValue": {
          "value": 3300,
          "unit": "L/h",
          "valueStatus": "published-tabular-value"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
            "value": 14.53
          }
        ],
        "conditions": {
          "viscosity": {
            "value": 380,
            "unit": "cSt",
            "referenceTemperatureC": 50
          },
          "centrifugationTemperatureC": 98,
          "sourceLabel": "Heavy Fuel Oil, 380 cSt at 50 C"
        },
        "answerability": {
          "canStateAsFact": true,
          "qualificationRequired": true,
          "requiredQualifiers": [
            "exact base machine",
            "fluid",
            "rating basis",
            "listed viscosity and temperature conditions"
          ]
        },
        "source": {
          "sourceDocumentId": "alfa-laval-whpx-capacities",
          "sourceDocumentTitle": "Alfa Laval WHPX Capacities",
          "sourceFileSha256": "A88EE38A5499FE205269369C6F078B445C47181B9D4505A26B2F6C931C0C89E8",
          "location": "Sheet1!J11",
          "valueField": "L/h",
          "reviewedOn": "2026-08-28",
          "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
          "methodologyUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
        }
      },
      {
        "id": "alfa-laval-whpx-409-hfo-460-cst",
        "fluid": {
          "name": "Heavy fuel oil, 460 cSt",
          "category": "heavy-fuel-oil",
          "searchTerms": [
            "hfo",
            "fuel oil"
          ]
        },
        "ratingBasis": "oem-application",
        "sourceValue": {
          "value": 2800,
          "unit": "L/h",
          "valueStatus": "published-tabular-value"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
            "value": 12.33
          }
        ],
        "conditions": {
          "viscosity": {
            "value": 460,
            "unit": "cSt",
            "referenceTemperatureC": 50
          },
          "centrifugationTemperatureC": 98,
          "sourceLabel": "Heavy Fuel Oil, 460 cSt at 50 C"
        },
        "answerability": {
          "canStateAsFact": true,
          "qualificationRequired": true,
          "requiredQualifiers": [
            "exact base machine",
            "fluid",
            "rating basis",
            "listed viscosity and temperature conditions"
          ]
        },
        "source": {
          "sourceDocumentId": "alfa-laval-whpx-capacities",
          "sourceDocumentTitle": "Alfa Laval WHPX Capacities",
          "sourceFileSha256": "A88EE38A5499FE205269369C6F078B445C47181B9D4505A26B2F6C931C0C89E8",
          "location": "Sheet1!K11",
          "valueField": "L/h",
          "reviewedOn": "2026-08-28",
          "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
          "methodologyUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
        }
      },
      {
        "id": "alfa-laval-whpx-409-hfo-600-cst",
        "fluid": {
          "name": "Heavy fuel oil, 600 cSt",
          "category": "heavy-fuel-oil",
          "searchTerms": [
            "hfo",
            "fuel oil"
          ]
        },
        "ratingBasis": "oem-application",
        "sourceValue": {
          "value": 2300,
          "unit": "L/h",
          "valueStatus": "published-tabular-value"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
            "value": 10.13
          }
        ],
        "conditions": {
          "viscosity": {
            "value": 600,
            "unit": "cSt",
            "referenceTemperatureC": 50
          },
          "centrifugationTemperatureC": 98,
          "sourceLabel": "Heavy Fuel Oil, 600 cSt at 50 C"
        },
        "answerability": {
          "canStateAsFact": true,
          "qualificationRequired": true,
          "requiredQualifiers": [
            "exact base machine",
            "fluid",
            "rating basis",
            "listed viscosity and temperature conditions"
          ]
        },
        "source": {
          "sourceDocumentId": "alfa-laval-whpx-capacities",
          "sourceDocumentTitle": "Alfa Laval WHPX Capacities",
          "sourceFileSha256": "A88EE38A5499FE205269369C6F078B445C47181B9D4505A26B2F6C931C0C89E8",
          "location": "Sheet1!L11",
          "valueField": "L/h",
          "reviewedOn": "2026-08-28",
          "reviewedBy": "https://dolphincentrifuge.com/authors/sanjay-prabhu/#person",
          "methodologyUrl": "https://dolphincentrifuge.com/technical-data/#methodology"
        }
      },
      {
        "id": "alfa-laval-whpx-409-cross-head-ro-lube-oil",
        "fluid": {
          "name": "Cross-head R&O lube oil",
          "category": "lube-oil",
          "searchTerms": [
            "crosshead R&O oil",
            "cross-head rust and oxidation oil"
          ]
        },
        "ratingBasis": "oem-application-range",
        "sourceValue": {
          "minimum": 3800,
          "maximum": 4400,
          "unit": "L/h",
          "valueStatus": "published-tabular-range",
          "originalCellText": "3800-4400"
        },
        "derivedConversions": [
          {
            "unit": "US GPM",
            "derived": true,
            "formula": "L/h ÷ 227.124707",
            "rounding": {
              "decimalPlaces": 2,
              "method": "nearest"
            },
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}