3" Cryogenic Vent Stack with Changeable Terminations

{
  "id": "012525-2026",
  "tag": [
    "tender"
  ],
  "date": "2026-02-11T15:18:32Z",
  "ocid": "ocds-h6vhtk-064e2b",
  "buyer": {
    "id": "GB-PPON-PBXM-4389-TXVZ",
    "name": "Health and Safety Executive"
  },
  "tender": {
    "id": "T4879",
    "lots": [
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        "value": {
          "amount": 25000,
          "currency": "GBP",
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            "description": "Pipeline, piping, pipes, casing, tubing and related items"
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    ],
    "title": "3\" Cryogenic Vent Stack with Changeable Terminations",
    "value": {
      "amount": 25000,
      "currency": "GBP",
      "amountGross": 30000
    },
    "status": "active",
    "documents": [
      {
        "id": "012525-2026",
        "url": "https://www.find-tender.service.gov.uk/Notice/012525-2026",
        "format": "text/html",
        "noticeType": "UK4",
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        "documentType": "tenderNotice",
        "datePublished": "2026-02-11T15:18:32Z"
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    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "description": "HSE require a 3\" vent stack for use with cryogenic hydrogen for an experimental programme. The vent must have interchangeable terminations (miter cut, bullhorn, lambda) which may be on a flanged connection or otherwise joined.\nThe vent stack should be 4 m tall and terminate in a 3\" ANSI Class 300 flange. 0.5 m from the top there should be two bosses with ¼\" BSP female fittings and another boss with a 7/16\" UNJF female fitting.  The vent stack must have a maximum allowable working pressure of 40 barg.\nThe vent stack should have a manual drain valve at the bottom of the stack which is spring loaded (normally closed).\n1.5 m from the bottom of the vent stack should be a 3\" ANSI flange connection and a 1½\" ANSI flange connection. Both these flanges must be Class 300.\nThe vent should come with 3 interchangeable termination designs which are on 3\" ANSI Class 300 flanges to attach to the top of the vent stack. Suitable gaskets and torque values/calculations for all flanges should be provided.  See In-tend for full requirements",
    "tenderPeriod": {
      "endDate": "2026-03-06T13:00:00Z"
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    "submissionMethodDetails": "All tender documents are available via the HSE In-Tend supplier e-procurement portal. All responses and requests for clarification must be submitted via the portal. Registration is free of charge and can be completed via the following link:\nhttps://in-tendhost.co.uk/hse",
    "procurementMethodDetails": "Below threshold - open competition"
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    {
      "id": "GB-PPON-PBXM-4389-TXVZ",
      "name": "Health and Safety Executive",
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        "buyer"
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        "region": "UKD73",
        "country": "GB",
        "locality": "Liverpool",
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        "countryName": "United Kingdom",
        "streetAddress": "Redgrave Court, Merton Road, Bootle, Merseyside"
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  "language": "en",
  "initiationType": "tender"
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