JOCKEY PUMP SELECTIONJockey pump selection: flow, pressure and control settings
A practical guide to leakage-based sizing and pressure coordination, with worked examples and a downloadable PDF.
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Source-linked standards updates and practical engineering articles concerning UL, FM and fire pump projects.
TECHNICAL EDITORIAL
Published for this website on 19 October 2026. Standards updates identify the source revision date; they are not announcements of new Pumpsense product approvals.
JOCKEY PUMP SELECTION
FM GUIDANCEFM 2-81: what the April 2026 update means for fire pump owners
A new explanation of diesel churn-test duration, and a practical review point for maintenance teams.
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UL 448UL 448 standards watch: published revisions versus proposals
Understanding the September 2025 revision record and why a later proposal is not an adopted requirement.
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UL / FM EXPLAINEDUL Listed, FM Approved and NFPA 20: three different questions
Product certification, approval and installation requirements are related, but they are not interchangeable.
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BUYER CHECKLISTHow to check a fire pump UL or FM record before ordering
A purchasing checklist that connects the quotation, the certification record and the equipment supplied.
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INSTALLATIONFrom certification to commissioning: the installation still matters
Why the pump room, suction arrangement, driver and acceptance documentation deserve the same attention as the product certificate.
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