Direct Answer
A jockey pump sensing line tells the controller what system pressure it is monitoring. This guide helps contractors and project teams review a drawing or test plan without treating a generic article as an approval document.
1. Start With the Project Drawing
Use the approved project drawing to identify water source, main fire pump, jockey branch, controller, valves, and test path. A supplier layout defines package scope; it does not replace the engineer’s system drawing.
| Review item | What to confirm |
|---|---|
| Pressure reference | The intended system point is clear. |
| Controller input | Signal matches the project sequence. |
| Isolation and test access | Maintenance path is defined. |
2. Check the Main and Jockey Duties
The main pump serves required fire-flow duty. The jockey pump maintains pressure against small losses and should not be treated as the main fire-flow machine.
3. Review Controller Signals
Verify the pressure reference, controller connection, and intended start sequence against the project documents. Exact setpoints are project-specific and must not be inferred from a generic drawing.
| Signal | Review boundary |
|---|---|
| Minor pressure decay | Jockey response is reviewed first. |
| Continued pressure drop | Main fire-pump sequence follows project documents. |
| Test condition | Use documented procedure and records. |
4. Confirm Test and Drain Paths
The layout should show test points, drain paths, gauges, and isolation needed for the project procedure. Do not omit site safety and authority requirements.
5. Review Package Supply Scope
List supplied pumps, drivers, controllers, valves, instruments, documents, and field connections. This avoids treating a package quotation as a complete site installation.
6. RFQ and Documentation Checklist
| Information | Purpose |
|---|---|
| Required flow and pressure | Defines fire-pump duty. |
| Water source | Defines suction interface. |
| Controller requirement | Defines signals and scope. |
| Requested documents | Defines commercial boundary. |
For fire pump package discussion, send verified project data through contact Borra.
7. Fit Boundary
This guide does not certify a fire-protection system or claim UL, FM, NFPA, or local approval. Final acceptance requires the applicable project documents, authorities, and verified product evidence.
FAQ
Can a supplier drawing replace the engineer drawing?
No. It explains package scope but not the accepted project system.
What does a jockey pump sensing line do?
It provides the controller with the pressure reference for its maintenance duty.
What should testing records include?
Use the project procedure, controller documentation, and required authority records.
Is the jockey pump the main fire-flow pump?
No. It maintains pressure for small losses.
Can this guide approve a package?
No. Approval requires project-specific review.
What should be sent for quotation?
Send flow, pressure, source, driver, controller, connections, documents, and destination.