How it operates
The piping normally stays dry. A detection event controls water admission, while the exact discharge sequence depends on the selected single- or double-interlock arrangement and sprinkler operation.
Preaction sprinkler system? Start with a free site assessment.
Detection and release controls govern when water enters normally dry piping. We assess the site, define the operating sequence, then handle installation, testing, commissioning and follow-up.
- Controlled water admissionRelease logic defined for the site
- Detection coordinationAlarm and sprinkler systems aligned
- Complete project supportDesign through maintenance
Is a preaction system right for your site?
Preaction adds detection, supervision and release controls before water enters the piping. That extra control is useful only when the risk and approved design justify the added complexity.
Where it fits
Often considered for data, records, control, equipment and other water-sensitive or critical areas where unintended water admission needs additional control.
What we check
Required interlock logic, detection coverage, supervisory air, valve trim, water supply, sprinkler layout, alarm interfaces, testing access and the approved sequence of operation.
From
assessment
to
handover.
We review the site, hazards, water supply and plans before defining the sprinkler-system scope and project sequence.
01
Site assessment
We review the property, current conditions, available plans and the project requirements.
02
Design & planning
We define the proposed system, layout, materials and installation scope for review.
03
Review quotation
We discuss the proposed scope, inclusions, commercial terms and any questions before approval.
04
Supply & installation
Materials, equipment and site work are coordinated against the agreed project scope.
05
Testing & commissioning
The completed installation is tested and commissioned according to the approved scope.
06
Service + BFP follow-up
We remain available to maintain the project documents and BFP-related follow-up within our scope.
Preaction installed?
Keep every control ready.
Preventive maintenance covers more than the sprinkler piping. We review the detection, supervision and release components included in the installed preaction arrangement and agreed scope.
- 01
Review the preaction valve, trim, supervisory air, piping and visible sprinkler conditions.
- 02
Check the agreed detection, alarm, interlock and release sequence functions.
- 03
Document impairments, leakage, supervisory issues and corrective work that may be needed.
- 04
Provide service records and BFP-related follow-up connected to our scope.
Preaction systems,
made clear.
Straight answers about detection, release logic, suitable areas, system selection, maintenance and project information.
It is an automatic sprinkler system whose piping normally remains dry. A separate detection and release arrangement controls when water is admitted to the piping, while discharge follows the designed operating sequence.
Wet pipe systems keep water in the piping. Preaction systems add detection and release controls before water enters normally dry piping, which also means more components must be designed, tested and maintained.
The required events before water enters the piping differ. The appropriate sequence depends on the hazard, site operation and approved design, so it must be defined during planning rather than selected from a generic price list.
It may be considered for data, records, equipment and other water-sensitive or critical areas where additional control over water admission is justified. It is not automatically required for every sensitive room.
Yes. The scope can include the preaction valve and trim, supervisory air, detection interfaces, alarms, sprinkler piping and the operating-sequence tests appropriate to the installed system.
Send the contact person, company, site location, whether this is a new installation or an existing system, and any plans, sequence of operation, specifications, bill of quantities or BFP comments available.
Tell us about your
preaction project.
Send the site location, whether this is a new installation or an existing system, and any available plans or specifications. We’ll review the details and contact you about the site assessment and next steps.