Test and Drain Valve
A test and drain valve combines an orificed test line that simulates the flow of a single sprinkler with a drain line that empties the zone in one body. Turning the handle to test proves that the flow switch and alarm system work.
According to the manufacturer catalogue it comes in 1″–2″, 300 psi class, with threaded or grooved ends. The store offers K57, K80, K200 and K360 orifices; the orifice is chosen by the K-factor of the smallest sprinkler in the zone.
Main Applications
- Sprinkler zone flow tests
- Flow switch and alarm checks
- Zone draining and maintenance
- Floor and riser test stations
- Commissioning tests of fire lines
Technical Data
| Function | Test (orificed) and drain, single handle |
|---|---|
| Size | 1″, 1¼”, 1½”, 2″ (product range) |
| Connection | Threaded or grooved (manufacturer catalogue) |
| Pressure class | 300 psi (manufacturer catalogue) |
| Orifice K-factor | K57, K80, K200, K360 (product range) |
| Positions | Off, test, drain |
| Sight glass | Flow sight glass (by model) |
| Body | By model |
Material Options
| Part | Threaded type | Grooved type |
|---|---|---|
| Body | By model | By model |
| Connection | Female thread | Coupling groove |
| Orifice | By K-factor | By K-factor |
| Sealing | By model | By model |
Which material? The orifice is matched to the smallest K-factor sprinkler in the zone, so the test realistically simulates the opening of a single sprinkler.
Advantages
Two Jobs, One Valve
- Test and drain in the same body
Realistic Test
- Orifice simulates a single sprinkler flow
Visual Check
- Flow visible through a sight glass (by model)
Easy Maintenance
- Zone drained from one point
Construction and Design Features
- Single handle with three positions (off, test, drain)
- Interchangeable orifice
- Threaded or grooved inlet and outlet
- Sight window to watch the flow (by model)
Write the zone pipe size and sprinkler K-factor; we will confirm the right orificed test and drain valve.
How to Choose?
- Set the zone sizeWrite the pipe size at the test point.
- Choose the K-factorBase it on the smallest sprinkler K in the zone.
- Select the connectionUse grooved on grooved lines and threaded on threaded lines.
- Plan the drain lineConnect the outlet to a visible drain.
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Why ORFA?
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Details →Get a quote for your project
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