Backflow Prevention
Datasheet constraints: every range, checkbox and listbox field now states its direction
Showing changes from Rev 6
to Rev 7
in Backflow Prevention.
---
title: Backflow Prevention
…99 unchanged lines
- "Outdoor enclosure product data"
- "Assembly installation drawings"
+constraint: all_of
```
…19 unchanged lines
- "Required test report form"
- "Seismic restraint calculations or detail"
+constraint: all_of
```
…21 unchanged lines
- "Warranty documentation"
- "Spare parts receipt"
+constraint: all_of
```
…188 unchanged lines
```datasheet
−label: Maximum Pressure Loss at Design Flow
+label: Pressure Loss at Design Flow
type: range
unit: psi
…2 unchanged lines
max: 20
step: 0.5
+constraint: max
```
…161 unchanged lines
```datasheet
−label: Maximum Centerline Height Above Floor or Grade
+label: Centerline Height Above Floor or Grade
type: range
unit: in
…3 unchanged lines
setpoints: [30, 36, 42, 48, 60, 72]
default: 60
+constraint: max
```
…174 unchanged lines
setpoints: [3, 6, 12]
default: 12
+constraint: max
```
…88 unchanged lines
max: 10
setpoints: [1, 2, 3, 5, 10]
+constraint: min
```
…36 unchanged lines
- "Check valve rebuild kits"
- "Relief valve rebuild kits"
+constraint: all_of
```
## Spare parts shall be delivered in the manufacturer's sealed packaging marked with the part number, the models they fit, and the date of manufacture, and no elastomer kit older than two years at delivery shall be accepted.
## The Contractor shall obtain the Owner's signed receipt for the spare parts delivered.