- pressure rating PN 10
- max. operating temperature 60 °C
- short-term peak temperature 65 °C
FK-4 RPZ backflow preventer outlet type BA
figure 367 01 025
- to protect drinking water against backflow of fluids up to and including category 4 according DIN EN 1717 / DIN 1988-100
- suitable for connection to the elbow wallplates
- wetted metal parts made from dezincification-free and corrosion-resistant gunmetal, resistant against aggressive water
Product Features
- to protect drinking water against backflow of fluids up to and including category 4 according DIN EN 1717 / DIN 1988-100
- suitable for connection to the elbow wallplates
- wetted metal parts made from dezincification-free and corrosion-resistant gunmetal, resistant against aggressive water
- inlet male pipe thread
- gunmetal cone
- EPDM-seat gasket
- with stainless steel mesh at inlet
- integrated differential pressure controlled and low-maintenance protection cartridge including CV
- with controllable reduced pressure zone
- test ports for connection of test valves for maintenance
- plastic drain connection according EN 1717
- with a black handwheel
- free from dead spots
- for horizontal installation, drain valve down
- with isolating function for maintenance
- discharge side G 1 1/4 according to ISO 228 for the connection of a hose coupling
- Open position indicator
- maintenance requirements in accordance with DIN EN 806-5 must be complied with
Standards & approvals
- DVGW approval
- KIWA approval
- BELGAQUA approval
- VA approval
- according to DVGW W 408
- according to accepted materials list from German environmental agency
- soundproofing certification according to DIN EN ISO 3822 Class 2
- DIN EN 10226 / EN 1717
Technical data
| Part no. | DN | A1 | A2 | A3 | D1 (mm) |
D2 (mm) |
H1 (mm) |
H2 (mm) |
L1 (mm) |
L2 (mm) |
L3 (mm) |
nominal connection diameter, waste water (mm) |
kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3670102500 | 25 | G 1 | G 1 1/4 | G 1/4 | 70 | 50 | 195.5 | 37 | 57.5 | 101.5 | 86 | 50 | 1.65 |
CAD models
| Part no. | DN | CAD model |
|---|---|---|
| 3670102500 | 25 | Show 3D data |
Planning data
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