WS L-BOXX® 136 + pre-cut foam + cover inlay
1x differential pressure gauge 0-1 bar (overload capacity up to 25 bar)
1x pressure gauge 0-10 bar with plug-in sleeve
3x test valve with plug nipple ET DN 8 (1/4”)
3x test valve with plug nipple ET DN 15 (1/2”)
1x test valve with plug nipple IT DN 25 (3/4”)
3x plug nipple ET DN 15 (1/2”)
3x plug nipple ET DN 8 (1/4”)
2x pressure hose (1 m) with 2 plug-in sleeves
2x relief hose (0.5 m) with one plug-in sleeve
1x block maintenance stickers (50 pieces)
1x operating instructions
• For annual functional testing of all standard backflow preventers BA and CA as per DIN 1717
• Rotatable connections which allow differential pressure gauge to remain in the box during measurement
In order to protect the public drinking water supply, tapping points must be safeguarded with a system separator.
The system separator must be checked annually to ensure that it is functioning properly.
This check can easily be combined with the annual heating service and can be completed in just a few minutes.
This test kit designed for the service engineer should be part of the equipment carried by any service vehicle.