Praher Plastics K4 Montageanweisung Seite 23

Intermediate butterfly valve
Flanges are mounted on both sides of the butterfly valve
Operating pressure: PN10
Flange disassembly on one side
One-sided flange disassembly is possible at any time and has no influence on the
opposite connection side.
Temporary usage of butterfly valve with only one flange mounted possible.
ATTENTION: Reduction of pressure if used only with one flange:
 DN65 up to DN125
 DN150 up to DN200 
ATTENTION: After disassembling a flange on one side, the torque of the
screws on the mounted side has to be checked again (also see table with
torques for screws).
ATTENTION: Plant operator is responsible for the safety – safety first.
End-of-line valve
If used as end-of-line butterfly valve, a blind flange has to be mounted on the free
connection side.
ATTENTION: Plant operator is responsible for the safety – safety first.
www.praher-plastics.com
All manuals and user guides at all-guides.com
max. 6bar

max. 4bar
10