Flowserve CB 1 - Manual (Page 10)

10
Function
Scope of supply
Explanatory Notes
CB 14
1 Swing flap non-return valve CB 14
1 Installation manual
CB 24 S
1 Swing flap non-return valve CB 24 S
1 Installation manual
CB 26
1 Swing flap non-return valve CB 26
1 Installation manual
CB 26 A
1 Swing flap non-return valve CB 26 A
1 Installation manual
Description
The CB 1.../CB 2... are very compact swing flap non-return valves used to prevent the backflow of
fluids. The flap opens and closes automatically as a function of the direction of flow, thus ensuring
unidirectional flow of the fluid. The opening pressure and closing time can be matched to the
application in question by adjusting the spring characteristic. However, this does not apply to CB 14
since this valve is not fitted with a spring. Installation in horizontal or vertical upward flow lines, with
due regard to our installation recommendations.
The CB 1.../CB 2... are equipped with an eyebolt for ease of installation and transport.
Please note that dual-plate check valves should not be used on reciprocating compressor, piston
pumps or where pulsating flow exists.
As the pressure and volume flow rise, the opening angle of the flap increases symmetrically. If
centrifugal pumps are installed upstream of the valve it becomes necessary to arrange for a defined
stabilizing section. Installation in horizontal or vertical upward flow lines, with due regard to our
installation recommendations.
Please observe our installation recommendations outlined in the following pages.