Install Diaphragm Valve Diastar - GF DIASTAR Betriebsanleitung

Installation
6.2

Install diaphragm valve DIASTAR

CAUTION
Fixation of the diaphragm valve!
Due to temperature changes, longitudinal or lateral forces may occur if
thermal expansion is constrained.
 Absorb forces via respective fixed points in front or after the valve.
Operation of a valve causes reactive forces which could damage the valve
 Mount the diaphragm valve as a fixed point with the designated fastener
or reinforce the piping directly before and after the diaphragm valve with
suitable supports.
Superimposed loadings could damage the diaphragm valve.
 Diaphragm valve and piping must be aligned
True Union Design
All materials with valve body type 514
 Loosen the union nut and push them toward the designated piping end.
 Depending on the type of piping end, connecting parts are cemented, screwed or
welded. The Georg Fischer Planning Fundamentals include additional
information.
 Diaphragm valve is then positioned between the connecting parts.
 Manually tightened the union nuts.
Cement connections
PVC-U, PVC-C and ABS - types 514, 515
 Only identical materials may be joined together.
 Pipe sections with solvent cement connections should be rinsed unpressurized
with water after the drying time (see chapter jointing methods in the Georg
Fischer Planning Fundamentals).
Fusion connections
PP-H, PP-n, PVDF, PVDF-HP – types 514, 515, 519
 Only identical materials may be joined together (see chapter jointing methods in
the Georg Fischer Planning Fundamentals).
Flange connections
All materials with valve body type 517
 The tightening torque can be found in further chapters in the Georg Fischer
Planning Fundamentals.
Instruction Manual
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