Install Diaphragm Valve Diastar - GF DIASTAR Serie Manual Instrucciones

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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