Flowserve Butterfly Valve - Manual (Page 6)

6
2.0 INSTALLATION OF VALVE ASSEMBLY
This valve is shipped in the closed position.
In handling of the valve assembly, care should be taken to protect flange sealing
surfaces and disc sealing surfaces from abrasion. The assembly should be carefully
lifted by an adequately rated hoist utilizing nylon lifting straps or slings, or mount yoke
vertical lifting eye bolts. The approximate weight of the complete valve assembly is
shown on drawing. There are no special tools required to properly position and install
the valve assembly. Standard wrenches, mallets, alien drives, rigging, etc. are all that is
necessary to achieve successful installation.
The valve assembly is designed to be assembled between two (2) ANSI pipe flanges,
using flange gaskets compatible with operational conditions.
3.0
OPERATION
Before valve operation, this manual should be reviewed and understood, especially
Subsection 1.0 of Section II. Operational problems and their solutions are addressed in
Subsection 6.0 of Section II.
Following installation and check-out (Subsection 2.1 of Section II) the valve may be
actuated.
4.0
DISASSEMBLY INSTRUCTIONS
4.1 Valve / Actuator Disassembly Instructions
CAUTION
Any Disassembly of the actuator from the valve must be done with the valve
vertically upright as shown on drawing.
(A) Securely support Valve/Actuator Assembly in a manner which protects
body seal faces, preferably by bolting to mount fixture through pipe mount
holes in valve body (if holes are provided).
(B) Cycle Actuator to preferred valve position.