Instruction and Operation Manual
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valves use ring joint metal gasket.
6.2.4
Cone sealing is used for the valve and the seal material is selected to API 600 or to the
customer requirements
.
6.2.5
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7.
Valve Transportation
Valves are heavy and metal products, care shall be taken to avoid physical injury during
transportation
. Cord and lift device and transportation tool shall be ready, valve package
inspected and broken package repaired
. Packaging shall conform to specification
requirements
, it is forbidden to rotate the hand-wheel when valve is packaged. Valve shall be in
full-close status
. For mis-opened valve, the sealing surface shall be cleaned and valve re-closed
and ends of bore blocked
. Actuator and valve shall be packaged
separately
.
During transportation or lifting, cord shall be tied to the yoke, no tied to the hand-wheel or stem.
Valve shall be handled with care, no bump to other thing.
The paint, nameplate and flange sealing surface shall be protected during transportation,no drag
valve on the ground especially with the end sealing surface contacted the ground
.Don't unpack
when the valve is not ready for installation at the construction field
. The valve shall be placed at a
safety location against weather
.
8.
Valve Storage
8.1
Valve shall be stored in air and dry room with bore blanked for protection.
8.2
Long-time-stored valve shall be re-inspected prior to use. Close attention shall be paid
against sealing damage when removal of dirties for the cleanness of sealing surface. Of
necessary
, valve shall be pressure tested once more.
9.
Valve Installation
9.1
Carefully check valve identification against valve specifications before installation. Always
keep the fluid flow direction with the arrow identified on the body
.
9.2
Check the inside of bore and the sealing surface before installation, any attached dirty
shall be removed with clean soft cloth
.
9.3
Check the operational of actuator to prevent block before installation.
9.4
Valve operation device is recommended to be installed at location 1.2m from the ground
for convenient of operation. Where the center of valve and the hand-wheel is over 1.8m from the
ground
, a platform shall be built for the frequently operated valve. For pipeline with
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