Jiangsu Qianyuanfeida electric equipment Co.,Ltd |
|
Double hinged expansion joint stainless steel good elasticity GB/T12777-99
General description
Double hinged compensator is made up of two identical wave tube and
the tube, vertical plate and plate, flexible parts of pin, is
suitable for the angular displacement of the compensation.
Special features: good elasticity
Execution standard: GB/T12777-99
Material: stainless steel
Shape classification: corrugated compensator
Connection mode: 1, flange connection; 2, to take over the
connection
Products Angle to the compensation amount, plus or minus 4 degrees
- + 9 degrees
Double hinged compensator installation and use requirements
1. double hinged compensator before installation should check
its type, specification and pipeline configuration, must comply
with the design requirements.
2. with inner sleeve compensator should pay attention to the
inner sleeve of the bobbin in the direction of the flow in the same
direction with the media, the hinge of double hinge type
compensator rotational plane should be consistent with the
rotational plane displacement.
3. need to be "cold" tight compensator, predeformation
auxiliary components should be used in pipe installation is
removed.
4. it is forbidden to use corrugated compensator deformation
method to adjust the pipeline installation error, so as not to
affect the normal function of the compensator, reduce the service
life and increase of piping, equipment, supporting structure load.
5. the installation process, do not allow the welding slag
splash to the shell surface, do not allow the wave shell by other
mechanical damage.
6. piping installation has been completed, should be removed
as soon as possible on the corrugated compensator is used as the
installation of transport yellow auxiliary positioning components
and fasteners, and dispatch spacing device according to the
requirements of design to the regulation, make the piping have
ample compensation ability under the environmental conditions.
7. compensator all active components shall be external
components are stuck or limit the scope of its activity, should
guarantee the active parts of normal movement.
8. when the water pressure test, coping with a compensator
pipe terminal time of the department of fixed frame for
reinforcement, make line do not move or rotate. For gas medium
compensator and the connecting line, must pay attention to the
water filling whether need to add temporary support. Hydrostatic
test water cleaning fluid 96 chloride ion content is not more than
25 PPM.
9. after the water pressure test, as soon as possible the
water wave shell, shell surface dry and quickly will wave.
10. and in contact with the compensator bellows heat preservation
materials should not contain chlorine.