Econ ERIKS Installation & Operation Manual

Installation & Operation Manual
Content
1. ERIKS operating companies
2. Product description
3. Requirements for maintenance staff
4. Transport and storage
5. Function
6. Application
7. Installation
8. Maintenance
9. Service and repair
10. Troubleshooting
11. Removal
1. ERIKS operating companies
ECON trunnion mounted ball valves are being delivered by several ERIKS operating companies
on a worldwide basis. In this manual these will be referred to as 'ERIKS', the individual terms of
delivery of the ERIKS operating company having executed the order are applicable.
2. Product description
The ECON trunnion mounted ball valves are designed according to ASME B16.34 and
EN 125616-1. Technical information about the ball valves can be found in our latest catalogue or
see our website www.eriks.com
temperature rating as stated on this website.
Ball valves are provided with marking, according to MSS SP 25 and EN 19. The marking makes
the identification of the valve easier and contains:
- size
- pressure rating class
- body and endcap material marking
- Econosto logo
- heat numbers
- tag plate
ECON trunnion mounted ball valves have a two-piece construction and are available in 8"/DN200,
10"/DN250 and 12"/DN300. The ball valve has two seat rings which can be sealed in each
direction, without restrictions to the flow direction. Both upper and lower stems are equipped with
bearings, which reduce friction and ensure easy and stable operation. The acting force on the ball
made by upstream pressure is transmitted to upper and lower stem and the ball will not move out
of its position. The valve sealing is realized by a spring behind the seat. The seat-springs pre-
tightening unit features in self-sealing and ensures its sealing capability.
According to customers' requirements, the valve can be provided with a grease injection system,
in order to extend the life-cycle of the valve, in case the ball or seats have been damaged.
Before using grease injection fittings, assure that the valve is in fully closed position. Connect a
grease gun to the fitting and inject an appropriate volume of grease. If the valve fails to seal after
the injection of grease, turn the handwheel gently back and forth, moving the ball against the seat
in order to assist the spread of the grease over the seat surface.
Due to the grease injection into the sealing surface, the friction and damage on the sealing surface
will be reduced and the life-cycle of the valve extended. In case when the valve seat is damaged,
grease injection will only function as a temporary seal until the valve can be repaired or replaced.
3. Requirements for maintenance staff
The staff assigned to assembly, operating and maintenance tasks should be qualified to carry out
such jobs and in any circumstance, ensure personal safety
ECON trunnion mounted ball valves Fig. 6245, 6249, 6257, 6285, 6289, 6297
Rev. 3
and should be used in accordance with the applicable pressure-
Proven Quality since 1892
www.eriks.com