Installation & Operation Manual
Proven Quality since 1892
ECON safety relief valves Fig. 1514, 1515 and 1516 www.eriks.com
Rev. 4
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. Assembly
11. Possible danger
12. Troubleshooting
13. Removal
1. ERIKS operating companies
ECON safety relief 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 safety relief valves have very precise fabricated sealing surfaces and conductivity, to
guaranty a good function. For this reason, safety relief valves have to be handled very careful.
The marking makes the identification of the valve easier and contains:
- size
- set pressure
- maximum temperature Tmax
- heat number
- ECON logo + figure number
- year of fabrication
- CE marking and identification number of the inspection authority
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
4. Transport and storage
Transport and storage should always be carried out with the disc complete closed and the safety
relief valve should be protected against external forces, influence and destruction. The safety relief
valve should be stored in an unpolluted space and should also be protected against all
atmospheric circumstances. There should be taken care of the temperature and humidity in the
room, in order to prevent condensate formation.
5. Function
ECON safety relief valves have as function to protect the system against excessive pressure. At a
safety relief valve, the following pressures can occur:
- Working pressure, the pressure in the system
- set pressure, the adjusted pressure at which the safety relief valve under normal use
circumstances is opening. The forces on the disc are in balance.
- colt test pressure, the adjusted static inlet pressure, at which the safety relief valve on the
test bench starts to open.
- back pressure, the sum of pressure built up in the vent line when relief and the pressure in
the vent line when this is part of a system with a higher pressure than the ambient
pressure.
Measured pressures are barg pressures.
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