Econ 68 Series, 67 Series, 6720, 6722, 6721 Installation & Operation Manual
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Installation & Operation Manual
Proven Quality since 1892
ECON BUTTERFLY VALVES
Series 67 and 68
Series 67
Series 68
ECON butterfly valves Series 67 & 68 Page 1 of 6 ww.eriks.com
Rev.1
Installation & Operation Manual
Fig.No.
Type
Disc
DVGW GAS
Colour
Operator
6720
Wafer
Alu-Bronze
Blue
Bare shaft
6721
Wafer
Alu-Bronze
Blue
Lever
6722
Wafer
Alu-Bronze
Blue
Gear box
6730
Wafer
Stainless Steel
Blue
Bare shaft
6731
Wafer
Stainless Steel
Blue
Lever
6732
Wafer
Stainless Steel
Blue
Gear box
67301
Wafer
Stainless Steel
Yes
Yellow
Bare shaft
67311
Wafer
Stainless Steel
Yes
Yellow
Lever
67321
Wafer
Stainless Steel
Yes
Yellow
Gear box
6820
Lug
Alu-Bronze
Blue
Bare shaft
6821
Lug
Alu-Bronze
Blue
Lever
6822
Lug
Alu-Bronze
Blue
Gear box
6830
Lug
Stainless Steel
Blue
Bare shaft
6831
Lug
Stainless Steel
Blue
Lever
6832
Lug
Stainless Steel
Blue
Gear box
68301
Lug
Stainless Steel
Yes
Yellow
Bare shaft
68311
Lug
Stainless Steel
Yes
Yellow
Lever
68321
Lug
Stainless Steel
Yes
Yellow
Gear box
Proven Quality since 1892
Content
1. Introduction
2. Product description
3. Requirements for maintenance staff
4. Transport and storage
5. Function
6. Application
7. Installation
8. Maintenance
9. Cleaning of the piping
10. Service and repair
11. Troubleshooting
12. Removal
1. ERIKS operating companies
ECON butterfly 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.
In order to benefit from the excellent properties of the ECON butterfly valves Series 67 and 68 it is
necessary that the instructions of this user manual are followed carefully. For errors resulting from
improper installation ERIKS cannot be held responsible.
2. Product description
The ECON butterfly valves are designed according the information in our latest catalogue or see
our website www.eriks.com and should be used in accordance with the applicable pressuretemperature rating as stated on this website. ECON butterfly valves are provided with casted
markings according to EN 19. The marking makes the identification of the valve easier and
contains:
- size (DN)
- pressure rating class
- body material marking
- heat numbers (when required)
- CE marking when applicable
- ECON logo
ECON butterfly valves Series 67 & 68 Page 2 of 6 ww.eriks.com
Rev.1
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