
Operation instructions Butterfly Check Valve Series TRI-CHECK, with
counter weight and optional hydraulic damper
ZWICK Armaturen GmbH D-58256 Ennepetal
Instructions No.
Zw-Tri-Check-2016 / Rev.11
13
Modifications to valves and/or assemblies will render these declarations invalid if these changes have an impact on the technical data of
the valve and the <Appropriate use> pursuant to Section 1 of the operating instructions and when they substantially alter the valve
and/or a supplied assembly.
Ennepetal, 02 nd of June 2016
Daniel Zwick, CEO
11 Conformity Assessment Procedure acc. to PED 97/23/EC or 2014/68/EU
Table 1: Category Fluid group 1, diagram 6, module H
DN
PN
DN
ANSI CLASS
6
10
16
25
40
63
100
160
150 300 600 900 1500
50
I
I
I
II
II
II
III
III
50
I
II
III
III
III
65
I
I
II
II
II
III
III
III
65
II
II
III
III
III
80
I
I
II
II
II
III
III
III
80
II
III
III
III
III
100
I
I
II
II
III
III
III
III
100
II
III
III
III
III
125
I
II
II
II
III
III
III
III
125
II
III
III
III
III
150
I
II
II
III
III
III
III
III
150
II
III
III
III
III
200
II
II
II
III
III
III
III
III
200
III
III
III
III
III
250
II
II
III
III
III
III
III
III
250
III
III
III
III
III
300
II
II
III
III
III
III
III
III
300
III
III
III
III
III
350
II
III
III
III
III
III
III
III
350
III
III
III
III
III
400
II
III
III
III
III
III
III
III
400
III
III
III
III
III
450
II
III
III
III
III
III
III
III
450
III
III
III
III
III
500
II
III
III
III
III
III
III
III
500
III
III
III
III
III
600
III
III
III
III
III
III
III
III
600
III
III
III
III
III
650
III
III
III
III
III
III
III
III
650
III
III
III
III
III
700
III
III
III
III
III
III
III
III
700
III
III
III
III
III
750
III
III
III
III
III
III
III
III
750
III
III
III
III
III
800
III
III
III
III
III
III
III
III
800
III
III
III
III
III
850
III
III
III
III
III
III
III
III
850
III
III
III
III
III
900
III
III
III
III
III
III
III
III
900
III
III
III
III
III
950
III
III
III
III
III
III
III
III
950
III
III
III
III
III
1000
III
III
III
III
III
III
III
III
1000
III
III
III
III
III
1050
III
III
III
III
III
III
III
III
1050
III
III
III
III
III
1100
III
III
III
III
III
III
III
III
1100
III
III
III
III
III
1200
III
III
III
III
III
III
III
III
1200
III
III
III
III
III
1300
III
III
III
III
III
III
III
III
1300
III
III
III
III
III
1350
III
III
III
III
III
III
III
III
1350
III
III
III
III
III
1400
III
III
III
III
III
III
III
III
1400
III
III
III
III
III
1600
III
III
III
III
III
III
III
III
1600
III
III
III
III
III
1800
III
III
III
III
III
III
III
III
1800
III
III
III
III
III
2000
III
III
III
III
III
III
III
III
2000
III
III
III
III
III
2200
III
III
III
III
III
III
III
III
2200
III
III
III
III
III
Note: PS depends on the maximum pressure of the pressure rating (for Class valves the Ceiling
Pressure acc. to ASME B16.34)