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DESCRIPTION
THE SAFETY VALVE IS USED TO DISCHARGE THE PRESSURE WHEN A FIXED VALVE IS OVERPASSED.
Max setting pressure: 3-6-7-8 bar
Max opening pressure: pset+15%Pset
Min closing differential: pest-15%Pset
Threading for waterworks: ISO 228/1
Manometer connection: ISO 228/1
Body: C617N or C37700
Diaphragm: EPDM
Obdurate sealing: EPDM
Spring: Carbon Steel C72
Control knob: ABS |
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Code |
DN |
L |
H |
ZWST-A |
1/2" |
45 |
67.5 |
ZWST-B |
1/2" |
45 |
67.5 |
ZWST-C |
1/2" |
40 |
50.5 |
ZWST-D |
1/2" |
41 |
71.5 |
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CODE |
PART No. |
SPEC |
Bar(kg/cm2) |
Min Ord.Qty |
ZWST-A |
201765 |
1/2" |
6.5 |
1000 |
ZWST-A |
201770 |
1/2" |
7 |
1000 |
ZWST-A |
201780 |
1/2" |
8 |
1000 |
ZWST-B |
201665 |
1/2" |
1.5 |
1000 |
ZWST-B |
201670 |
1/2" |
7 |
1000 |
ZWST-B |
201680 |
1/2" |
8 |
1000 |
ZWST-C |
201565 |
1/2" |
6.5 |
1000 |
ZWST-C |
201570 |
1/2" |
7 |
1000 |
ZWST-C |
201580 |
1/2" |
8 |
1000 |
ZWST-D |
201465 |
1/2" |
6.5 |
1000 |
ZWST-D |
201470 |
1/2" |
7 |
1000 |
ZWST-D |
201480 |
1/2" |
8 |
1000 |
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