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Series 985 to 994 |
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Part
Number Identification
| P/N |
Description |
| 985A |
½” Port,
Nitrile Seals, Normally Closed |
| 985C |
½” Port,
Nitrile Seals, Normally Open |
| 986A |
½” Port,
Epdm Seals, Normally Closed |
| 986C |
½” Port,
Epdm Seals, Normally Open |
| 987A |
½” Port,
Viton Seals, Normally Closed |
| 987C |
½” Port,
Viton Seals, Normally Open |
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| 988A |
3/8” Port,
Nitrile Seals, Normally Closed |
| 988C |
3/8” Port,
Nitrile Seals, Normally Open |
| 989A |
3/8” Port,
Epdm Seals, Normally Closed |
| 989C |
3/8” Port,
Epdm Seals, Normally Open |
| 990A |
3/8” Port,
Viton Seals, Normally Closed |
| 990C |
3/8” Port,
Viton Seals, Normally Open |
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| 992A |
3/4” Port,
Nitrile Seals, Normally Closed |
| 992C |
3/4” Port,
Nitrile Seals, Normally Open |
| 993A |
3/4” Port,
Epdm Seals, Normally Closed |
| 993C |
3/4” Port,
Epdm Seals, Normally Open |
| 994A |
3/4” Port,
Viton Seals, Normally Closed |
| 994C |
3/4” Port,
Viton Seals, Normally Open |
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| Flow
Rates |
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| Note.
Diaphragm valves do not have a constant CV factor since the diaphragm back
pressure varies with the force applied. To find the output pressure under
a given flow rate use the above chart. Example, if you have a flow rate
of 20 GPM at the inlet of the valve, follow the line until it intersects
the graph to determine the pressure loss (5 psi). Subtract this from the
inlet pressure and you will have the outlet pressure. |
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