The PCV100 is a circulating pump check valve from Resideo (Honeywell Home), 1 in.
It drops into the pump flange instead of taking a fitting of its own, which is the whole point: no extra joint, no extra length of pipe, and the check ends up exactly where it belongs, at the pump.
The job is stopping gravity flow. When the circulator is off, hot water in a vertical loop will rise on its own and keep heating a zone nobody called for — the complaint of a room that stays warm all night. The check holds it.
It also keeps one zone from pushing backwards through another when several circulators share a header.
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Brand: Resideo (Honeywell Home)
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Manufacturer Part #: PCV100/U
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Type: Circulating pump check valve
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Size: 1 in
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Maximum flow: 34 gpm
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Maximum fluid temperature: 200 F
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Maximum pressure: 150 psi
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UPC: 085267837347
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Category: Pump Flanges & Accessories
Full Specifications
| Application |
Closed Loop Hydronic Heating Systems, Closed Loop Hydronic Cooling Systems, Solar Powered Systems |
| Approvals and Standards |
NSF/ANSI 61 |
| Controlled Media |
Non Potable Water |
| Flow Rate (Max) |
34 gpm |
| Warranty |
5 Years |
| Connection Size |
1 in |
| Submersible |
Non Submersible |
| Media Temperature (Max) |
200 °F, 93 °C |
| Color |
White |
| Compatible With |
Hydronic Heating Systems, Hydronic Cooling Systems, Solar Powered Systems |
| For Use With |
PC3F1558IUF00/U, PCG100/U |
| Includes |
External O-ring in groove |
| Product Diameter |
1 in |
| Seal Material |
EPDM Rubber |
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