Springless Non-Return Valves
These virtually resistance-free non-return valves are ideal if you do not want water to flow back. The pump encounters very little counter-pressure because the valves have no spring that presses the valve disc against the valve seat. As a result, the pumping losses are negligible.| Product name | SKU | Price | Qty | |
|---|---|---|---|---|
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Non-return valve 32mm |
90021 |
€39.95
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Non-Return Valve 50mm |
90022 |
€54.50
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Non-Return Valve 63 mm |
90023 |
€62.50
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Non-Return Valve 90mm |
90024 |
€174.49
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Non-Return Valve 110 mm |
90025 |
€189.50
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Non-return Valve 1" |
90021-INCH |
€39.95
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Non-Return Valve 1.5" |
90022-INCH |
€54.50
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Non-Return Valve 2" |
90023-INCH |
€62.50
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Non-Return Valve 3" |
90024-INCH |
€174.49
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Non-Return Valve 4" |
90025-INCH |
€189.50
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The models can be supplied in both metric and inches units. The 32 (1”), 50 (1½”), 63 (2”) and 90 (3”) mm models are all supplied with a coupling on both sides. They are therefore easy to disassemble and you do not need an extra 3-part coupling. The 110 (4”) mm version can be bonded directly, without couplings.
The internal passages are:
- 32mm / 1" valve - 27mm
- 50mm / 1½" valve - 42mm
- 63mm / 2" valve - 54mm
- 90mm / 3" valve - 75mm
- 110mm / 4" valve - 102mm