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Siphon Break Valve 1" BSP Male, 3/4" Female (Brass)
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Maestrini Brass Siphon Break Valve (1" BSP Male / 3/4" BSP Female)

Part No. 410025

£26.17 You pay £26.17 Incl VAT You pay £21.81 Excl VAT

RRP £29.08 £24.23

Save £2.91 (10.0%) Save £2.42 (10.0%)


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Brand Maestrini
Country of Origin Italy
Construction Brass with rubber ball
Connections Male Port: 1", Female Port: 3/4"

This Maestrini siphon break valve is made from brass. It is used to operate anti-siphon loops typically on board boats where equipment is installed below the waterline, such as engine intakes, wet exhausts and marine toilet systems.

Can be used in conjunction with BSP plumbing fittings to make an anti-siphon device, for example a 407105 1" BSP T piece, two 407045 BSP elbows and then two hose tails to connect the hose (404054, 404057). Larger sizes can also be made, by using adaptor bushings with larger T pieces.

The valve is fitted with a check ball to prevent siphoning from taking place and a pin to minimize ball rotation.

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