Arrow Valves are committed to providing a friendly and efficient service. Our team are BPEC qualified in the Water Regulations, enabling us to provide accurate advice on your specific application.

Double Check ValveAssembly

Every Double Check Valve assembly shall be the exceptionally low head loss type – model ED132 – as manufactured and distributed by Arrow Valves Ltd – Tel 01442 823123 www.arrowvalves.co.uk. The pressure drop across the assembly at 3 m/s pipe velocity shall be less than 0.13 bar. The body shall be DZR brass and include flat-faced connections suitable for solder union connections.

Double Check Valvedata Sheet

Double Check Valves (ED device) with DZR brass valve bodies suitable for most pipe materials. Flat-faced connectors allow direct connection to the pipe without the need for sealants or additional adapters. Oversize, high-flow Cartridges provide exceptionally low head-loss characteristics. E.g. pressure drop for the 15 mm valve at 3 m/s pipe velocity is just 0.1 bar compared with 0.5 bar for a conventional valve. This is especially important when used on non-boosted systems since mains water pressures are being lowered down to 1.0 bar (@ 9 lt/min) in many regions. Flat-faced union connectors with soft washers allow valves to be easily installed to new or existing pipes without the need to spring pipes apart. This system allows for numerous pipe systems – see below. Valves are demountable. Spring-loaded Cartridges with resilient seats provide positive closure, no water hammer and low opening pressure.

Our miniature pressure relief valves offer faster opening rates, stable operation, lower hysteresis, & better protection against pressure spikes.

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Need expert help with your stormwater drains? Is water pooling up in your backyard? Are you facing drainage problems and flooding after heavy rain?

The Double Check Valve Assembly (DCVA) is essentially two single check valves assembled within one body and furnished with four test cocks and two shut-off ...

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Adjustable Pressure Reducing Valve EB35 1/2in Female BSP 110-550KPA.

Moroso air-oil Separator is plumbed into a vehicle's PCV system and captures excess crankcase vapors and residual oil mist, preventing it from re-entering ...

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Backflow prevention for fluids in Categories 1 – 3; Supply to flats and apartments – see Branch Valve; Hose union taps – see our range; Domestic washbasins, baths and showers; Water softening plant (common salt only); Primary heating circuits (houses only) – see CA Device; Hose union taps (houses only – inside property)

This ranges from 40 to 65°C depending on the valve. The new adjusted operating temperature is high enough for water to be stored with sufficient legionella ...

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