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The Series 533 cold pressure reducing valves are pre-adjustable enabling them to be set at the required discharge pressure prior to installation, by means of the adjustment knob with pressure setting indicator.

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DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

Watts Backflowpreventer

DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

backflow preventer中文

Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

backflow testing是什么

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DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

Series 909QT: This valve incorporates the (“air-in/water-out”) principle which substantially improves the relief valve discharge performance. (The emergencyconditions of combined back siphonage and back pressure with both checks fouled can defeat the effectiveness of a standard RPZ backflow preventers).

DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

The hydraulic profile of the valve makes it possible to achieve low pressure losses, even when a large number of outlets are open.

DELAY MY SHIPMENT until all in-stock items AND backordered items are available in one warehouse before shipping. (You will receive only one freight bill if you choose this option).

The control stem housing of the cartridge is made from a plastic material with a low co-efficient of adhesion, which reduces the probability of scale deposits forming, the main cause of pressure reducing valve malfunction.

The internal cartridge and control knob mechanism is assembled as one unit to make removal easier for inspection, cleaning and maintenance.

Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

Ship my in-stock items now, ship my backordered items when they become available. (You will be billed for each shipment).

The Series 533 cold is specially designed for cold services in domestic and semi-commercial applications to equalise the cold water supply and prevent excessive pressure at outlets such as taps and showers.

Caleffi Prescal 535 pressure reducing valves are installed in residential water systems to reduce and stabilise inlet pressures from mains water supplies or boosted water systems, which generally are too high and variable for domestic appliances to function correctly.

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