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Kadant Johnson Vacuum Breakers provide simple, dependable way to relieve unwanted vacuum which may develop in a closed vessel or pipeline. They can be used to prevent contamination from back siphonage in fluid handling systems, and to protect equipment against collapse or implosion. They combine tight closing with instant response, provide large air venting capacity, and are designed for easy installation and long service life.
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Vacuum Breaker
Used to prevent negative pressure from causing damage to equipment. They make it easier for the air to enter when pressure is negative, both in equipment and in steam lines.
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008PCQT: Anti-Siphon, Spill-Resistant Vacuum Breakers
Description:
Series 008PCQT Anti-Siphon, Spill-Resistant, Vacuum Breakers prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage on indoor point-of-use applications. It consists of a bronze body construction, thermoplastic check and float assembly valve, stainless steel springs, tee handles, and a molded diaphragm separating the air inlet from the potable water supply to prevent spillage. Series 008PCQT is ideal for indoor use on machines or equipment in general plumbing applications. Maximum Working Pressure: 150psi (10.34 bar), Minimum Working Pressure: 8psi (55.2 kPa).
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Hinged and double hinge types, and counterweight.
Models with flanges or to mount between flanges according to type.
Valve and stopper in flake-graphite cast iron, in spheroid graphite cast iron, in bronze, in steel or in stainless steel, according to the type and class of pressure.
Face to face spacing meeting most national and international standards and notably: ISO, EN, NF, BS, DIN...
DN 40 / DN 400
Pressure classes: PN 10 - PN 16 - PN 25.
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Protection of drinking water networks against backflow of polluted water : backflow preventers, other protection systems, pressure reducers and water meters.
Water is the most precious of our natural resources. Whatever its destination, domestic, urban, agricultural or industrial, the water we use every day is distributed through an increasingly complex network of interconnected pipelines.
The risk of pollution coming from backflow ( backsiphonage or backpressure) is even greater when the different pipelines networks are closely interconnected.
The choice of a suitable protection system must then be made in relation to the level of risks induced by the fluids being used and transported.
Danfoss Socla is today the only European manufacturer to offer such a vast range of protection devices for every level of risk. Our valves -which ensure complete safety- are presented by descending level of risk.
Danfoss Socla offers also a complete range of pressure reducing valves in order to protect the water network against the risk of overpressure.
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Series 1890/1896M
ASME NB Certifi ed: Air, Steam & Water
Sizes 1/2 X 1 & 3/4 X 1 (1890) and 1/2 X 3/4 & 3/4 X 3/4 (1896M).
Effective orifi ce areas of 0.077 (liquid) and 0.089 (vapor) square inches. Pressures
from 15 to 800 psig for stainless steel (1890) and 15 to 300 psig for bronze
(1896M). Temperature range from -20 F to +750 F (1890) and -450F to +400F
(1896M).
Materials of construction include stainless steel body and trim (1890) and brass
body and trim with bronze bonnet (1896M).
Applications: air, steam, gas, vapor and liquid process applications (1890) and
where service is compatible with brass and bronze (1896M). Also suitable for
cryogenic applications.
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Positive Displacement (PD) pumps should always be installed with a Relief Valve in the discharge line, to protect the pump and piping against any type of line blockage, including the inadvertent closing of an isolation valve. Liquiflo manufactures two sizes of relief valves in both 316 Stainless Steel and Alloy-C.
Ten standard Liquiflo Relief Valve models are available, based on the body material, the port size, and the pressure setting range (see chart below). Models RV1000, RV1001, RV2000 and RV2001 are factory preset to discharge at 100 PSI (7 bar) unless a different pressure setting is requested when ordering; other models are preset to the pressure setting specified when ordering.
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| ... products without technical information |
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Valves, Clappers, Bursting discs
