Malleable cast iron fittings

EN 10284 Malleable cast iron fittings with compression ends for polyethylene (PE) piping systems. 

Water sample no. Malleable cast iron fittings Non-ferro us fitting Hon/ solder connection ... 

This type of cast iron is made by high-temperature heat treatment of white iron castings. The mechanical properties of malleable cast irons are given in Table 3.1 usually they are applied to the fabrication of conveyor chain links, pipe fittings and gears. 

Figure 2-4B. Forged steel socket weld fittings, WOG (water, oil or gas service). Note the working pressures are always well above actual plant operating levels and are heavy to allow for welding. Pressure classes 3000 psi and 6000 psi, sizes % in. through 4 in. nominal. Do not weld on malleable iron or cast Iron fittings. (By permission, Ladish Co., Inc.)...

Piping systems for MAPP Gas must be made of steel. [5] Schedule 40 pipe is suitable if joints are welded. Schedule 80 pipe is recommended for threaded joints. In no case shall threaded joints be welded after assembly. Fittings may be rolled, forged, or cast steel, malleable iron, or modular iron. Gray or white cast iron fittings must not be used. 

Never use malleable iron fittings or pipe unless the fluid is nonhazardous and the pressure not greater than 25 psig. Always use a pressure rating at least four times that of the maximum system pressure. t lso, never use cast iron or malleable iron fittings or valves in pressure pulsating systems or systems subject to physical shock. 

In mediaeval times, wort was boiled in iron cauldrons over open fires but as the scale of production increased, the vessels were covered over and fitted with a chimney or stack to carry steam out of the building. To construct these more complex vessels, copper, rather than cast iron, became the material of choice because of its malleability, superior conductivity and better resistance to corrosion. Accordingly, vessels in which wort boiling is carried out are often called coppers , even if the metal of construction is not copper. Other terms used are kettles or wort boilers. ... 

Cast iron, grade A-120 galvanized steel pipe, PVC plastic, and malleable iron fittings are not recommended for insulated bulk service. 

Screwed or flanged joints should be kept to a minimum, and cast iron or malleable iron fittings and valves should not be used nonar-mored porcelain valves must not be used, regardless of the pressure with either liquid or gaseous phosgene. Only outside yoke or rising... 

Coils of. standard or extra-heavy steel pipe with double-extra-heavy malleable fittings are used for normal conditions. For hard water, many refiners require the use of genuine wrought-iron pipe. Best practice for long service requires the use of Classes B and C flanged cast-iron pipe with Class D fittings. 

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