A fire extinguishing system including a fluid source, at least one sprinkler (2), and distribution pipes (3). The distribution pipes (3) are formed at least partially as soft-steel metal pipe having a friction loss defined according to the Hazen-Williams formula (1), with P=6.0510.sup.5LQ.sup.1.85C.sup.(1.85)d.sup.(4.87), in which P=pressure drop in the pipeline, in bar, Q=flow rate through the pipeline, in l/min, d=average inside diameter of the pipe, in mm, C=constant for the type and condition of the pipeline, and L=equivalent length of pipe sections and pipe fittings, in m. The distribution pipes (3) have an anti-corrosion coating on the inside in order to ensure a value for C in a range of 125 to 150 during commissioning of the fire extinguishing system.

An applicator machine and a process for heating and coating a section of pipeline. The applicator machine includes a frame configured to rotate about a section of pipeline to be heated and coated, rotating means operable to rotate the frame, and coating material applicators induction coils and radiant heaters mounted on the frame and rotatable therewith. The induction coil is configured to heat a section of pipeline adjacent to the induction coil to a coating material application temperature. The radiant heaters are configured to heat factory-applied coatings. Each coating material applicator sprays coating material through an aperture in a respective induction coil. The applicator includes an enclosure configured to surround a section of pipeline and provision for evacuating and collecting waste coating material. The coating material applicator may be configured to spray powder coating material, such as fusion bonded epoxy powder material and/or chemically modified polypropylene powder material.

The present invention relates to a tube product (1) with a base tube (10) made of a steel alloy with an inner circumference surface and an outer circumference surface, wherein the base tube (10) has a coating system (100) on at least part of the circumference surfaces, which has the following layer structure: zinc layer (11) with a predominant zinc portion; passivation layer (12), which is Cr-VI-free; sealing layer (13)
characterized in that the zinc layer (11) comprises at least three tiers (110), the sealing layer (13) has organic compounds which are based on plastics and the sealing layer (13) on the passivation layer (12) has a layer thickness between 0.5 and 15 m. Furthermore the invention relates to a method for manufacturing such tube product (1).

An automotive pipe mounted on an automobile includes an inner pipe portion through which a fluid passes, an outer pipe portion surrounding a part of the inner pipe portion, and a restricting portion restricting the outer pipe portion from moving in an axial direction thereof, and at least an outer circumferential surface of the inner pipe portion facing the outer pipe portion is made of a resin.

A composite particle includes a discrete, hollow, ceramic spheroid and a fluoropolymer layer disposed thereon. The fluoropolymer is a homopolymer or copolymer of a perfluoroalkyl vinyl ether; a perfluoroalkoxy vinyl ether; at least one fluoroolefin independently represented by formula C(R).sub.2CFRf, wherein Rf is fluorine or a perfluoroalkyl having from 1 to 8 carbon atoms and R is hydrogen, fluorine, or chlorine; or a combination thereof. Methods of making the composite particles, composite materials, and articles including them are also disclosed.

A composite particle includes a discrete, hollow, ceramic spheroid and a fluoropolymer layer disposed thereon. The fluoropolymer is an amorphous homopolymer or copolymer of a perfluoroalkyl vinyl ether; a perfluoroalkoxy vinyl ether; at least one fTuorookfe independently represented by formula C(R).sub.2CFRf; wherein Rf is fluorine or a perfluoroalkyl having from 1 to 8 carbon atoms and R is hydrogen, fluorine, or chlorine; or a combination thereof. Methods of making the composite particles, composite materials, and articles including them are also disclosed.

A method for forming a high temperature field joint between two insulated pipe sections, and an insulated conduit having a low temperature field joint. The conduit comprises a steel pipe with a corrosion protection coating and a pipe insulation layer comprising a polymer composition having thermal conductivity of less than about 0.40 W/mk, and/or heat resistance to continuous operating temperatures from about 150 C. to above about 205 C. After a circumferential weld joint is formed between the two pipes, a first field joint insulation layer is applied over the joint area, the first field joint insulation layer comprises a polymer composition having heat resistance to continuous operating temperatures from about 150 C. to above about 205 C.

To provide a resin-coated metal pipe which is excellent in corrosion resistance and impact resistance, wherein adhesion between a plating layer and a resin coating layer is good even without a primer layer, and whereby the number of steps at the time of production is small, and the environmental burden is low. A resin-coated metal pipe (10) comprises a metal pipe (12), a plating layer (14) formed by hot dipping plating on the outer peripheral surface of the metal pipe (12), and a resin coating layer (16) formed by melt molding on the surface of the plating layer (14), wherein the resin coating layer (16) is made of a resin material comprising a melt-moldable fluororesin (A) having at least one type of reactive functional group selected from the group consisting of a carbonyl group-containing group, a hydroxy group, an epoxy group and an isocyanate group.

The present invention relates to a method of joining polymer coated steel pipes comprising the steps ofproviding polymer coated pipe segments with an uncoated length on both ends of the segments; welding the polymer coated pipe segments together; applying a curable polymer (A) onto the uncoated length of the welded pipe segments to form an first coating layer; andapplying a polymer composition (B) onto the first coating layer to form a topcoat layer with a thickness of 0.5 to 10 mm, wherein the polymer composition (B) has a melt flow rate MFR.sub.2 of 1.0 to 6.0 g/10 min, determined according to ISO 1133 at a temperature of 190 C. under a load of 2.16 kg, and includes a base resin comprising (B-1) a non-elastomeric polyethylene in an amount of 60 to 85 wt % of the total polymer composition being produced in a process using a single-site catalyst, and (B-2) an elastomer comprising a copolymer of ethylene and at least one polar comonomer, wherein component (B-1) or components (B-1) and (B-2) have been grafted with an acid grafting agent and the use of polymer composition (B) as topcoat layer with a thickness of 0.5 to 10 mm in a coating of coated steel pipe field-joints, a method of coating a steel pipe and the use of polymer composition (B) for the coating of steel pipe joints or steel pipes.

The present invention is directed to addressing one or more of the aforementioned concerns and relates to thermal insulation materials and thermal insulation material compositions and methods for thermally insulating pipelines and associated equipment, structures, and objects used in offshore drilling. The present invention is directed to articles of manufacture comprising the thermal insulation materials and/or thermal insulation material compositions of the invention. More particularly the present invention relates to the use of ring opening metathesis polymerization polymers (ROMP polymers) and/or ROMP polymer composites for thermally insulating pipelines and associated equipment, structures, and objects used in offshore oil drilling.