Water treatment equipment, especially reverse osmosis or other membrane treatment equipment, is a combination of pumps, pipes, and equipment. Pipes of all kinds are therefore an integral part of any project, especially water treatment projects.

The working pressure of reverse osmosis purification water equipment devices can reach 4MPa, which is medium-pressure equipment. In addition to the shell of the reverse osmosis device itself should meet the pressure vessel Safety Technical Supervision Regulation (the regulation is issued by the State Bureau of Quality and Technical Supervision to the Bureau of Quality and Technical Supervision E1999]15 No. 4 document, to replace the original labor pot word 1990] No. 8 document, according to the regulation, the design pressure is 1.6·& LT; If it is used in the electric power industry, it should also meet the requirements of DL612-1996 "Supervision Regulations for Electric Power Industrial Boilers and Pressure Vessels" and DL647-1998 "Inspection Regulations for Electric Power Industrial Boilers and Pressure Vessels".

Purified water equipment

The chemical composition and mechanical properties test results (including tensile strength, yield, and elongation) of steel pipes with a pressure of 2.5mpa and above should meet the requirements. The pipe used should be INSPECTED before installation. The pipe with heavy skin and cracks should not be used, and there should not be significant scratches, pits, and other hard injuries. The wall thickness of the pipe shall meet the design requirements. Adequate corrosion margins should be considered for pipelines used in water treatment processes.

Related to a pipe are its accessories, such as flanges and other connections, tees, elbows, size heads and waveform compensators. In the design and installation, should be in accordance with the use of steel and quality requirements to be investigated. If welding is performed, the wire and weld quality shall be required to meet the requirements.

The sealing surface of the flange shall be smooth and clean without visible radial grooves, and the flange itself shall be free of burrs, pores, cracks, or other defects that may reduce the strength or reliability of the connection.

The bolts and nuts used for fastening shall have complete threads without scars and burrs. The bolts and threads shall be well-matched without jamming or loosening sensation. The gasket should be flat, its hardness is slightly lower than the flange.

Plastic or fiberglass pipes and fittings are often used in water treatment and reverse osmosis projects. If this is the case, the quality and strength of the adhesive must be guaranteed. The construction personnel is required to strictly follow the bonding process to ensure that the bonding has been solidified and reached the predetermined strength before installation. The tees, elbows, and other pipe fittings connected with the pipe shall be molded and pressed by the manufacturer with the equipment supplied.

Plastic, FRP pipes, and fittings should be used indoors, not in the hot sun for a long time. To avoid aging deterioration. The spacing between the support and hanger of plastic and the FRP pipeline should conform to the design regulations to avoid vertical deformation after filling with the medium. When using a metal clamp, there should be a rubber cushion. Glass steel pipes connected with flanges should be prevented from deformation due to uneven force. In the process of pipeline laying with different materials, steel pipe should be laid first, followed by glass steel pipe, and finally plastic pipe. Do not drill holes in fiberglass pipes.

The rubber-lined pipe should be checked for electric spark leakage before installation. The solvent that can dissolve rubber should not be contacted during use. All flanges should be carefully checked and strictly tested by water pressure (1.25 times of working pressure). No welding or drilling shall be performed on the installed rubber lining pipe.

The pipes used for conveying acid and alkali should not be laid overhead. The flanges and valves in the places where people are walking must have protective covers or shielding plates. The conveying pipe of concentrated acid and alkali should be used as long as possible to reduce the joint.

Cangzhou Shenlong pipe production can implement the following standards:

SY/T0315-2013 Technical Standard for Weld bonded epoxy Powder Outer Coating on Steel Pipe

CAN/CSA-Z245.20 "FBE Coating for Steel Tube Outer Wall"

DIN30671 technical standard for fused epoxy powder outer coating on steel tubes and fittings

Cangzhou shenlong pipe manufacturing co., ltd. Is engaged in oil, gas, water, coal slurry mixing medium steel pipeline coating operations, anti-corrosion, insulation, piping is set in a body's specialized pipeline engineering precast construction enterprises, products used in an oil pipeline, chemical piping, electrical, pipe, gas pipe, heat pipes, sewage pipes, etc. Anti-corrosion processing of straight pipe and bend pipe DN40-3000 three-layer structure polyolefin (PE, PP, TPEP,3LPE) steel pipe coated with anti-corrosion, DN40-3800 steel hot stewed bend pipe and pipe fittings coated with FBE, epoxy resin coating anti-corrosion, DN40-3800 steel pipe inner wall resistance reduction, solvent-free epoxy steel pipe, epoxy paint anti-corrosion, Coated plastic steel pipe, dip plastic steel pipe. Lined with plastic steel pipe PE, PO, PP, PTFE, HDPE, polymer polyethylene corrosion. The company is in strict accordance with China Petroleum and Natural Gas SY/T0413-2002, national GB/T23257-2009, German DIN 30670, American AWWA C210 and other international and domestic anti-corrosion standards.