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Ningbo RMI Plastic Co., Ltd.

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  • PP Butterfly Valve Wafer Type DIN PN10
    PP Butterfly Valve Wafer Type DIN PN10
  • PPH Diaphragm Valve JIS 10K
    PPH Diaphragm Valve JIS 10K
  • PPH Ball Valve Flange End Lever Handle
    PPH Ball Valve Flange End Lever Handle
  • PVC True Union Ball Valve Socket End
    PVC True Union Ball Valve Socket End
  • PVDF Ball Check Valve ANSI
    PVDF Ball Check Valve ANSI
  • PVC Bottom Valve Flange End ANSI CL150
    PVC Bottom Valve Flange End ANSI CL150
  • PVDF Swing Check Valve Flanged PN10
    PVDF Swing Check Valve Flanged PN10
  • Plastic Diaphragm Valve Pneumatic Actuatored
    Plastic Diaphragm Valve Pneumatic Actuatored
  • PVC Vanstone flange PN16
    PVC Vanstone flange PN16
  • Plastic Shell Motorized Actuator Rotary Switch Type
    Plastic Shell Motorized Actuator Rotary Switch Type

ABOUT US

Ningbo RMI Plastic Co., Ltd. is a professional manufacturer and exporter of plastic valves and piping materials, provide consult service and supply high quality piping materials for industrial application, water treatment system, irrigation systems, etc. RMI products cover full range of plastic valves, pipes, fittings and accessories by different materials of PVDF, PVC, PVC-C, PP, PP-H, PP-GF, FRP, EPDM, VITON, PTFE. Over 30 kinds different valves include Diaphragm Valve, Ball Valve, Check Valve, Butterfly Valve, Foot Valve, Globe Valve, etc. Size from 1/2" up to 32", following standard of DIN, JIS, ANSI, CNS, ISO. 8 different materials of pipes and fittings diameter from 16mm to 600mm. With high quality products and professional technical support, we serve more than 200 customers in different industries and areas all around the world, and win good reputation. Especially in steel industrial, chloride alkali industry, metallurgical industry, paper making industry, pharmaceutical factory, electroplating factory, mining plant, fish farm, etc. We are continual working for the target of quality improving, technical innovation and service satisfied. Aim to provide customer durable and efficient products to ensure the piping system working safer and longer.
  • 24
    24 H Online Service No Time Difference.
  • 2006
    It is a Chinese brand established in 2006.
  • 5
    Our Factory Have More Than 5 Employees.
  • 5000
    More Than 5000 Square Meters Technical R&D Building.
News
  • UPVC pipe installation needs to be glued with UPVC glue. installation instructions and notes are as follows 1. The pipe end shall be cut flat and perpendicular to the pipe axis, and the fixed pipe box and handsaw or pipe cutter can be used. 2. Remove the broken particles inside and outside the pvc pipe, and chamfer (10-15 degrees) 3. Wipe off the dust, oil stain and moisture at the place where the pvc pipe and pvc pipe fittings need to be coated with glue. Moisture, dust, and oil can affect bond strength. 4. Measure the socket depth of pipe fittings, and mark the depth dimension on the pipe. 5. Start bonding First, apply a thin layer of pre adhesive on the Outer surface of the upvc pipe and the inner face of the UPVC pipe fitting then apply a thin layer of UPVC glue on the Outer surface of the upvc pipe and the inner face of the UPVC pipe fitting, then apply a layer of UPVC glue on the Outer surface of the upvc pipe and the inner face of the UPVC pipe fitting, then push the pipe into the pipe fitting quickly before the glue dry.
    2020-01 15
  • The sealing materials for plastic valves commonly used are PTFE, EPDM, FPM. Different material has different properties, select a right material of sealing for plastic valves is very important. PTFE, also known as Teflon, has excellent chemical stability, corrosion resistance and non-toxic. It is one of the best materials with corrosion resistance in the world. Besides molten alkali metal, chlorine trifluoride, chlorine pentafluoride and liquid fluorine, it can withstand all other chemicals and boil in aqua regia without any change. It is widely used in various occasions requiring acid-base resistance and organic solvents. It has good sealing, high lubrication, no sticky, electrical insulation, good aging resistance and excellent temperature resistance. It can work long term at temperatures from -180 to 250 ℃ PTFE is usually used as seat material and packing material of ball valve and butterfly valve, with good sealing, wear resistance and self-lubricating performance. PTFE is one of the best valve sealing materials under high temperature, high pressure, high corrosive working conditions, long-term use is not easy to deformation and damage. At present, the processing of PTFE parts is mainly machining and vulcanization. For the parts with complex structure, the processing cost is high. The hardness of PTFE is high, and the plastic valve body is easy to deform after a period of use at a higher temperature , Therefore, the assembly surface of the plastic valve and the PTFE seal may deform and leading to the risk of leakage. EPDM rubber is a terpolymer of ethylene, propylene and non conjugated diene. EPDM has excellent aging resistance, corrosion resistance, water vapor resistance, elasticity and electrical insulation. Therefore, it is widely used as the sealing material
    2020-01 06
  • The materials of plastic valves generally used are UPVC, CPVC, PVDF, PP, PPH, etc. Suitable materials should be selected for different media and working conditions. Generally the max working pressure of plastic valve is 1.0mpa. Therefore, only the composition, temperature and concentration of media need to be considered in the selection of plastic valve materials. In addition to the reference of material selection table, we can make a simple judgment of material use according to the temperature and media. UPVC is a non-toxic, pollution-free and corrosion-resistant material. Generally, it is recommended to use at a max temperature 50 ℃. In addition to water supply and drainage applications, UPVC can be used for alkaline and weak acid media, but not suitable for strong acid. Although UPVC is non-toxic, it is not recommended to be used in drinking water system because UPVC is mixed by different additives some additives may not good to health. The impact strength of UPVC material is not good at low temperature, so it is not recommended to used at low temperature. UPVC Plastic valve is the most widely used plastic valves. CPVC is a new type of engineering plastics which is made by chlorination of PVC resin. The corrosion resistance,heat resistance, acid resistance, alkali resistance, salt resistance and oxidant resistance, is higher than UPVC. The maximum operating temperature of CPVC can reach 110 ℃, and the long-term operating temperature is 95 ℃. However, there are some differences of heat resistance of CPVC raw materials from different manufacturers, so this must be considered in the selection. CPVC is suitable for general alkaline medium and weak acid medium, but it can not be used for strong acid medium. CPVC can be applied to drinking water system. PP is a common plastic material with excellent properties. With chemical resistance, heat resistance, electrical insulation, high-strength mechanical
    2019-12 24
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