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Ningbo RMI Plastic Co., Ltd.


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Product Center
  • 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


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.
  • Plastic diaphragm valve is a special type of cut-off valve. The biggest difference between the plastic diaphragm valve and other valves is that the structure without stuffing box is adopted; the rubber diaphragm can completely isolate the corrosive medium in the flow passage from all driving parts, thus eliminating the disadvantages of the common valve such as "running, emitting, dripping and leaking". The features of plastic diaphragm valve as follows (1) the soft rubber diaphragm valve can cut off the medium. (2) because rubber has certain corrosion resistance, it is generally used as corrosion-resistant materials to promote application, and continues to today. (3) the flow path is simple and has the function of "self-cleaning", which can be used for unclean media. (4) it is suitable for the transportation of corrosive medium, the regulation of closure and flow. The body touch medium use PVC, CPVC, PVDF , PP. It has excellent corrosion resistance, convenient operation, light volume and can replace stainless steel valves. (5) the seal diaphragm is made of PTFE or PFA, with fold resistance ≥ 1200 times, and corrosion resistance equivalent to F4. (6) adopt screw lifting structure, with large opening and closing torque and good stability.
    2019-11 14
  • Plastic check valve, also known as plastic one-way valve, is a kind of valve opened and closed by relying on the pressure of the medium itself, without manual switch. Plastic check valve is divided into swing check valve and ball core check valve according to the structure. The connection methods are flange type, wafer type, socket welding type, etc. The swing check valve uses the rotation of valve plate to open and close, which is suitable for horizontal installation. The ball core check valve uses the up and down movement of the ball core to open and close the valve, which is generally suitable for longitudinal installation. The plastic check valve is made of UPVC, CPVC, PVDF, PP, PPH materials which are not used according to the use conditions. The service temperature is generally 0 ℃ ~ 140 ℃, and the service pressure is generally less than 1.0MPa. Plastic check valve body is light in weight, compact and beautiful in structure, easy to install, strong in corrosion resistance, wear-resistant, easy to disassemble, easy to maintain and easy to operate, suitable for fluid: water, oil, corrosive chemical liquid. It is widely used in chemical industry, such as pure water and raw water pipeline system, drainage and sewage pipeline system, brine and sea water pipeline system, acid-base and chemical solution system.
    2019-11 08
  • The plastic ball valve adopts the ball core as the opening and closing parts, which is suitable for the corrosive medium. According to different materials, the service temperature is generally 0 ℃ ~ 140 ℃. Plastic ball valve parts are made of PVC, CPVC, PVDF, PP, PPH injection molded parts. The plastic ball valve use PTFE sealing parts and has excellent corrosion resistance . Flexible rotation and convenient use. The integral ball valve of plastic ball valve has few leakage points and high strength, and the connecting ball valve is easy to install and disassemble. Plastic ball valve has flange plastic ball valve, screw plastic ball valve, socket plastic ball valve, double plastic ball valve, etc. Plastic ball valve mainly has the following advantages. 1. Low fluid resistance.
    2019-10 31