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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


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.
  • service life: The butterfly valve can still be closed "airtight" after being used for more than 10000 times. Pressure drop: If the pressure drop is too large, it will increase the energy consumption. However, it should be noted that the valve is not the only factor causing pressure drop in the pipeline system, and the following factors also cause pressure drop. The fluid section of the pipe. Friction on the inner wall of the pipe. A change in flow direction as it passes through a component. The flow characteristics of butterfly valves are three times or more than that of globe valves and 75% of those of gate valves of the same size generality: Butterfly valve controls and regulates the piping system by opening / closing and throttling / balancing. Butterfly valves are more versatile than gate or globe valves. Because butterfly valve can adopt various surface treatment technology and choose elastic material pipeline, so butterfly valve has strong chemical anti-corrosion performance. Weight: Light duty butterfly valves cost less than cast iron valves: for example, a 10 inch butterfly valve weighs 55 pounds, while a 10 inch cast iron gate valve weighs 490 pounds. For the whole pipeline system, the installation cost saved by using butterfly valve is very considerable. In addition, the heavier the piping system, the stronger the pipe support base is, which makes the whole piping system more expensive. Therefore, considering the weight of the val
    2020-07 07
  • 1. Due to the multi-layer soft and hard laminated seal ring fixed on the valve plate, when the valve plate is normally open, the medium will form a positive scour on its sealing surface, and the soft sealing band in the metal interlayer will be scoured, which will directly affect the sealing performance. 2. Limited by the structural conditions, the structure is not suitable for the valve with diameter below DN200, because the overall structure of the valve plate is too thick and the flow resistance is large. 3. Due to the principle of three eccentric structure, the sealing between the sealing surface of the valve plate and the valve seat depends on the torque of the driving device to press the valve plate to the valve seat. In the positive flow state, the higher the medium pressure, the tighter the seal extrusion. When the medium flow counter current, with the increase of medium pressure, the unit positive pressure between valve plate and valve seat is less than the medium pressure, the seal begins to leak. The high performance three eccentric bidirectional hard sealing butterfly valve is characterized in that the valve seat sealing ring is composed of multilayer stainless steel sheets on both sides of the soft T-shaped sealing ring. The sealing surface of valve plate and valve seat is inclined conical structure, which is overlaid with heat-resistant and corrosion-resistant alloy materials on the inclined conical surface of valve plate; the structure is composed of spring fixed between the pressure plate of regulating ring and adjusting bolt on the pressure plate. This structure effectively compensates the tolerance zone between the shaft sleeve and the valve body and the elastic deform
    2020-07 03
  • Development of triple eccentric butterfly valve Since the advent of triple eccentric butterfly valve, in order to meet the increasingly severe requirements of working conditions, it has also experienced the process of self-improvement and continuous development. Even if the most basic zero leakage, in theory, three eccentric butterfly valve can be achieved, but in fact still depends on careful design, precision manufacturing. On the basis of absorbing and summing up the advantages and disadvantages of other brands of triple eccentric butterfly valves, Badi Valve Co., Ltd. has launched its own unique triple eccentric butterfly valve Tritec Features of triple eccentric butterfly valve 1. API specification As we all know, API609 has actually become the international specification of valves for industrial important pipelines. Tritec is designed and manufactured in strict accordance with the latest 1997 edition of API609. What's more, the basic design of Tritec is not limited to API, bs5155ansib16.34, asmesecviii and other major specifications can be corresponding, which ensures that Tritec can be used in all industrial fields. 2. Dual security structure In strict accordance with the specification requirements of API609, in order to prevent the deformation of butterfly plate, the dislocation of valve stem and the occlusion of sealing surface caused by the influence of fluid pressure and temperature, Tritec has installed two independent thrust rings on the upper and lower sides of the butterfly plate to ensure the normal operation of the valve under any working conditions
    2020-07 01
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