ABOUT DONGYI
My factory was founded in 2006 in Wenzhou
As the industry leader to design and produce spare parts for piston compressor and gas separation plants in China.
Our products are widely used for metallurgy diggings petrochemical industry ,gas separation, chemical industry,textile industry, food-stuff industry, medical industry etc.
Quality and honor
Design for the valve has been patented to improve and extend service life.
Successfully invented tungsten oxide & ceramic piston rod Invented superfine abrasion resistant fiber filled PTFE to produce piston ring support ring, packing sealing ring, in order to fill the gap in the market.
Major Compressor Brands
Design for the valve has been patented to improve and extend service life.
PPI, MAN,SAID,GE, DRESSER-RAND, NUOVO PIGNONE etc. All Kinds of Chinese compressor brands.
  • We may design the valve and packing assembly to make working condition better and have gained 5 patents

  • Patent material —PTWFE ,to prolong the service life

  • 12 hours response restless year round. Provide OEM service quality and honor company has passed ISO9001 certification.

  • Advanced Production
    Equipment

  • Advanced Technical
    Team

  • Provide OEM
    service

dongyi commitment
  • pre-sales
    Response in time and make a reasonable quotation
  • IN-SALE-SERVE
    Ensure the best quality and delivery time
  • AFTER-SALES
    Handle quality problems in time
news
  • 25
    APRIL

    PRE-SALES2019

    We may design the valve and packing assembly to make working condition better and have gained 5 patents.e may design the valve and packing assembly to make working condition better
  • 25
    APRIL

    PRE-SALES2019

    We may design the valve and packing assembly to make working condition better and have gained 5 patents.e may design the valve and packing assembly to make working condition better