More than 20 years of OEM and ODM service experience.

About Us

Our company

NORTECH Engineering Corporation Limited is one of the leading industrial valve manufacturers and suppliers in China,with more than 20 years experiences of OEM and ODM services.
with Sales team in Shanghai,and manufacturing facilities in Tianjin and Wenzhou,China,we offer various solutions to our customers worldwide.
The production base covers an area of 16,000㎡ with 200 employees and 30 of them are senior engineers and technicians.


Tianjin Greatwall Flow Valve Co.,ltd,top ranked valve manufacturer in China,manufacturing center of butterfly valves,check valves and strainers,which has worked as OEM manufacturer for the world leading valve companies.
Equipped with over 100 sets of metal processing&cutting ,machining and testing equipments including CNC machines,advanced physio chemical NDT,spectral analysis,mechanical property testing,ultrasonic fault detectors,ultrasonic thickness gags ,also lifting,transportation equipments.

Certified with ISO9001,we strictly follow the standard process of the quality control.
CE/PED certified for European union.
WRAS and ACS certified for drinking water,which is obligatory for the market in UK and France.


Nantong High-Medium Pressure Valve Co., LTD.,was founded in 1965. With old factory  38000 square meters and new facotry  49000 square meters in Nantong . NHMPV is specialized in producing gate valve, globe valve, check valve, ball valve, filter, plug valve, etc., maximum diameter is 72”, maximum pressure with 4500LB.

Now NHMPV has the certificate of  ISO 9001 Quality System; the certificate of ISO14001 environmental management system; the certificate of ISO 45001 occupational health and safety management system and the certificate of Special Equipment Manufacturing License Class A1.NHMPV has achieved the qualifications of American Petroleum Institute API 6D, API 600, API607, API6FA, PED CE, Russia TR-CU, Canada CRN and SIL Security Integrity Level Certification etc.

NHMPV is the only designated valve manufacturer of famous valve group Hitachi Metals in Japan and American valve manufacturer of Powell Valves,including the products cast carbon steel valves and stainless steel valves based on American-Standard and Japanese Industrial Standards.

Shanghai ES-Flow industrial Co.,ltd,with warehouse,sales team and technical support,have business range for stocking,actuation and distribution of valves,and also the flow control solutions for our customers.
With considerable stock of valve parts and complete valves as well,we may guarantee a short delivery time.

Reliable quality and prompt delivery make us stand out from hundreds of valve suppliers in China.
Our Main products: Actuated valves ,pneumatic butterfly valve,electric butterfly valve,pneumatic ball valve,electric ball valves, gate valve, check valve,globe valve, strainers ect.


Our business scope

  • Manufacturing
  • Design and moulding
  • Valve stocking,labling and packing
  • Valve actuation,repairing and reconditioning
  • On site support

NORTECH valves have been exported to America, Europe, Middle East and Southeast Asia, which satisfy our customers with high quality and good service.
We believe that high quality, competitive price and considerate service are the strong supports to you.

Production Equipments

all the castings are supplied from the top ranked foundries with ISO9001 certification.

Robot machine

Vertical lathe

Painting line

Shot blasting machine

precision machined valve parts ensure the minimum operating torque and long life of working.







we also work with other top ranked valve manufacturer in china,with all the certificates,including ISO9001,CE,ATEX,Firesafe.