Sino-US joint venture of Zhejiang Poro Valve Manufacturing Co.,Ltd. is located in Yongjia County of Wenzhou, a place honored the title of "Home of Pumps and Valves in China" .Founded in the year of 1997 with overseas investment, equipment and advanced management system, PORO has been entitled with the membership to China Valve Association, class-1 supply network of China National Petroleum Corporation, and class-1 network of Sinopec.

Covering a total production area of 23186 square meters. PORO has three production centers, namely cast steel valves, forged steel valves and special valves. Its sales network spreads over some fifty areas in china, and an office in Manhattan, New York, US.PORO has been successively approved DNV ISO9001:2000 quality system,AZ safety certification for pressure vessels,API certification and CE safely certification.

PORO owns over 200 production facilities, such as CNC machining center,CNC machine tools, metal cutting machine, plasma arc powder built-up welder, as well as material lab, physical detection room and nondestructive detection room destined for chemical analysis of materials, mechanical property, ultrasonic detection, magnaflux detection, penetrant detection, spectral analysis etc. Moreover, PORO prides itself on having CAD valve design center, 3D analog manufacturing experimental design system, and new product development center. By the year of 2004, the number of staff was over 360, including more than 50 senior and secondary technicians, and over 310 skilled workers.

We specialize in manufacturing "PORO" -branded gate valves, globe valves, check valves, power station valves, vent valves, control valves and butterfly valves. Our tri-eccentric multilayered metal to metal butterfly valve has been granted three national patent technologies.The products cover over thousands of types and specifications, made to the standards of ANSI,API,DIN,BS,JJS and GB etc., driving types including manual, electric, hydraulic, pneumatic and electro-hydraulic, sizes from DN10-DN2000mm, and working pressure 0.6-42.0Mpa. Widely used in the industries of petrochemical, metallurgy, electric power, papermaking, pharmaceutical and urban construction, our products have been greatly recognized in the international market, such as US, Canada, Germany,Peru, Kenya, Jordan in Middle East and so on.

Ever since it was founded, product quality has been regarded as a highlight for the success of an enterprise. Only by supplying customers with perfect products, carrying out the quality commitment of "superior products to win customer satisfaction", and winning the initiative of marketing can we finally achieve the objective of "to advance the spirit of the nation and to foster a word-famous brand".

Adhering to the philosophy of "honest, pioneering, refined and human-oriented", PORO, along with the development of economy, is working hard to promote the buildup of its corporate culture, to cultivate the common value system and sense of honor of people of PORO, and to build up a working atmosphere of "active, self-motivated, harmonious and coexisting", thus to make the brand of PORO growing up in the soil of the profound cultural accumulation.People of PORO sincerely hope to enter into honest cooperation with friends of all works of life, striving for joint development. Committed to returning customers with "outstanding, speedy and all-around" service, we are composing a brand-new chapter of national industry.