Nantong high and middle pressure valve co., Ltd. was built in 1972
years, is currently a member of power station auxiliary equipment of power generation equipment industry association branch of China, Chinese valve profession Association Director unit of Chinese petrochemical plant equipment resources market Member, China's oil supplies and equipment (Group) Corporation and middle pressure valve supply network membership. 1, product structure: main products gate valve, globe valve, check valve, ball valve, maximum diameter 64 ″, maximum pressure is 4500Lb.
2, type:
gate valve, globe valve, check valve, ball valve, gate valve, strainer (y type), various types of non-standard valve. its driving method: manual, electric, pneumatic and gear. fabric flange type, socket weld, butt weld end, wafer, etc.
3, specifications, and pressure levels:
i. &nbSP; GB, HG, JJB standard: DN25~1600mm/PN1.6~16.0Mpa;
ii. API, ANSI, DNI, BS and other standards: 2" ~48 "/150~4500Lb;
iii. Power station valve high pressure 42.0Mpa.
production outside the valve above, we also contract responsibility system, other types of non-standard gate valve, globe valve.
4, the main material and temperature
steel types |
number (code) |
suitable temperature degrees centigrade | preparation of |
a MS
carbon steel |
WCB
WCC | —29~425 |
for high pressure valve |
low temperature
carbon steel |
LCB
LCC |
—46~345 |
for low temperature valve |
alloy steel |
WC6(CrMo)
WC9(25Cr2MoV)
C5(Cr5Mo) C12A |
—29~570 |
for non-corrosive high
temperature and pressure valve |
—29~550 |
for high-temperature corrosion
high pressure valve |
austenitic
stainless steel |
CF8(304)(0Cr18Ni9)
CF8M(316)(0Cr17Ni12Mo2Ti)
CF3(304L)
CF3M |
—29~200 | (1) for corrosion
media (2)
application temperature
gasket material |
P (1Cr18Ni9Ti)
R (1Cr18Ni12Mo2Ti) | —196~600 |
P2 |
≤650 |
II, production and testing equipment
company has strong production capacity, and covers a total area of 2 million square meters. the company machines, processing, surface treatment equipment, welding equipment. the machine equipment 147 , including CNC machine tool 5 , various welding equipment 18 . company testing equipment. there are fixed and portable spectrometer 1 , helium spectrum leak detector 1 , built Jiangsu provincial Department of environmental protection approved the RM radiographic, non-destructive testing the complete equipment and qualification of personnel. there is hardness, tensile, impact testing machine. test, detection equipment to meet the needs of production and research and development.
third, technology
company employees 218 , including: all kinds of professional and technical personnel 46 people ( including machinery, welding, heat treatment, testing, electronic, computer, material analysis, economic management, and so on). with the medium and senior professional title 14 people.
our products by GB 、API , and ASME related standards such as design and manufacturing. design used in all CAD software, there is room. the special position holder. physical and chemical inspection personnel 2 , non-destructive testing personnel 6 (: State Bureau of technical supervision ⅱ level CERT personnel 2 6), certificate of pressure vessel welding personnel 4 .
in recent years, the company increased investment in science and technology, have undertaken each year, municipal science and technology project plan, 2009 years identified as high-tech enterprise by the new standard, has a patent 15 .
four measures, quality assurance
company in 1997 year made ISO9001 quality system certificate, was awarded the certification of quality system in Nantong city Advanced Unit. in recent years, made before and after API 600 , and API 6D 、API6FA , and API607 certificate, PED certificate and issued by the State Bureau of technical supervision of TSG certificate.
company in accordance with the ISO system requires the establishment of a company of quality the network, from the design, raw materials to product delivery to the quality control of the whole process, quality records are complete. developed a customer satisfaction surveying program every year to carry out customer satisfaction surveys and analysis, quality complaints seriously, meeting customer needs in a timely manner.
company also built-way valve valve repair company, dedicated to undertake external valve repair operations and maintenance.