Wenzhou Longwan Junkai Valve Factory is located in Longwan, the valve capital of China. Is a professional manufacturer of stainless steel valves. The main products are: stainless steel ball valve, stainless steel Y-strainer, stainless steel flange, stainless steel mirror, stainless steel gate valve, stainless steel globe valve, stainless steel check valve, etc.
The company is well-equipped, with advanced technology and quality, scientific management, complete testing methods, and has established a perfect
Quality Assurance System. Equipped with advanced testing equipment such as physical and chemical analysis, mechanical properties, water, air pressure, flaw detection, etc., each process from raw materials to finished products is inspected by special personnel, forming a complete inspection process.
Specifications: 1/2″～80″（DN10-DN5000）
Pressure level: 0.25Mpa ~ 250Mpa (150Lb ~ 2500Lb)
Commonly used standard:
National standard: GB9112-88 (GB9113·1-88～GB9123·36-88)
American Standard: ANSI B16.5, ANSI 16.47 Class150, 300, 600, 900, 1500 (TH, LJ, SW)
Japanese standard: JIS 5K, 10K, 16K, 20K (PL, SO, BL)
German standard: DIN2527, 2543, 2545, 2566, 2572, 2573, 2576, 2631, 2632, 2633, 2634, 2638
(PL, SO, WN, BL, TH)
Italian Standard: UNI2276, 2277, 2278, 6083, 6084, 6088, 6089, 2299, 2280, 2281, 2282, 2283
(PL, SO, WN, BL, TH)
British Standard: BS4504, 4506
Ministry of Chemical Industry Standard: HG5010-52～HG5028-58, HGJ44-91～HGJ65-91
HG20592-97（HG20593-97～HG20614-97）
HG20615-97（HG20616-97～HG20635-97）
Mechanical department standard: JB81-59～JB86-59, JB/T79-94～JB/T86-94
Pressure vessel standard: JB1157-82～JB1160-82, NB/T47020-2012～NB/T47027-2012
Marine flange standards: GB/T11694-94, GB/T3766-1996, GB/T11693-94, GB10746-89, GB/T4450-1995, GB/T11693-94, GB573-65, GB2506-89, CBM1012-81 , CBM1013, etc.
Flange production standard
National standard: GB/T9112-2010 (GB9113·1-2010～GB9123·4-2010)
Ministry of Chemical Industry standard: HG5010-52～HG5028-58, HGJ44-91～HGJ65-91, HG20592-2009 series, HG20615-2009 series
Mechanical Department Standard: JB81-59～JB86-59, JB/T79-94～JB/T86-94, JB/T74-1994 Pressure Vessel Standard: JB1157-82～JB1160-82, JB4700-2000～JB4707-2000 B16. 47A/B B16.39 B16.48
In the face of fierce market competition, the company always takes creating excellent quality as its own responsibility, aiming at customer satisfaction, being sincere and trustworthy, and taking preferential prices as its principle, grasping the market policy of quality, promotion of management and development. The products sell well in major cities in China, and have won the trust and praise of the majority of users. Here, we sincerely invite new and old customers at home and abroad to visit, inspect, supervise and negotiate business cooperation. At the same time, domestic and foreign customers are sincerely invited to visit and guide and participate in the development of valve products.
According to the effective operation of the ISO9001 quality system, Junkai has established a perfect quality inspection agency and formed a perfect quantity control network. With sophisticated process equipment, high-quality talents and service awareness, we ensure and improve the technical content of products and effectively protect the ultimate economic interests of users.
Kay always
Line “quality first, reputation first” purpose. To provide users with high-quality products and good and thoughtful after-sales service. Warmly welcome friends from all walks of life to discuss cooperation and create brilliance together!