Established in 1985, Zhejiang Tianzheng Valve Co., Ltd. Is located in Wenzhou City, Zhejiang P. R 325105, China.

It is a high-tech enterprise research, development, manu-facturing, nspection and distribution. It is the Member Unit of Valve Division of China General Machinery Industry Asso-ciation, Member of China Gas Association, Safety Valve Production License Enterprise approved by State Ministry of Machinery Industry. The products have passed safety registration "AZ" symbol certificate of National Technical Supervision and ISO9001 international quality system certificate. The PICC undertakes the quality insurance of products manufactured by our company.

The company has excellent mechanical processing equipment and modernized inspection& testing equipments more than 66 sets used for our main products: Safety valve in accordance with the standards of ANSI, API, DIN, BS, JIS and GB.

Nominal diameter (DN): 10mm - 600 mm(1/2"-25");
Nominal Pressure (PN): 0.06 Mpa~42.0Mpa( 150lb~2500lb);
Working Temperature: -196~580.
Material of body: WCB, WC6, WC1, WC9, ZGCr5mO, ZG15Cr1Mo1v, CF8, CF8M, CF3, CF3M, 12CrMoV, ZG1Cr18Ni9Ti and ZG1Cr18Ni12Mo2Ti, etc.

The products are widely used in boiler, pressure vessel, pipe equipment and power station equipment. We can also carry out the design and manufactring of various non-standard and special safety valves according to customer requirements.

Honors:
1. ISO9001: 2000 International Quality System Certificate Enterprise
2. Production Supervision Certificate
3. Production license of National Industrial Products
4. AZ Certificate
5. Certificate of Adopting International Standard
6. Qualified Metering Unit
7. Inspection Certificate of Quality Inspection Center for Mechanical and Electrical Products