Features: API steel valve flange for ANSI Class 150 ~ 2500, working temperature <600 ℃ oil, chemical, fire station and other conditions of the pipeline, pipe cut off or connected to the media. Applicable medium: water, oil, steam and so on. Mode of operation are: manual, gear transmission, electric, pneumatic and so on. 

 Characteristics of the product structure 
 1. Product design and manufacturing according to API standards, reliable sealing, excellent performance, with the import of equipment for use. 
 2.600Lb gate for seating by more than stellite (stellite) cobalt-based alloy cladding made of wear-resistant, high temperature, corrosion resistance, abrasion resistance performance, long life 
 3. Stem quenched and the nitrogen treatment, with good resistance to corrosion and scratch resistance. 
 4. Using flexible wedge gate structure, medium and large caliber set rolling, open and close easily. 
 5. Full range of body materials, packing, gasket according to the actual working conditions or the user's request for reasonable matching, can be applied to all kinds of pressure, temperature and medium conditions. 
 6.1500LB, 2500LB using pressure in the chamber from the tight seal structure. With the pressure within the sealing performance and higher reliability. 
 7. Inverted sealed stainless steel body threaded connection or welding sealing seat made of austenitic stainless steel, inverted, reliable sealing, packing replacement and maintenance can be carried out in the case of non-stop, convenient and does not affect system operation.