Design specification:
Design standard: GB/T12235
Structure length: GB/T 12221
Connection standard: GB/T 9113, JB/T 79, HG/T 20592
Pressure test: GB/T 13927, JB/T 9092
Pressure - temperature rating: GB/T12224
Features:
1. The product structure is compact, reasonable, reliable and excellent in performance.
The sealing surface adopts alloy steel or hard alloy, the sealing side material is matched and reasonable, the service life is long.
3. Various piping flange standard and flange sealing type are adopted to meet all engineering needs and user requirements.
It has small size, light weight, good processing technology, and is one of the direction of check valve development.