Design specification:

Design standard: GB/T12236

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.