Product name：H42W check valve
Product category：Forged steel check valve
I. design standards
Design, manufacture, specification, GB/T12235, GB/T12236
Structure length GB/T12221
Flange connection size GB/T9113 JB79.1
Test and test GB/T13927 JB9092
Two, structural features:
1, compact structure, beautiful appearance, all pass path, flow resistance coefficient is small.
2, sealing materials matching reasonable, long service life.
3, this valve is automatic valve, from the anti stop, the arrow shows the direction of the medium flow direction, the user can be installed in accordance with the needs of the pipeline, respectively, choose the corresponding type of check valve