Reasonable Structure
Reliable Sealing
Easy Open or Close
Easy Operation
Easy Maintenance
Long Usage Life 
Size:   2-9/16”  3-1/8”&3-1/16”   4-1/16”  
Working Pressure:       5000PSI   10000PSI    15000PSI
Operating Pressure: 1500PSI~3000PSI
Level:     DD   EE   FF
Working Temperature:     PU    LU
PSL: 1~3G       PR:2