Reasonable Structure
Reliable Sealing
Easy Open or Close
Easy Operation
Easy Maintenance
Long Usage Life 
Size:  1-13/16”    2-1/16”     2-9/16”     3-1/8”&3-1/16”      
Working Pressure:        5000PSI   10000PSI    15000PSI
Operating Pressure:     150PSI
Level:                  DD   EE   FF
Working Temperature:     PU    LU
PSL: 1~3G       PR:1&2