Model No. GV-135-MKB-DBB
Key Block GV-135-MKB-DBB Double Block & Bleed
              The GV-135-MKB-DBB features two independently operable 10mm bore ball valves for isolation service with an intermediate 5.0mm bore globe style needle valve for venting service.
The GV-135-MKB-DBB are integrally forged one piece double block & bleed, assemblies for primary isolation of pressure take-offs, where the valve is directly mounted to the vessel or process pipe. Instruments may be directly mounted to the valves outlet or alternatively remotely mounted with gauge line / impulse pipe line
STANDARD FEATURES
APPLICATIONS
(OS &Y) and Globe Style Needle Valve Gland packing Materials Standard Valves are offered with Graphite. PTFE is also available as an option
| SIZE  (inch)  | 
                    RATING  (Ib.)  | 
                    A  (mm)  | 
                    ØB  (mm)  | 
                  
| 1/2" | 150 | 57 | 89 | 
| 3/4" | 150 | 57 | 99 | 
| 1" | 150 | 57 | 108 | 
| 11/2" | 150 | 60 | 127 | 
| 2" | 150 | 63 | 153 | 
| 1/2" | 300 | 57 | 96 | 
| 3/4" | 300 | 60 | 118 | 
| 1" | 300 | 60 | 124 | 
| 11/2" | 300 | 63 | 156 | 
| 2" | 300 | 63 | 165 | 
| 1/2" | 600 | 61 | 96 | 
| 3/4" | 600 | 64 | 118 | 
| 1" | 600 | 64 | 124 | 
| 11/2" | 600 | 67 | 156 | 
| 2" | 600 | 67 | 165 | 
| 1/2" | 900 | 64 | 121 | 
| 3/4" | 900 | 64 | 130 | 
| 1" | 900 | 67 | 150 | 
| 11/2" | 900 | 67 | 178 | 
| 2" | 900 | 72 | 216 | 
| 1/2" | 1500 | 64 | 121 | 
| 3/4" | 1500 | 64 | 130 | 
| 1" | 1500 | 67 | 150 | 
| 11/2" | 1500 | 67 | 178 | 
| 2" | 1500 | 72 | 216 | 
| 1/2" | 2500 | 64 | 134 | 
| 3/4" | 2500 | 64 | 140 | 
| 1" | 2500 | 67 | 159 | 
| 11/2" | 2500 | 72 | 203 | 
| 2" | 2500 | 73 | 235 | 
Note: 1. Packing is optional with graphite for high temperature to 450℃