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Fisher® VBL Volume Booster

The Fisher VBL volume booster is used in conjunction with a positioner on a throttling control valve to increase stroking speed. The booster incorporates fixed deadband, soft seat construction, and an integral bypass restriction to eliminate positioner saturation problems that can occur with volume boosters that do not have these features. The volume booster delivers high-volume output for fast stroking when large, rapid input signal changes occur.

DocumentationFeatures & BenefitsSpecifications
 Product & Service Documentation
 Reliable Control Valve Solutions (metric size)
1 MBpdfFebruary 2012A
 Reliable Fisher Control Valve Solutions
5 MBpdfSeptember 2012F
 Data Sheets - Bulletins - Catalogs
 Fisher VBL Volume Booster
117 KBpdfFebruary 2014E
 Manuals & Guides
 Fisher VBL Volume Booster
123 KBpdfFebruary 2014F