Instruction Manual

Instruction Manual
D103317X012
VBL Volume Booster
February 2014
2
It also allows the booster to deliver high‐volume output for fast stroking when large, rapid input signal changes occur.
The volume booster is used to improve stroking speed. If precision valve control is required, the use of a positioner is
recommended. If you use the volume booster only with an actuator, for on‐off control, the integral bypass restriction
on the volume booster must be closed (turned fully clockwise).
To facilitate diagnostic testing, you can install connectors and piping with the VBL volume booster.
The O‐rings and diaphragms in the VBL volume booster are HNBR (Hydrogenated Nitrile). HNBR demonstrates
excellent temperature capability and shelf life over standard nitrile.
Specifications
Specifications for the VBL volume booster are listed in table 1. Information for an individual unit as it comes from the
factory appears on the nameplate.
Educational Services
For information on available courses for the VBL volume booster, as well as a variety of other products, contact:
Emerson Process Management
Educational Services, Registration
P.O. Box 190
Marshalltown, IA 50158-2823
Phone: [phone] or 641-754-3771
FAX: [phone]
e-mail: [e-mail]