T208VR Series
D103760X012
December 2013
www.fisherregulators.com
Instruction Manual
T208Vr Series Tank Blanketing Vacuum regulator
introduction
Scope of the Manual
This Instruction Manual provides instruction for
installation, startup, maintenance and parts list for the
T208VR Series tank blanketing vacuum regulator.
Instructions and parts lists for other equipment used
with these regulators are found in separate manuals.
Product Description
The T208VR Series vacuum regulators are used
for precise control of small capacity, low-pressure
service applications where a constant vacuum must be
Figure 1.
Type T208VR Vacuum Regulator
Table of Contents
Introduction ..................................................................1
Specifications ..............................................................2
Principle of Operation ..................................................2
Installation ...................................................................4
Startup, Adjustment and Shutdown .............................5
Maintenance ................................................................5
Parts Ordering .............................................................9
Parts List......................................................................9
maintained. These direct-operated vacuum regulators
come in 3/4 and 1-inch / DN 20 and 25 body sizes and
have a 7/16-inch / 11 mm orifi ce and a 1/4-inch spring
case vent connection with optional umbrella vent
assembly. The individual products are described
as follows:
Type T208VR
The Type T208VR is a vacuum regulator with internal
pressure registration requiring no control line.
Type T208VRM
The Type T208VRM has a control line connection and
blocked throat for external pressure registration.
