User Guide
Printed in U.S.A. 9-08 © Copyright 2008 TAC All Rights Reserved. F-24380-2
Application
VB-7211 series stem up open, two-way valves control
water from 20 to 281°F (-7 to 138°C) or steam to
281°F (138°C) maximum in heating or air conditioning
systems. They are used for two-position or proportional
control applications. Valve assemblies require an
actuator and a valve linkage that must be purchased
separately.
Danger:
Do not use for combustible gas applications.
The VB-7211 series valve packings are not rated for
combustible gas applications, and if used in these
applications, gas leaks and explosions could result.
Features
• Valve sizes 1/2" to 1-1/4"
• Equal percentage flow characteristics for two-
position or proportional control of water or steam
• 250 psig pressure rating per ANSI Standards
(B16.15–1985) for cast bronze bodies
• Spring-loaded TFE packing
• Union end American Standard Taper Pipe Thread
(NPT) connections
• Straightway or angle body pattern
Applicable Literature
• TAC Valve Products Catalog, F-27384
• TAC Cross-Reference Guide, F-23638
• TAC Reference Manual, F-21683
• TAC Application Manual, F-21335
• Control Valve Sizing, F-13755
• Valve Selection Chart for Steam, F-11366
• Valve Selection Chart for Water, F-11080
• EN-205 Water System Guidelines, F-26080
VB-7211-0-3-P
VB-7211-0-4-P
VB-7211 Series
1/2" to 1-1/4" Union End NPT
Stem Up Open, Two-Way Valves
General Instructions