Install Instructions

Schneider Electric 1354 Clifford Ave. Loves Park, IL 61111 1-888-444-1311 www.schneider-electric.com
F-27651-1 June 2011 ao
© 2011 Schneider Electric. All rights reserved.
VB-7000 Series Globe Valves
Venta
4
Water and Steam System Maintenance
All heating and cooling systems are susceptible to valve and system problems caused by improper fluid treatment and system
storage problems. These guidelines are provided to help avoid valve and water system problems from improperly treated water or
storage procedures in cooling, hot water, and steam systems, and to obtain maximum life from Schneider Electric valves. While all
cooling and heating systems are susceptible to problems, closed chilled water systems, including those containing brine or glycol,
are especially prone to system and valve problems. The best way to avoid problems is to follow the advice of professional water treat-
ment and control specialists.
To maintain non-damaging conditions, follow these guidelines:
Clean the system prior to start up. Use a nitrite or molybdate-based treatment program.•
Use filtration equipment where needed.•
Properly store off-line systems and monitor water treatment results using corrosion test coupons.•
Boiler water treatment for steam systems should be continuous. Follow industry guidelines such as “Marks Standard Handbook •
for Mechanical Engineers.” For oxygen removal, catalyzed sodium sulfate is usually recommended.
Consult EN-205, Water System Guidelines Engineering Information, F-26080, for further details.•
Table One
Valve
Body Part
Number
Series
Valve Assembly Part Number Series* Type of Valve Inlet Port(s) Outlet
Port(s)
Flow Stem
Up
Flow Stem
Down
VB-7211 VA,VF,VK,VK4,VS or VU-7211 2-Way Stem Up
Open
A AB Valve Open Valve Closed
VB-7212 VA,VF,VK,VK4,VS or VU-7212
VB-7213 VA,VC,VF, VK,VK4,VP,VS or VU-7213
VB-7214 VA,VC,VF, VK,VK4,VP,VS or VU-7214
VB-7215 VA,VC,VF, VK,VK4,VP,VS or VU-7215
VB-7253 VA,VC,VF, VK,VK4,VP,VS or VU-7253
VB-7255 VA,VC,VF, VK, VK4,VP,VS or VU-7255
VB-7273 VA,VC,VF, VK, VK4,VP,VS or VU-7273
VB-7275 VA,VC,VF, VK,VK4,VP,VS or VU-7275
VB-7221 VA,VF, VK,VK4,VS or VU-7221 2-Way Stem Up
Closed
A AB Valve
Closed
Valve Open
VB-7222 VA,VF,VK,VK4,VS or VU-7222
VB-7223 VA,VF,VK,VK4,VP,VS or VU-7223
VB-7224 VA,VF,VK,VK4,VP,VS or VU-7224
VB-7225 VA,VF,VK,VK4,VP,VS or VU-7225
VB-7263 VA,VF,VK,VK4,VP,VS or VU-7263
VB-7265 VA,VF,VK,VK4,VP,VS or VU-7265
VB-7283 VA,VF,VK,VK4,VP,VS or VU-7283
VB-7285 VA,VF,VK,VK4,VP,VS or VU-7285
VB-7312 VA,VF,VK,VK4,VS or VU-7312 3-Way Mixing B & A AB Flow B to
AB
Flow A to AB
VB-7313 VA,VC,VF,VK,VK4,VP,VS or VU-7313
VB-7314 VA,VC,VF,VK,VK4,VP,VS or VU-7314
VB-7315 VA,VC,VF,VK,VK4,VP,VS or VU-7315
VB-7323 VA,VC,VF,VK,VK4,VP,VS or VU-7323 3-Way Divert-
ing
B A & AB Flow B to
AB
Flow B to A
VB-7325 VA,VC,VF,VK,VK4,VP,VS or VU-7325
VB-7332 VF,VK,VK4,VS or VU-7332 3-Way Se-
quencing
B & A AB Flow ** B to
AB
Flow ** A to
AB
* Valve bodies are designated by the prefix VB. When associated with an assembly, the prefix is assigned based on type of actuator. For
example, the series part number of a valve assembly with a two-way, normally open, NPT Threaded valve with a pneumatic actuator is VK-7213.
** Stem mid stroke no flow both A and B ports are closed