Data Sheet for Product

VP 656 Powermite Three-Way Mixing Valves (Flared Type) Technical Instructions
Document No. 155-086P25
March 7, 2005
Siemens Industry, Inc. Page 5
Valve Components
Figure 2. Valve Construction (See Table 3).
Installation
• It is not necessary to remove the valve top for normal installation.
• In concealed installations, sufficient room should be allowed so that the upper
housing can be removed for valve servicing. A distance of two inches (51 mm) from
top of the housing is sufficient.
• Flow should be into ports NC and NO and out of port C for the valve to operate
properly. Flow direction arrows are cast in the valve body.
• The valve housing should never be used as a lever arm to tighten the body when
taking up on a thread.
• The valve should be installed in a vertical, upright position.
• The valve top can be rotated to allow piping the control air from a convenient
direction.
Service
WARNING:
Before doing any service work, shut off the medium (water, etc.) to the
valve and remove and cap the air line to the valve actuator to prevent
personal injury and equipment damage.
Throttling Plug
Replacement
See TB 233 (155-240P25) for recommended procedure.
Valve Rebuilding/
Repacking
See TB 233 (155-240P25) for recommended procedure.
Diaphragm Replacement
See TB 233 (155-240P25) for recommended procedure. Installation instructions are
packaged with the replacement kit.