Data Sheet for Product

Flowrite AP 599 Series 4-inch Pneumatic Valve Actuator Technical Instructions
Document No. 155-183P25
May 26, 2010
Siemens Industry, Inc. Page 3
Complete instructions are included in the diaphragm replacement kit.
Service
WARNING:
Diaphragm Replacement
This product contains a spring under high compression. Make sure
the valve stem is held securely in the stem retainer before removing
the actuator top.
Mounting and
Installation
Figure 2. Acceptable Mounting Positions.
Allow eight inches (200 mm) headroom and six inches (150 mm) on either side of the
actuator.
For best performance, install the actuator vertically above the valve. The actuator can
be installed in any position between vertical and horizontal. Siemens Industry, Inc. does
not recommend installing the actuator below horizontal or up side down. See Figure 2
for allowable mounting positions.
Complete instructions for field mounting the actuator are included with the actuator.
The “0” marking on the actuator yoke indicates stem up position. The “1” mark indicates
stem down position. See Figure 1.