5.2.1 INSTALLATION PROCEDURE
Step 1: Concrete construction inspection:
•
The concrete construction shall be flat, level and plumb, and shall be
in accordance to ACI 117-06 standard. If necessary, use non-shrink
grout in order to meet the specified standard. The minimum concrete
strength shall be 3,000 PSI (20.7 MPa).
Step 2: Anchor the penstock to the channel
•
Position the channel penstock in the existing channel. Make sure
that the penstock is perfectly aligned and centered in the channel
(see figure 6).
•
Install the bottom anchor bolts, and then the lateral anchor bolts
(see figure 8).
All face mounted channel penstocks incorporate bottom and lateral
mounting brackets. For smaller sizes (typically under 60”), the channel
penstock includes lateral flexible brackets (as seen in Figure 8) that
require no field adjustment. For bigger sizes (typically over 64”), the
channel penstock includes “field adjustment brackets”. In order to
adjust the bracket, the following steps shall be followed
(see Figure 7):
- Untighten the nut
- Adjust the bracket until it is completely leaning against the wall
- Tighten the nut
- Install the anchor bolt
INSTALLATION & MAINTENANCE INSTRUCTIONS - ORIGINAL VERSION
AVK CHANNEL PENSTOCKS
SERIES 772/71
Page 5/12
MI ChannelPenstock772 rev AB August 2014 GB
SLOT
CONCRETE WALL
NUT
ADJUSTABLE BRACKET
FRAME
SLOT
CONCRETE WALL
NUT
ADJUSTABLE BRACKET
FRAME
90°
