Varec 6700, Инструкция по установке и эксплуатации

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Installation
Varec, Inc. 41
brackets there. Use good commercial practices. Make certain that vertical segments will be
plumb and the horizontal segments level. Use a concrete footing to support the tankside
vertical segment (see Figure 19 on page 42).
Installation of Model 228 Inspection Hatch to
Existing Manhole Cover
See Figure 19 on page 42 to modify an existing manhole cover with a model 228 (Part Number
BM6746) type inspection hatch.
1. Remove the cover to a safe welding location.
2. Cut a rectangular hole 6.00 inches [152 mm] x 15.75 inches [400 mm] in the cover.
3. Cut a 2.50-inch [63.5 mm] diameter hole in the cover to carry the tape drop pipe.
4. Cut two 1.75-inch [44.5 mm] diameter holes in the cover to carry the top guide cable
anchors.
5. Disassemble the inspection cover and gasket from the frame.
6. Weld the inspection cover frame to the manhole cover.
7. Weld the guide cable anchor nipples and the tape/cable drop pipe coupling in place. make
certain that they are vertical and correctly centered.
8. Carry the modified cover assembly back to the tank site. Orient the modified manhole
cover as shown and reinstall.
9. Refer to the appropriate tank configuration figure and install the tape/cable piping and
gaugeboard.
Anchor Bar Installation
Varec supplies an anchor bar for in-service installations (Part Number BA4481) that must be
ordered separately. It is for normal service only. The guide cables fasten to the anchor bar with
cable clamps (see Figure 19 on page 42). For severe or extreme service installations, contact
Varec. A severe service installation is shown in Figure 20 on page 43.