Instruction Manual - Rodney Hunt Company

Glydaseal Gate Adjustment
All Rodney Hunt Glydaseal gates are carefully checked
and adjusted at the factory prior to shipment to assure
that they meet the specified leakage requirements. Further
adjustment in the field will normally not be required,
and no adjustment should be undertaken unless there is
clear evidence that the seal attached to the disc is not
contacting the PVC facing attached to the frame when
the gate is fully closed. This can be determined by trying
to place a feeler gauge between the disc seal and PVC
seat facings (D and E) with the gate in the fully closed
position.
Any adjustment should be made when the water level is
below the invert of the gate.
If adjustment is necessary, the following procedures
should be followed:
1. Raise the gate disc (G) 1” to 1-1/2” above the flush
bottom seal (I).
2. Loosen the guide bar hex-head locking screw (A) on
each side of the gate.
3. Loosen the hex-nut (B) on each side of the frame.
4. Re-tighten the hex-head screws (A) against the
guide bar studs until the disc seal (E) is in contact with
the PVC seat (D). The adjustment of each screw should
be made a small amount at each time and alternate between
the sides of the gate to distribute the load evenly.
5. With a feeler gauge determine that the disc seal is
in touch with the PVC seat across the top and along
both sides of the gate.
6. Once the adjustment has been made, re-tighten all
hex-nuts (B) along each side of the gate.
The Glydaseal is now ready for use. When the disc is
fully closed the disc seal will be compressed the proper
amount for low leakage performance.
No other adjustments are required on the Glydaseal
gate.
Adjusting the bronze guide bar varies the seal compression.
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