Bell & Gossett V1000188B Triple Duty Valve 3DV - Manual (Page 4)

4. If Loctite 567 is unavailable, we recommend RectorSeal No. 5 pipe thread sealant for all non-glycol based
applications, or any PTFE thread sealing tape. Be sure to follow the manufacturer specific handling precautions and
application instructions as noted on the product labeling.
5. Thread component into valve until it is finger tight.
6. Apply torque to the following specification:
The P/T readout ports and drain plugs found on Bell & Gossett Model 3DV Triple Duty Valves come pre-assembled with
a leading industrial thread sealant, Loctite 567, and are tightened to appropriate levels. With that in mind, the fol-
lowing information should help to clarify questions regarding the adjustment or servicing of those components when
required.
How to use the memory stop feature
1. Make the final degree of closure setting.
2. Loosen the memory stop locking screw in the slot on the top of red knob.
3. Slide the memory stop screw in the slot clockwise until screw stops.
4.Tighten the memory stop screw.
Service Instructions
Periodically inspect the Model 3DV Triple Duty Valve for signs of leakage or corrosion.
WARNING: Corrosion or leakage are indications that the Model 3DV Triple Duty Valve must be replaced. Failure
to follow these instructions could result in serious personal injury or death and property damage.
CAUTION: Installation and maintenance must be preformed by a qualified professional. Service should not
be preformed on any valve in an active Hydronic loop. Before attempting to make any required adjustments,
properly isolate and drain the branch loops that require service and allow the valves to reach a safe handling
temperature and zero pressure condition. Use proper safety equipment including gloves, goggles, or similar
tools to avoid contact with system fluids and common hazards. Failure to follow these instructions could result
in personal injury and property damage.
Any field adjustment of factory installed components will break the original thread seal and could cause leakage. This
will necessitate the removal, cleaning, and resealing of those parts per the instructions below.
Should any adjustment or servicing of P/T readout ports or drain plugs be required, please take the following steps:
1. Completely remove the desired component from the valve.
2. Taking care not to damage any threads on the component or the valve, clean off all of the old thread sealant. Use a
wire brush and gentle abrasion if necessary. Allow the valve and the component to dry.
Note: If the component or valve appears to have been damaged, replace it.
3. Starting with the second thread of the NPT male valve component, apply a 360° bead of Loctite 567 thread sealant/
lubricant as shown below. Follow Loctite handling precautions as noted on the product labeling.