Flowserve 50165 Nordstrom Figure - Manual (Page 24)

Nordstrom Figure 50165 and 50169 Dynamic Balance Iron Plug Valve FCD NVENIM2006-00 – 09/05
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Sealant Injection Equipment
So that Sealant injection can be performed easily, Nordstrom offers five designs of heavy-duty valve
sealant injection equipment.
1. 400-D Hydraulic Hand Gun – uses “J” stick sealant and Gun Pak sealant
2. Hypregun-Plus 5Q – uses a five-quart can of sealant
3. Hypregun-Plus 5G – uses a five-gallon pail of sealant
4. 400-A Screw Prime Hand Gun – uses “K” stick sealant and cartridge sealant
5. 400-B five-Gallon Bucket Pump – uses the contents of a five-gallon pail of sealant
For additional information about Nordstrom Sealant Injection Equipment, refer to the appropriate
Nordstrom Sealant Injection Equipment brochure.
Valve Maintenance
notE: The procedures described in this manual are intended for use on valves that are in-line.
Proper valve performance depends on:
• A periodic program of Sealant injection to maintain adequate sealant pressure in the valve to ensure
positive shutoff and smooth operation.
• Selecting the correct Nordstrom Valve Sealant for the valve service conditions. Because of variations
in the product temperature, line pressure, and frequency of valve operation, proper sealant selection is
essential. An “all purpose” valve sealant or lubricant does not exist. Only the correct Nordstrom Valve
Sealant can assure proper valve performance.
• The proper application of the correct sealant. Knowing how to correctly inject sealant will keep your
Dynamic Balance plug valve in proper working order without removing it from the line.
Be sure to remember:
1. Sealant injection may be performed with the valve in-line and under pressure.
2. Never attempt to attach or detach the 400-D Hand Gun or Hypregun-Plus while the gun hose is
pressurized.
Basic Sealant Injection
notE: High pressures are generated during sealant injection. It is recommended that safety glasses and
thick leather gloves be worn during sealant injection.
1. Before injecting sealant into the valve, determine if the valve is fully open or closed. While the
Dynamic Balance plug valve can be lubricated with the plug in any position, either the full open
or full close position allows the Sealdport groove system to completely distribute the pressurized
sealant to the valve seating surfaces.
2. Locate the Sealant Injection Fitting on the side of the valve. Remove any debris from the face of
the sealant fitting and attach your sealant injection device to the fitting. Be careful not to damage
the fitting in any way. A smooth contact surface is necessary to ensure an adequate seal is formed
between the button head coupler and the Sealant Fitting.
3. Inject sealant following the operating instructions for the injection equipment that you are using.