Injectable Packing

Injectable

Pump & Valve Sealant

 While braided packing and mechanical seals are the most common pump and valve sealing solution, injectable packing can be a real problem solver.  Injectable packing is unique in that the mechanic can add packing to a pump or valve while they are in service.  This cannot be done with mechanical seals, which fail catastrophically, or braided packing which fails gradually. Simply by attaching the injection gun (think grease gun on steroids), additional injectable packing can be added until the leak stops.  After which, you just disconnect (the check valve button fitting prevents leakage), and move on to your next job.

There are 5 basic injectable packing styles.  The one that is correct for you depends on your application.  These 5 styles will handle most packing applications out there.

Once you have determined which injectable is best for your service requirements, you will then want to either purchase an injection gun that will allow you to inject the packing while the pump or valve is in service (if you don’t have one already).  If you have one already from another manufacture don’t worry our packing will work in their gun (and vice versa).

If your testing injectable for the first time, you don’t have to buy a gun.  You can just pack your pump by hand, using end rings of braided packing to act as an anti-extrusion device.  This allows you to prove it works, but it does not allow you to gain the biggest advantage of injectable packing, stopping any excessive leakage with a quick and easy top off while the pump or valve is in service.

An Easy and Convenient Product to Use

Injectable packings are easy to install. The initial installation of injectable packing materials is done by hand.

Tightening the gland nut compresses the packing and forces it to conform to any irregular spaces caused by wear.

An anti-extrusion ring composed of suitably sized braided packing material is set at the top and bottom of the stuffing box or packing gland to prevent the injectable packing from being forced out when pressure is applied.

The injection gun utilizes a button-head or flow-through fitting permanently installed on the pump or valve stuffing box.

Since it requires no electricity, the injection gun can be used anywhere to replenish packing easily and conveniently. The all-steel hydraulic gun is completely portable and is very easy to use.

The valve or pump stuffing box fitting allows the injectable packing to be hand-injected into the shaft stuffing box using the injector gun. No downtime is required for the repacking operation since the equipment can continue to run during the repacking operation.

To properly replenish the packing material, the stuffing box fitting must be located. Next, the injection gun is coupled to the fitting.

When the gun is properly coupled to the fitting, the on-off handle on the fitting is turned to the open position and the new packng is pumped into the fitting until the required amount of injectable packing is injected.

When the operation is complete, the fitting handle is placed in the off position and the gun is disconnected from the stuffing box fitting. Remember to properly disassemble and return your injection gun to its container where it may be stored until needed again.

Note: Button-head fittings with check ball valve do not required ball valve for on-line repacking.