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Summary of Contents for Flowserve PSS II
- Page 1 Repair Instructions PSS II Split Seal Experience In Motion...
- Page 2 These instructions are to be used in conjunction with the PSS II Repair Kit. The Repair Kit contains replacement seal faces, secondary seals, Loctite ® 1 430 adhesive, and Dow Corning ® 2 111 Silicone grease. Other small parts are shown in Figure 1. The repair should be done in a clean, well lit area.
- Page 3 Caution: Do not sand or bead blast gasket and joint surfaces in the seal drive and gland to avoid damaging them. Glue, rubber, or heavy deposits must be carefully scraped off these surfaces before gasketing. © Copyright 2015 Flowserve Corporation...
- Page 4 Ongoing Inspection During the assembly process follow these inspection procedures to avoid errors which may not be correctable later. Check Adhesion - Gently tug at the gaskets to be sure they are properly secured. If they come loose easily, it is likely that the surfaces were not adequately cleaned or rinsed.
- Page 5 Seal Drive Split Split Joint Gasket Joint Gasket Position The split joint Flush gaskets should be 0.030" positioned flush 0.000" with the groove surfaces indicated (0.76 - 0.00 mm) in Figure 4. The Flush gasket end should Flush be flush to 0.030 inch (0.76 mm) Figure 4 shorter than the...
- Page 6 Sleeve Gasket and Rotating Face Gasket Installation Wipe the sleeve gasket groove clean with alcohol. Caution: Consult material safety data sheets for proper handling of alcohol. Install the sleeve gasket into the groove. Hold the gasket in the groove and adjust it so the end extends 0.025 to 0.035 inch (0.65 to 0.90 mm) past the seal Figure 7...
- Page 7 Repeat these steps for the rotating face gasket. Push the draped middle of the sleeve gasket and rotating face gasket into their grooves. Do not apply adhesive. See Figure 11. Figure 11 Repeat this procedure for the other seal drive half. Seal Drive Split Joint Figure 12 Gasket Installation...
- Page 8 Spring Holder Installation Place the coil springs in the spring holes. See Figure 15. Set the gland half face down on the table and insert half of the spring holder into the gland. See Figure 16. Figure 15 Lubricate one end of the lock pins and set them into the lock pin holes in the gland and align them with the holes in the spring...
- Page 9 Seat Gasket Installation Wipe the gland seat gasket groove clean with alcohol. Caution: Consult material safety data sheets for proper handling of alcohol. Install the seat gasket into the groove. Hold the seat gasket in the groove and adjust it so Figure 18 the end extends 0.025 to 0.035 inch (0.65 to 0.90 mm) past the...
- Page 10 Gland Gasket Installation The gland gasket should be Face Gasket Groove installed with one dot of adhesive every 0.50 inch (12.7 mm) with an extra dot of adhesive 0.25 inch (6.35 mm) both sides of the gland joint. Coat the cap screws with anti- seize and assemble the gland halves.
- Page 11 Gland Split Joint Gasket Installation One Dot Here Wipe the gland split joint gasket groove clean with alcohol. Caution: Consult material safety data sheets for proper handling of alcohol. Put one dot of adhesive in the groove as shown in Figure 25. Figure 25 Place the split joint gasket in the groove.
- Page 12 Rotating Face Installation Lubricate the exposed surfaces of the rotating face gasket including the ends and the rotating face shoulder with silicone grease. Figure 28 With the seal drive sitting on the bench, set the rotating face on it. See Figure 28. Align the drive pin and drive slot.
- Page 13 45 degrees from the split joints and are even with the bolt slots. See Figure 30. Note: Newer PSS II seal designs use a one piece centering device that can be pressed into place without a separate fastener.
- Page 14 Setting Device Installation 12.1 Push the plastic fastener through the hole in a setting device as shown in Figure 32. Figure 32 12.2 Push the fastener into the side hole of the seal drive. See Figure 32. 12.3 Repeat this procedure for the other setting device.
- Page 15 For Flushing 45° Centering Stationary Seal Shaft and Device Face Drive Seal Size Rotating Face Screw .19" (4.8 mm) maximum .10" (2.5 mm) minimum Pin Extension For proper seal installation, please refer to Flowserve publication FIS145, PSS II Installation Instructions.
- Page 16 Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve Asia Pacific products might be used in numerous applications under a wide variety of industrial service conditions.