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4.3.7  Coat the stator O-ring with 

 

silicone lubricant and install it 

into the gland ring groove.

4.3.8  Place the gland ring over 

the stator being careful to 

engage the anti-rotation pins. 

 

See Figure 15.

4.3.9  Install the sleeve collar onto 

the sleeve and align the set 

screws with the holes. 

 

See Figure 16.

4.3.10  Engage all set screws into 

the holes. Back off the dog 

point set screws by one quar-

ter turn after bottoming.

4.3.11  Install the centering tabs by 

pressing the gland ring down 

to compress the springs. Lo-

cate the tab lips into the gap 

between the gland and sleeve 

collar. See Figure 17.

4.3.12  Apply a light coating of 

silicone lubricant to one side 

of the gland face gasket to 

help the gasket adhere to the 

gland.

4.3.13  Rotate the sleeve by hand to 

ensure freedom of movement 

of the rotating parts.

4.3.14  The P-50 is now ready for 

installation. Follow the pro-

cedures in Section 2 of these 

instructions for proper installa-

tion.

Figure 15

Figure 16

Figure 17

Summary of Contents for Durametallic P-50

Page 1: ...Installation Instructions Durametallic P 50 Experience In Motion A cartridge mounted flexible stator pusher seal design for general service applications...

Page 2: ...lation according to the following steps will assure long trouble free life of the P 50 seal 1 Equipment Check 1 1 Follow plant safety regulations prior to equipment disassembly Lock out motor and valv...

Page 3: ...the P 50 with care it is manufactured to precise tolerances The stationary and rotating sealing faces are of special importance They are lapped flat to within three light bands 34 8 millionths of an i...

Page 4: ...00 2 12 7 19 7 25 1 19 4 69 4 81 5 00 5 25 2 750 3 625 4 000 3 50 3 750 2 00 2 12 7 69 7 75 1 19 4 81 4 94 5 12 5 38 2 875 3 750 4 125 3 62 3 875 2 00 2 12 7 94 8 00 1 19 4 94 5 06 5 25 5 50 3 000 3...

Page 5: ...ation An open end wrench for the gland bolt nuts 1 8 Allen wrench provided 3 32 Allen wrench provided 3 16 Allen wrench provided for sizes 2 250 inch 2 2 Lubricate the shaft or sleeve lightly with sil...

Page 6: ...seal parts and cause leakage 2 6 Assemble the pump Avoid pipe strain Align coupling properly 2 7 With the impeller shaft coupling and bearings in their final operating positions tighten the P 50 set s...

Page 7: ...e seal flushsystemisoperating Ventairfromthecasingofthepumpand the seal chamber before startup 3 4 Observe the start up If the seal runs hot or squeals check the seal flush system Do not allow the equ...

Page 8: ...ovided 3 16 Allen wrench provided for sizes 2 250 inch Stator Rotor O rings Set Screws Centering Tabs Retaining Ring Gasket O ring Springs O ring Half Dog Set Screws For special problems encountered d...

Page 9: ...the gland and discard Note Parts which should be discarded include the O rings gasket springs centering tabs and centering tab cap screws and set screws Parts which may be reused if in satisfactory c...

Page 10: ...cal Flowserve repair facility for proper installation 4 3 3 Install the rotor onto the sleeve aligning the drive slot with the pin See Figure 12 4 3 4 Install the rotor retaining ring Be careful not t...

Page 11: ...by one quar ter turn after bottoming 4 3 11 Install the centering tabs by pressing the gland ring down to compress the springs Lo cate the tab lips into the gap between the gland and sleeve collar See...

Page 12: ...train its employees and contractors in the safe use of Flowserve products in connection with the specific application While the information and specifications contained in this literature are believe...

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