background image

8

4.1  Repair Procedures

4.1.1 These instructions are to be used in conjunction with the P-50 

Repair Kit. The Repair Kit contains replacement seal faces, sec-

ondary seals, and other special hardware. The parts are identified 

in Figure 7. The repair should be done in a clean, well lit area. The 

tools you will need to do the repair include:

 

• Alcohol

 

•  Paper towels or cloths

 

•  Small screw driver

 

•  1/8" Allen wrench (provided)

 

•  3/32" Allen wrench (provided)

 

•  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 during the repair procedure, 

contact your nearest Flowserve Sales and Service Representative.

Figure 7

Figure 8

4.2 Disassembly

4.2.1 Replace the centering tabs on the 

sleeve collar before removal of the 

gland bolt nuts.

4.2.2 Remove the seal from the pump.

4.2.3 Remove and discard the centering 

tabs and set screws.

4.2.4 Remove the sleeve collar.

4.2.5 Turn the assembly "gasket side up" 

and lift out he sleeve and rotor.   

See Figure 8.

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...

Reviews: