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Flowserve RA Installation Instructions
Flowserve RA Installation Instructions

Flowserve RA Installation Instructions

Single outside pusher type seals

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Single Outside Pusher Type Seals
RA, RA-C, RO, RO-TT,
MRA, and Others
1
Equipment Check
1.1
Follow plant safety regulations prior to equipment disassembly:
1.1.1
Wear designated personal safety equipment
1.1.2
Isolate equipment and relieve any pressure in the system
1.1.3
Lock out equipment driver and valves
1.1.4
Consult plant Safety Data Sheet (SDS) files for hazardous material regulations
1.2
Disassemble equipment in accordance with the equipment manufacturer's instructions
to allow access to seal installation area.
1.3
Remove existing sealing arrangement (mechanical seal or otherwise).
Clean seal chamber and shaft thoroughly.
1.4
Inspect surfaces under gaskets to ensure they are free from pits or scratches. Break all sharp
corners on shaft steps, threads, reliefs, shoulders, key ways, etc. over which gasket(s) must
pass and/or seal against.
1.5
Check shaft or sleeve OD, seal chamber bore, seal chamber depth, gland pilot, stud diameter,
stud bolt pattern and distance to first obstruction to ensure they are dimensionally the same
as shown in the seal assembly drawing.
1.6
Check seal assembly drawings for any modifications (reworks) to be made to the equipment
for mechanical seal installation and act accordingly.
1.7
The equipment must be earthed to prevent sparks due to static electricity discharge.
Experience In Motion
Installation
Instructions
flowserve.com

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Summary of Contents for Flowserve RA

  • Page 1 Installation Instructions Single Outside Pusher Type Seals RA, RA-C, RO, RO-TT, MRA, and Others Equipment Check Follow plant safety regulations prior to equipment disassembly: 1.1.1 Wear designated personal safety equipment 1.1.2 Isolate equipment and relieve any pressure in the system 1.1.3...
  • Page 2 0.10 - 0.15 mm (0.004 - 0.006 inch). If equipment is found outside the general range, contact the equipment manufacturer and your Flowserve representative to verify the equipment’s suitability for the seal. Seal chamber squareness to the shaft centerline should be within 0.0005 mm/mm (0.0005 inch/inch) of seal...
  • Page 3 Single Outside Seal Installation Single End Suction Vertical Split Case and Vertical In-Line Pumps (1 box) Lubricate the shaft or sleeve lightly with silicone lubricant provided with the seal before installing any seal parts. Install the rotating face gasket O-ring into the bore of the rotating seal face. Engage the rotating assembly consisting of the spring holder, springs, and seal drive with the rotating face to form the rotating assembly.
  • Page 4 This product is a precision sealing device. The design and dimension tolerances are critical to seal performance. Only parts supplied by Flowserve should be used to repair a seal. To order replacement parts, refer to the part code and B/M number. A spare backup seal should be stocked to reduce repair time.

This manual is also suitable for:

Ra-cRoRo-ttMra