Flowserve ISC Series - Manual (Page 2)

2
Description
This ISC seal is a cartridge mounted mechanical seal, designed for ease
of installation and reliable operation. No seal setting dimensions are
required. Removable setting devices provide proper alignment.
The ISC seal family consists of:
ISC1PX - Single Pusher Seal
stationary springs
ISC2PP - Dual Pusher Seal
stationary springs
ISC1BX - Single Metal Bellows Seal
rotating bellows (standard)
ISC2BB - Dual Metal Bellows Seal
rotating bellows (standard)
ISC1SX - Single Metal Bellows Seal
stationary bellows (optional)
ISC2SS - Dual Metal Bellows Seal
stationary bellows (optional)
ISC1EX - Single Elastomer Bellows Seal
The flexible stator pusher design compensates for inadvertent
misalignment of the seal chamber face. Multiple springs provide uniform
face loading and are external of the process fluid, resisting clogging and
stress corrosion.
The bellows design is available in both rotating and stationary bellows
arrangements.
Rotating bellows arrangements are used when the self cleaning
feature is required and stationary bellows are used to compensate for
inadvertent misalignment of the seal chamber face.
Installation according to the following steps will assure long trouble free
life of the seal.
1 Equipment Check
1.1 Follow plant safety regulations prior to equipment disassembly:
• lock out motor and valves.
• wear designated personal safety equipment.
• relieve any pressure in the system.
• consult plant MSDS files for hazardous material regulations.
1.2 Disassemble equipment in accordance with equipment
manufacturer’s instructions to allow access to seal installation area.
1.3 Remove existing mechanical seal and gland or compression
packing and packing gland.
The images of parts shown in these instructions may differ visually from the actual
parts due to manufacturing processes that do not affect the part function or quality.