Mechanical seal IS5281

Technical Data Mechanical seal IS5281

Temperature Limits -40°F to 392°F/-40°C to 200°C (-148°F/-100°C modified)
Pressure Limits Vacuum to 6 bar(g)
Speed Limits 400fpm/2m/s
Size Limits 40mm to 160mm

Brand

KSB

Modular, High-performance, Hygienic Design Agitator Seal for Glass-lined Vessels – is5281

is5281 is part of the is5280 hygienic vessel seal family. Please find general technical and hygienic design features of this family in the description of is5280. The is5281 was especially developed for applications on glass-lined reaction vessels with a glass-lined agitator shaft. To enable this, all product-wetted materials of the seal need to be of nonmetals. Due to the special design features of the is5280 seal family, this could be achieved by just building a silicon carbide insert into the cartridge flange. All other components and features are similar to is5280.

Product Description IS5281

Product Description is5281

The first choice for ultra-clean pharmaceutical and biochemical applications, these seals meet Qualified Hygienic Design (QHD) requirements to enable the cleaning and sterilisation of the product wetted process area with the seal in place (CIP, SIP).
Different versions of the is5280 family are suitable for different vessel materials: is5280 for steel, is5281 for glass-lined and Type 5282 for special alloy vessels. Each version is available in liquid lubricated (W), gas lubricated (G), dry running (D) and a unique gas/dry face combination (GD) version. Although mostly used in top-entry vessels, the inboard rotating seat design perfectly suits side and bottom-entry vessels.

Applications

Mixer and agitators
Other rotating equipment

Features is5281

California Residents: PROPOSITION 65 WARNING
Dual-pressurized cartridge seal for glass-lined vessels with rotating seat design inboard for optimal clean ability.
Modular design concept with interchangeable components.
Squared PTFE-based secondary sealing elements (PRP-Ring) improve clean ability and secure a broad chemical and temperature application range.
Design of standard version adapted from DIN 28138 considering qualified hygienic design criteria (QHD).
Product wetted materials are in compliance with FDA requirements for food contact.
Special designs or material options such as USP Class VI compliant polymers are available on request
- is5281 is available in four variants of lubrication system:
- is5281 W — Liquid-lubricated wet seal
- is5281 D — Dry-running contacting seal
- is5281 G — Gas-lubricated non-contacting seal
- is5281 GD — Gas-lubricated non-contacting inboard, dry running outboard
Suitable for application in explosive areas. Certificates of conformity according to European Directive 94/9/EC (ATEX) Cat. 3, 2 or 1 on request.