PG 305
Logo PERMANENT - těsnící materiály, s. r. o.
Riegrova 245, 517 41 kostelec nad Orlicí, Czech Republic
Tel.: +420 494 321 815, fax: +420 494 321 579, email: ketner@permanent-tm.cz
www.permanent-tm.cz
Product information:
PG 305
Description: PERMANENT PG 305 is a superior quality flexible packing manufactured from high purity expanded graphite with corrosion inhibitor and on the surface with particles and flakes of fine graphite.
Colour: Black
Application: PERMANENT PG 305 is a soft naturally lubricious braided packing for sealing valves and pumps. The soft compressible nature of exfoliated graphite gives rise to good sealing performance at relatively low loads.

Permanent PG 305 has excellent chemical resistance and is suitable for use in applications involving a wide range of chemical media (with the exception of strong oxidisers). Typical industries would include the chemical and petrochemical industry, electricity power stations and oil rafineries.
Product data:
pH Range   0 to 14*
Max. Temperature Air from -200°C up to +450°C
Max. Temperature Steam up to +650°C
Max. Pressure Rotating 30 bar
Max. Pressure Valve 250 bar
Max. Shaft Speed   20 m / s
*Not suitable for use with strong oxidising agents such as oleum, aqua-regia and fuming nitric acid.
Availability:
Permanent PG 305 square section material is available in coils or spools from 4 mm to 35 mm.
As the company`s products are used for a multiplicity of purposes and as the company has no control over the method of their applications or use, the company excludes all conditions or warranties, expressed or implied by statute or otherwise, as to their products and/or their fitness for any particular purpose. Any technical co-operation between the company and the customer is given for customers assistance only and without liability on the part of the company.