Is the E-CR flange rubber expansion joint suitable for seawater and cooling water with treatment agents?

Yes. The E-CR flange rubber expansion joint is suitable for seawater and for cooling water including systems that use treatment agents. Its inner and outer layers are made of CR (chloroprene) rubber.which resists seawater and many cooling-water additives.reinforced with nylon cord and fitted with galvanized carbon-steel flanges. Operating temperature range is â25Â°C to +90Â°C (temporarily up to +100Â°C depending on the medium). It is not suitable for heating oil, diesel, gasoline, other hydrocarbons, or strong acids and bases.

Can the E-CR flange rubber expansion joint handle compressed air (not hot) and municipal wastewater without degradation?

Yes. The E-CR flange rubber expansion joint is suitable for compressed air (not hot) and municipal wastewater. Its construction-CR (chloroprene) inner and outer layers with nylon cord reinforcement and galvanized carbon steel flanges-explicitly lists compressed air (not hot) and municipal wastewater among intended media. Operating temperature range (â25Â°C to +90Â°C, temporarily up to +100Â°C depending on medium) covers non-heated compressed air and typical wastewater temperatures. Note: it is not suitable for heating oil, diesel, gasoline, other hydrocarbons, acids or bases.

Can the E-CR flange rubber expansion joint be used with oil-contaminated water and what precautions are needed?

Yes. the E-CR flange rubber expansion joint can be used with oil-contaminated water, but with specific limits and precautions. Why it is acceptable: - Construction materials: inner and outer layers are CR (chloroprene) rubber, which is compatible with oily aqueous mixtures (marked CR on the sleeve). - The product description explicitly lists oil-contaminated water among suitable media. Precautions and limitations: - Not suitable for pure hydrocarbons: do not use with heating oil, diesel, gasoline or other hydrocarbons, or with strong acids/bases. - Temperature limits: keep operating temperature between â25Â°C and +90Â°C; short-term exposure up to +100Â°C may be acceptable depending on the exact mediumâavoid sustained temperatures near the upper limit. - Pressure and chemical concentration: verify that oil concentration and any additional contaminants (solvents, additives, aggressive cleaning agents) do not exceed the chemical compatibility of chloroprene or the mechanical limits of the joint. - Mechanical considerations: ensure flange compatibility (galvanized carbon steel) with the system and proper tightening to avoid leakage or extrusion under load. - Maintenance and inspection: inspect regularly for swelling, hardening, cracking or flange corrosion; replace if degradation is observed. - Application-specific checks: confirm with manufacturer for unusual oil types, elevated temperatures, high pressures, or presence of emulsifiers/solvents that could attack CR. Summary: E-CR flange rubber expansion joint is suitable for oil-contaminated water when used within its chemical, temperature and mechanical limits and with routine inspection; avoid use with pure hydrocarbons or aggressive chemicals and consult the manufacturer for borderline cases.

E-CR flange rubber expansion joint

All products, Rubber compensators/

Additional information

Material	CR – chloroprene rubber
Maximum operating temperature [°C]	90
Minimum operating temperature [°C]	-25
Vacuum resistance	yes

Designed for the installation of cold and hot water (not drinking water), seawater, cooling water including with treatment agents, municipal wastewater, oil-contaminated water, compressed air (not hot). Not suitable for heating oil, diesel, gasoline, and other hydrocarbons as well as acids and bases. Marked on the sleeve with the letters CR without a stripe. Inner layer: CR rubber (chloroprene). Reinforcement: nylon cord. Outer layer: CR rubber (chloroprene). Flanges: galvanized carbon steel. Operating temperature: from -25°C to +90°C (temporarily +100°C depending on the medium).

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
TG-E-CR-025	Rubber compensator type E-CR, DN25, PN16	25	16
TG-E-CR-032	Rubber compensator type E-CR, DN32, PN16	32	16
TG-E-CR-040	Rubber compensator type E-CR, DN40, PN16	40	16
TG-E-CR-050	Rubber compensator type E-CR, DN50, PN16	50	16
TG-E-CR-065	Rubber compensator type E-CR, DN65, PN16	65	16
TG-E-CR-080	Rubber compensator type E-CR, DN80, PN16	80	16
TG-E-CR-100	Rubber compensator type E-CR, DN100, PN16	100	16
TG-E-CR-125	Rubber compensator type E-CR, DN125, PN16	125	16
TG-E-CR-150	Rubber compensator type E-CR, DN150, PN16	150	16
TG-E-CR-200	Rubber compensator type E-CR, DN200, PN10	200	10
TG-E-CR-250	Rubber compensator type E-CR, DN250, PN10	250	10
TG-E-CR-300	Rubber compensator type E-CR, DN300, PN10	300	10

Designed for the installation of cold and hot water (not drinking water), seawater, cooling water including with treatment agents, municipal wastewater, oil-contaminated water, compressed air (not hot). Not suitable for heating oil, diesel, gasoline, and other hydrocarbons as well as acids and bases. Marked on the sleeve with the letters CR without a stripe. Inner layer: CR rubber (chloroprene). Reinforcement: nylon cord. Outer layer: CR rubber (chloroprene). Flanges: galvanized carbon steel. Operating temperature: from -25°C to +90°C (temporarily +100°C depending on the medium).