Is the E-RP flange rubber expansion joint suitable for drinking water and seawater but not for oil-laden systems or pressures above 10 bar?

Yes. The E-RP flange rubber expansion joint is suitable for drinking water and seawater . itâs explicitly designed for sanitary installations, cold and hot water, pool water, seawater and drinking water. It is not suitable for mineral oils, cooling water with oil-containing corrosion inhibitors, oil-laden air, nor for systems where the constant working pressure exceeds 10 bar. Marking: single red dot on the sleeve. Materials: inner layer butyl (IIR)/EPDM, reinforcement nylon cord, outer EPDM, flanges galvanized carbon steel. Operating temperature range â40Â°C to +90Â°C (temporary up to +120Â°C depending on medium).

Can the E-RP flange rubber expansion joint handle temperatures up to +120Â°C temporarily depending on the medium?

Yes. The E-RP flange rubber expansion joint is rated for an operating temperature range of -40Â°C to +90Â°C, and it can withstand temporary peaks up to +120Â°C depending on the medium. Ensure the medium is compatible (suitable for sanitary installations, cold/hot water, pool water, seawater, drinking water) and avoid use with mineral oils, oil-containing corrosion inhibitors, oil-laden air, or where constant working pressure exceeds 10 bar.

Does the E-RP flange rubber expansion joint use EPDM outer layer and butyl inner layer for corrosion resistance?

Yes. The E-RP flange rubber expansion joint uses an EPDM outer layer and a butyl (IIR) inner layer, as stated: Inner layer: butyl rubber (IIR) / EPDM and Outer layer: EPDM rubber. This construction provides corrosion resistance suitable for sanitary installations, cold/hot water, pool and seawater, and drinking water, but it is not suitable for mineral oils, oil-laden systems, or applications above 10 bar.

E-RP flange rubber expansion joint

All products, Rubber compensators/

Additional information

Material	IIR/EPDM – a mixture of IIR and EPDM
Maximum operating temperature [°C]	90
Minimum operating temperature [°C]	-40
Vacuum resistance	yes

Designed for sanitary installations, cold and hot water, pool water, seawater, drinking water. Not suitable for mineral oils, cooling water with corrosion inhibitors containing oil, oil-laden air, and installations where the constant working pressure exceeds 10 bar. Marked on the sleeve with a single red dot. Inner layer: butyl rubber (IIR) / EPDM. Reinforcement: nylon cord. Outer layer: EPDM rubber. Flanges: galvanized carbon steel. Operating temperature: from -40°C to +90°C (temporarily +120°C depending on the medium).

List of product variants

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

Designed for sanitary installations, cold and hot water, pool water, seawater, drinking water. Not suitable for mineral oils, cooling water with corrosion inhibitors containing oil, oil-laden air, and installations where the constant working pressure exceeds 10 bar. Marked on the sleeve with a single red dot. Inner layer: butyl rubber (IIR) / EPDM. Reinforcement: nylon cord. Outer layer: EPDM rubber. Flanges: galvanized carbon steel. Operating temperature: from -40°C to +90°C (temporarily +120°C depending on the medium).