Is the E-RX flange rubber expansion joint suitable for use with hot water that contains oil-based anticorrosive agents or oil-laden air?

No. The E-RX flange rubber expansion joint is designed for hot water, cooling water, and hot air, but it is explicitly not suitable for mineral oils, cooling water containing oil-based anticorrosive agents, or oil-laden air. Using it with such media can degrade the EPDM rubber and compromise the jointâs performance. Temperature limits: -40Â°C to +130Â°C (temporarily up to +150Â°C depending on the medium).

Can the E-RX flange rubber expansion joint be used continuously at +150Â°C for long-term applications?

No. The E-RX flange rubber expansion joint is rated for continuous operation up to +130Â°C. The +150Â°C value is specified only as a temporary (short-term) limit depending on the medium, so it is not suitable for long-term continuous use at +150Â°C. Continuous exposure at +150Â°C risks accelerated aging and loss of performance. Use within the stated continuous range (-40Â°C to +130Â°C) or consult the manufacturer for application-specific guidance if higher continuous temperatures are required.

Does the E-RX flange rubber expansion joint tolerate intermittent exposure to mineral oils?

No. The E-RX flange rubber expansion joint is not suitable for exposure to mineral oils. The product description explicitly states it is designed for hot water, cooling water, and hot air installations and is not suitable for mineral oils, cooling water with anti-corrosive agents containing oil, or oil-laden air. Continuous or intermittent contact with mineral oil can degrade the EPDM inner and outer layers and compromise performance and service life.

E-RX flange rubber expansion joint

All products, Rubber compensators/

Additional information

Material	EPDM – ethylene-propylene-diene rubber
Maximum operating temperature [°C]	130
Minimum operating temperature [°C]	-40
Vacuum resistance	yes

Designed for use in hot water, cooling water, and hot air installations. Not suitable for mineral oils, cooling water with anti-corrosive agents containing oil, or oil-laden air. Marked on the double sleeve with a red stripe. Inner layer: EPDM rubber. Reinforcement: polymer cord. Outer layer: EPDM rubber. Flanges: galvanized carbon steel. Operating temperature: from -40°C to +130°C (temporarily +150°C depending on the medium).

List of product variants

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

Designed for use in hot water, cooling water, and hot air installations. Not suitable for mineral oils, cooling water with anti-corrosive agents containing oil, or oil-laden air. Marked on the double sleeve with a red stripe. Inner layer: EPDM rubber. Reinforcement: polymer cord. Outer layer: EPDM rubber. Flanges: galvanized carbon steel. Operating temperature: from -40°C to +130°C (temporarily +150°C depending on the medium).