What is the maximum working pressure and temperature range for the BAUER lever connector plug cap, carbon steel, B.5B?

The BAUER lever connector plug cap, carbon steel, B.5B has a maximum working pressure of 20 bar for sizes up to 89 mm and 12 bar for sizes above 89 mm. Its operating temperature range is from -20Â°C to +50Â°C.

Can the NR/SBR sealing of the BAUER lever connector plug cap, carbon steel, B.5B be used with oil-based fluids or chemicals?

No - the NR/SBR (natural rubber/styrene-butadiene rubber) sealing of the BAUER lever connector plug cap, carbon steel, B.5B is not suitable for use with oil-based fluids or aggressive chemicals. NR/SBR offers good elasticity and abrasion resistance for general-purpose applications but has poor resistance to many oils, hydrocarbons and solvents, which can cause swelling, softening and rapid degradation of the seal. For oil-based fluids or chemical exposure, select a plug cap with a seal material specifically rated for those media (e.g., NBR, FKM/Viton, or other chemical-resistant elastomers) and confirm compatibility with temperature and pressure conditions.

Is the BAUER lever connector plug cap, carbon steel, B.5B suitable for outdoor use and exposure to UV?

Partially. with limitations. Detailed: The BAUER lever connector plug cap, carbon steel, B.5B is made of galvanized carbon steel with an NR/SBR seal. It is specified for operating temperatures from â20 Â°C to +50 Â°C and working pressures up to 20 bar (up to 89 mm) or 12 bar (above 89 mm). These data indicate suitability for normal outdoor mechanical and temperature conditions within that temperature range. However, the specification does not mention UV resistance. NR/SBR (natural rubber/styrene-butadiene rubber) seals have limited long-term resistance to sunlight and UV exposure: prolonged direct UV can cause hardening, cracking and loss of elasticity over months to years, especially in harsher climates. Galvanized carbon steel provides corrosion protection but is not UV-sensitive; still, repeated exposure to moisture, salt spray or aggressive environments can corrode the coating over time. Conclusion and recommendation: - The metal body is generally fine for outdoor use, provided the environment is not highly corrosive. - The NR/SBR sealing is likely not UV-stable for long-term continuous direct sunlight exposure. For prolonged outdoor/UV exposure, consider additional UV protection (covering, shading) or ask BAUER for a plug cap with a UV-resistant sealing material (e.g., EPDM) or a specific outdoor/UV-rated version. If long service life outdoors is critical, confirm with BAUER technical support or supplier.

BAUER lever connector plug cap, carbon steel, B.5B

All products, Lever couplings/

Additional information

Material	CS – steel (cast iron)

Plug cap for BAUER lever connector. Material: carbon steel, galvanized. Sealing: NR/SBR. Working pressure: 20 bar (up to size 89 mm), 12 bar (for sizes above 89 mm). Operating temperature: from -20°C to +50°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
OM-B5B-050	BAUER plug cap 50 mm	-	20	In stock	Enquiry
OM-B5B-076	Bauer plug cap 76 mm	-	20	In stock	Enquiry
OM-B5B-089	BAUER plug blind cap 89 mm	-	20	In stock	Enquiry
OM-B5B-108	BAUER plug blind cap 108 mm	-	12	In stock	Enquiry
OM-B5B-133	BAUER plug blind cap 133 mm	-	12	In stock	Enquiry
OM-B5B-159	BAUER plug blind cap 159 mm	-	12	In stock	Enquiry
OM-B5B-194	BAUER plug blind cap 194 mm	-	12	In stock	Enquiry

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Plug cap for BAUER lever connector. Material: carbon steel, galvanized. Sealing: NR/SBR. Working pressure: 20 bar (up to size 89 mm), 12 bar (for sizes above 89 mm). Operating temperature: from -20°C to +50°C.