Is the 45Â° connector for LAUX lever joint 42 socket-plug, carbon steel, KRKB suitable for use with oils or fuels, and which seal material is recommended?

Yes . the 45Â° connector for LAUX lever joint 42 socket-plug, carbon steel, KRKB can be used with oils or fuels, but only if the seal material is compatible with those media. The standard seal is EPDM, which is NOT recommended for most oils, fuels or hydrocarbons because EPDM swells or degrades on contact. For oils and fuels choose a fuel/oil-compatible elastomer such as: - NBR (Nitrile/Buna-N) . good for mineral oils and many fuels, common choice for petroleum-based oils. - FKM/Viton . broader chemical and temperature resistance, excellent for aggressive fuels and oils. - PTFE (Teflon) or PTFE-lined options . best chemical resistance where elastomer compatibility is uncertain. Confirm the exact fuel/oil type, temperature and pressure conditions, then specify the appropriate seal material to the supplier or manufacturer before use.

Can the 45Â° connector for LAUX lever joint 42 socket-plug, carbon steel, KRKB be used with abrasive or powdered bulk materials without increased wear?

45Â° connector for LAUX lever joint 42 socket-plug, carbon steel, KRKB can be used with abrasive or powdered bulk materials (grains, flours, feeds, granulates, cement, minerals) but wear will depend on abrasiveness and seal choice. The coupling body is carbon steel, galvanized, robust and vacuum-tight, and max pressures are 12.5 bar (liquids) / 8 bar (air). For abrasive powders increased wear on seals and contacting surfaces is likely over time; to minimize this, choose a more wear-resistant seal material than standard EPDM and inspect/replace seals and coupling periodically. For highly abrasive or high-wear applications consider harder materials or specialized couplings designed for abrasive media.

Can the 45Â° connector for LAUX lever joint 42 socket-plug, carbon steel, KRKB be used in high-temperature applications above 120Â°C?

No. The 45Â° connector for LAUX lever joint 42 socket-plug, carbon steel, KRKB is specified for an operating temperature range up to +120Â°C. Using it above 120Â°C would exceed the rated limit and may compromise seals (standard EPDM gasket), galvanization, and overall vacuum/pressure integrity. If your application exceeds 120Â°C, select a coupling with seals and materials rated for the higher temperature (e.g., high-temperature gaskets such as PTFE or Viton and appropriate metal treatments) or consult the manufacturer for a high-temperature variant.

45° connector for LAUX lever joint 42 socket-plug, carbon steel, KRKB

All products, Lever couplings/

Additional information

Material	CS – steel (cast iron)

45° connector for LAUX lever coupling, socket-plug with wide applications, e.g.: for the transport and unloading of bulk materials (grains, flours, feeds, granulates, cement, minerals), for pressure and vacuum pumps, for the construction of temporary water and air installations in construction, mining, agriculture, for irrigation systems. When selecting a coupling for a medium other than water, attention must be paid to the correct selection of seal material. The standard sealing is an EPDM gasket. Material: carbon steel, galvanized. Maximum working pressure: 12.5 bar (for liquids), 8 bar (for air). Vacuum tightness. Operating temperature: from -50°C to +120°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TF-KRKB-45-048	45° connector KRKB socket-plug 48 mm, galvanized steel.	-	12.5	In stock	Enquiry
TF-KRKB-45-076	45° connector KRKB socket-plug 76 mm, galvanized steel.	-	12.5	In stock	Enquiry
TF-KRKB-45-102	45° connector KRKB socket-plug 102 mm, galvanized steel.	-	12.5	In stock	Enquiry
TF-KRKB-45-133	45° connector KRKB socket-plug 133 mm, galvanized steel.	-	12.5	In stock	Enquiry
TF-KRKB-45-152	45° connector KRKB socket-plug 152 mm, galvanized steel.	-	12.5	In stock	Enquiry

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45° connector for LAUX lever coupling, socket-plug with wide applications, e.g.: for the transport and unloading of bulk materials (grains, flours, feeds, granulates, cement, minerals), for pressure and vacuum pumps, for the construction of temporary water and air installations in construction, mining, agriculture, for irrigation systems. When selecting a coupling for a medium other than water, attention must be paid to the correct selection of seal material. The standard sealing is an EPDM gasket. Material: carbon steel, galvanized. Maximum working pressure: 12.5 bar (for liquids), 8 bar (for air). Vacuum tightness. Operating temperature: from -50°C to +120°C.