Is the LAUX 42 lever connector socket with external BSP thread, carbon steel, KMG suitable for use with chemicals, and which seal material should be chosen instead of standard EPDM?

The LAUX 42 lever connector socket with external BSP thread, carbon steel, KMG can be used with some chemicals, but compatibility depends entirely on the chemicalâs nature, concentration and temperature. The standard EPDM gasket is suitable for water, many dilute acids, alkalis and alcohols, but it is not resistant to many hydrocarbons, oils, fuels, ketones, aromatic solvents, chlorinated solvents or strong oxidizers. If you need chemical resistance beyond EPDM, choose the sealing material based on the specific medium: - NBR (Nitrile): better for mineral oils, fuels and light hydrocarbons; limited for polar solvents. - FKM/Viton: broad resistance to oils, fuels, many solvents and high temperatures. - PTFE (Teflon): excellent chemical resistance to most aggressive chemicals and wide temperature range; limited elasticity.may require an elastomer backup O-ring. - HNBR: improved heat and oil resistance vs. NBR. - FEP-lined or specialty elastomers (e.g., Kalrez): for very aggressive media or extreme conditions. Before use: verify chemical compatibility charts for the chosen seal at your operating temperature and concentration, ensure sealing material maintains required vacuum/pressure performance (up to 12.5 bar liquid, 8 bar air), and consult the manufacturer if in doubt.

Can the LAUX 42 lever connector socket with external BSP thread, carbon steel, KMG be used for high-temperature applications above 120Â°C and what are the limits?

The LAUX 42 lever connector socket with external BSP thread, carbon steel, KMG is rated for an operating temperature range of -50Â°C to +120Â°C. Therefore it is not specified for continuous use above 120Â°C. Above that temperature the limits are primarily set by the seal material (standard EPDM) and the galvanised carbon steel finish: EPDM degrades above ~120Â°C and will fail or leak; galvanising and steel properties can also be adversely affected at higher temperatures. If you need service above 120Â°C, choose a connector with high-temperature seals (e.g., Viton/FKM or PTFE) and verify pressure ratings at elevated temperatures with the manufacturer; otherwise do not use the LAUX 42 above its +120Â°C rating.

Can the LAUX 42 lever connector socket with external BSP thread, carbon steel, KMG be used for food-grade applications and what seals are recommended?

The LAUX 42 lever connector socket with external BSP thread, carbon steel, KMG Format can be used for foodâgrade applications only with appropriate precautions: the standard version uses a galvanized carbon steel body and an EPDM gasket. EPDM is generally acceptable for many food-related applications (water, some beverages, aqueous solutions) because it is nonâtoxic, has good temperature range (â50Â°C to +120Â°C) and good chemical resistance to polar substances. However, galvanized carbon steel is not typically recommended for direct contact with foodstuffs that require sanitary, corrosionâresistant surfaces (oils, fatty foods, acidic products, longâterm storage) because zinc coating can corrode or contaminate the medium. Recommendations: - For direct food contact or where regulatory foodâgrade compliance is required (e.g., HACCP, FDA, EU food contact): choose a connector made of stainless steel (e.g., AISI 304/316) and a seal with explicit foodâgrade certification. - Preferred seals: FDA/EUâcompliant EPDM for aqueous, acidic, or alcoholic media; foodâgrade NBR (BunaâN) for oily or fatty media (check temperature and chemical compatibility); FKM/VitonÂ® for highâtemperature or aggressive oils/chemicals if it has foodâgrade certification; PTFE (Teflon) for broad chemical resistance and high cleanliness where allowed. - If you must use the LAUX 42 as specified (galvanized carbon steel, standard EPDM): limit use to nonâaggressive, waterâbased food handling where brief contact is acceptable and verify local foodâsafety regulations. Ensure regular inspection and a documented cleaning regime. Also observe the product limits: max working pressure 12.5 bar (liquids), 8 bar (air), vacuum tightness and operating temperature â50Â°C to +120Â°C. For any certified foodâgrade application, consult the manufacturer for material certificates and request foodâgrade variants or alternative materials/seals.

LAUX 42 lever connector socket with external BSP thread, carbon steel, KMG

All products, Lever couplings/

Additional information

Material	CS – steel (cast iron)
Standard length [m]	10

LAUX 42 lever connector socket with external BSP thread, widely used for example: for the transport and unloading of bulk materials (grains, flours, feeds, granules, 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 connector for a medium other than water, attention should 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-KMG-038-125	KMG socket 38 mm with GZ 1.1/4", galvanized steel.	-	12.5	In stock	Enquiry
TF-KMG-038-150	KMG socket 38 mm with GZ 1.1/2", galvanized steel.	-	12.5	In stock	Enquiry
TF-KMG-048-150	KMG socket 48 mm with GZ 1.1/2", galvanized steel.	-	12.5	In stock	Enquiry
TF-KMG-048-200	KMG socket 48 mm with GZ 2", galvanized steel.	-	12.5	In stock	Enquiry
TF-KMG-076-200	KMG socket 76 mm with GZ 2", galvanized steel.	-	12.5	In stock	Enquiry
TF-KMG-076-250	KMG socket 76 mm with GZ 2.1/2", galvanized steel.	-	12.5	In stock	Enquiry
TF-KMG-076-300	KMG socket 76 mm with GZ 3", galvanized steel.	-	12.5	In stock	Enquiry
TF-KMG-102-300	KMG socket 102 mm with GZ 3", galvanized steel.	-	12.5	In stock	Enquiry
TF-KMG-102-400	KMG socket 102 mm with GZ 4", galvanized steel.	-	12.5	In stock	Enquiry
TF-KMG-133-500	KMG socket 133 mm with GZ 5", galvanized steel.	-	12.5	In stock	Enquiry
TF-KMG-152-600	KMG socket 152 mm with GZ 6", galvanized steel.	-	12.5	In stock	Enquiry

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LAUX 42 lever connector socket with external BSP thread, widely used for example: for the transport and unloading of bulk materials (grains, flours, feeds, granules, 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 connector for a medium other than water, attention should 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.