Is the LAUX 42 lever connector plug with welding stub, stainless steel, KKV suitable for vacuum service and what is its maximum vacuum rating?

Yes. The LAUX 42 lever connector plug with welding stub, stainless steel, KKV Format is suitable for vacuum service. The product description explicitly lists use for "pressure and vacuum pumps" and states "vacuum tightness." While maximum positive working pressures are given (12.5 bar for liquids, 8 bar for air), no numeric maximum vacuum (e.g., mbar/torr) is specified in the provided text. For absolute vacuum limits or leak-rate specifications required for high- or ultra-high-vacuum applications, request the manufacturer's detailed vacuum rating or technical data sheet. For typical industrial vacuum applications (pumps and transport systems) the device is indicated as appropriate.

Can the LAUX 42 lever connector plug with welding stub, stainless steel, KKV be used for transporting abrasive bulk materials like cement and grain?

Yes. The LAUX 42 lever connector plug with welding stub, stainless steel, KKV is suitable for transporting abrasive bulk materials like cement and grain. Its intended applications explicitly include transport and unloading of bulk materials (grains, flours, feeds, granulates, cement, minerals). Made of AISI 316 stainless steel it offers good wear and corrosion resistance; it is vacuum-tight and rated to 12.5 bar for liquids and 8 bar for air, making it robust for pneumatic or gravity-fed systems. For highly abrasive or high-wear scenarios consider additional abrasion-resistant linings, frequent inspection and proper mounting to maximize service life.

Does the LAUX 42 lever connector plug with welding stub, stainless steel, KKV require special welding procedures for AISI 316 to maintain pressure ratings?

No. the LAUX 42 lever connector plug with welding stub, stainless steel, KKV does not require special or unusual welding procedures beyond standard, industry-accepted practices for AISI 316 to maintain the stated pressure ratings. Because the part is made of AISI 316, ensure welding is performed by qualified personnel using appropriate filler materials (compatible with 316 stainless, e.g. 316L/316 filler or matching consumables), correct shielding gas, and controls for heat input to avoid excessive sensitization or distortion. Proper post-weld cleaning/passivation to remove heat tint and contaminants is recommended to preserve corrosion resistance and vacuum/pressure tightness. Follow applicable standards and manufacturer or project welding specifications (e.g. WPS, relevant EN/ISO or AWS procedures) and perform pressure or leak testing after welding to confirm integrity at the rated 12.5 bar (liquids) / 8 bar (air).

A LAUX 42 lever coupling plug with a spigot for welding-on, steel stainless, KKV

All products, Lever couplings/

Additional information

Material	SS – stainless steel

A LAUX 42 lever coupling plug with a weld-on connection with wide application np.: for transferring and unloading bulk materials (grain, flour, feed, granulates, cement, minerals), for pressure and vacuum pumps, for building temporary water and air installations in construction, mining and agriculture, and for irrigation systems. Material: steel AISI 316. Maximum Working pressure: 12.5 bar (for fluids), 8 bar (for air). Vacuum tightness.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TF-KKV-038-038-SS	Plug KKV 38 mm for welding-on. 38 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-048-051-SS	Plug KKV 48 mm for welding-on. 51 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-048-060-SS	Plug KKV 48 mm for welding-on. 60 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-076-060-SS	Plug KKV 76 mm for welding-on. 60 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-076-076-SS	Plug KKV 76 mm for welding-on. 76 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-076-084-SS	Plug KKV 76 mm for welding-on. 84 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-076-089-SS	Plug KKV 76 mm for welding-on. 89 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-102-103-SS	Plug KKV 102 mm for welding-on. 103 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-102-114-SS	Plug KKV 102 mm for welding-on. 114 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-133-129-SS	Plug KKV 133 mm for welding-on. 129 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-133-139-SS	Plug KKV 133 mm for welding-on. 139 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-152-154-SS	Plug KKV 152 mm for welding-on. 154 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-152-168-SS	Plug KKV 152 mm for welding-on. 168 mm, AISI 316	-	12.5	In stock	Enquiry
TF-KKV-204-204-SS	Plug KKV 204 mm for welding-on. 204 mm, AISI 316	-	12.5	In stock	Enquiry

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A LAUX 42 lever coupling plug with a weld-on connection with wide application np.: for transferring and unloading bulk materials (grain, flour, feed, granulates, cement, minerals), for pressure and vacuum pumps, for building temporary water and air installations in construction, mining and agriculture, and for irrigation systems. Material: steel AISI 316. Maximum Working pressure: 12.5 bar (for fluids), 8 bar (for air). Vacuum tightness.