Clips for joints ST 45/40

Joint clamps NS 45/40 are robust laboratory spring clamps engineered to secure larger conical ground-glass joints in demanding glassware setups. Produced from corrosion-resistant V2A stainless steel as joint springs, they furnish dependable holding force for standard taper joints in the NS 45/40 to NS 45/50 range. By clamping the ground joint pair together, they minimise the risk of unintended opening during vacuum filtration, distillation under reduced pressure or mechanically agitated reactions. They find regular use in preparative organic chemistry, scale-up distillation trains and multi-neck reactor assemblies where larger NS sizes are specified. Delivered in packs of 10 pieces from manufacturer Witeg, each clamp has a net weight of 0,016 kg and a compact wire design that encircles the joint without blocking adjacent fittings or heating mantles. The spring geometry remains serviceable through repeated fitting cycles and is straightforward to apply or remove even when wearing protective gloves. Compatible with conventional borosilicate laboratory glassware, these wire joint clamps contribute to stable, well-organised apparatus configurations in research, production-support and teaching laboratories.

This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.

Key features

• Pack size: 10 pc(s)
• Product type: Joint spring clamp
• Material: V2A stainless steel
• Suitable for: Conical joints NS 45/40 – 45/50