LN2浴式低温恒温器(杜瓦瓶)由DURAN硼硅酸盐玻璃3.3制成,符合DIN/ISO 3585,已被设计用于液氮使用。它们既可以用作单个低温恒温器,也可以用作液氦低温恒温器的LN2冷却罩。低温恒温器只能定制。改变尺寸,连接或体积通常可以不额外收费。表中所列的LN2低温恒温器对应的是最常见的尺寸和体积。标准的LN2低温恒温器带有相反的观察条。低温恒温器也可以提供一个观察条或全镀银。标准低温恒温器可用纯玻璃制成。只需要付一点额外的费用,我们就可以给他们配备一个底盖或一个铝保护罩和观赏带。LHe浴式低温恒温器(杜瓦瓶)由DURAN硼硅酸盐玻璃3.3制成,符合DIN/ISO 3585,并已被设计用于液氦的使用。 Glass cryostats must be designed so that they can be re-evacuated, as DURAN borosilicate glass 3.3 is not helium-tight. The standard vacuum connection used is an NW25 glass flange with clamp and O-ring, which makes it possible to establish the connection to the vacuum pump using small flange components made from metal. Upon request, a vacuum glass tap or a glued-on metal flange can be delivered as a pump flange.