Centrul De Cercetari Si Proiectari Pentru Gaz-Metan
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Priority to RO106483ApriorityCriticalpatent/RO83076B1/en
Publication of RO83076A2publicationCriticalpatent/RO83076A2/en
Publication of RO83076B1publicationCriticalpatent/RO83076B1/en
Inventia se refera la un releu de presiune diferentiala destinat sesizarii a doua valori prestabilite, ale presiunii masuate. Releul de presiune diferentiala este alcatuit din niste capace de prindere prevazute cu niste racorduri între care sînt montate niste membrane în contact cu nuiste discuri, astfel încî sub actiunea presiunii acestea împing niste piese de ghidare separate de discuri prin niste membrane de etansare.The invention relates to a differential pressure relay designed to sense two preset values of the measured pressure. The differential pressure relay consists of some gripping caps provided with some joints between which some membranes are mounted in contact with the discs, thus under the action of this pressure pushing some guiding parts separated by discs through some sealing membranes.
PROCEDURE TO RECOVER CAPROLACTAM FROM THE RESIDUE REMAINING IN THE DISTILLATION, UNDER REDUCED PRESSURE, OF IMPURE CAPROLACTAM OBTAINED BY TRANSPOSITION OF CYCLOHEXANONE-OXIMA