Multiple valve manifold for use with a pressure processing...

G - Physics – 01 – L

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Details

G01L 19/00 (2006.01) F15B 13/00 (2006.01) F16K 11/22 (2006.01) F16K 27/00 (2006.01)

Patent

CA 2239492

An integral valve manifold body (120) for a pressure transmitter has four instrument mounting holes (160, 161, 162, 163) the centres of which define corners of an imaginary prism. The valve chambers which define respective valve seats (148, 152, etc.) are so disposed that the valve seats and at least a part of each valve chambers are all within the imaginary prism. Two valve bores, preferably vent valve bores (14.8, 152), are machined in one (125) of peripheral walls of the manifold body. They are provided with valves of the type where the valve stem is sealed against the valve chamber (14, 152) rather than the bonnet. All passages (142, 145, etc.) of the passageway system of the manifold are straight, disposed within said prism, and parallel with at least one of planar exterior walls (123, 124, 125, etc.) of manifold block to facilitate the manufacture.

Ce corps de collecteur à soupapes, en une seule pièce, (120) pour un transmetteur de pression, comprend quatre trous (160, 161, 162, 163) destinés au montages d'instruments, dont les centres définissent les angles d'un prisme imaginaire. Les chambres de soupapes, qui définissent des sièges de soupape respectifs (148, 152 etc.), sont disposées de telle sorte que les sièges de soupape, et au moins une partie de chacune des chambres, soient tous contenus dans le prisme imaginaire. Deux alésages de soupapes, de préférence des alésages de soupapes de mise à l'air libre (148, 152), sont usinés dans l'une (125) des parois périphériques du corps du collecteur. Ces alésages sont pourvus de soupapes du type comportant une tige de soupape venant en contact étanche contre la chambre de soupape (14, 152) plutôt que contre le chapeau. Tous les passages (142, 145 etc.) du système de voies du collecteur sont rectilignes, se trouvent dans ledit prisme et sont parallèles au moins à l'une des parois externes planes (123, 124, 125 etc.) du bloc collecteur, ce qui simplifie la fabrication de ce dernier.

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