Abstract:
A gas pressure regulator which comprises the following members: a body (1); a high-pressure cavity (2); an inlet channel (3); a low-pressure cavity (4); a central channel (5); an outlet channel (7); a plunger (6); and a regulation restrictor (8) including a seat (9) onto which a closure member (10) is biased by a spring member (11). This regulator also includes a damping chamber (12) separated from the low-pressure cavity (4) by a body wall (13) having a connecting hole (14) coaxial to the central channel (5). The regulator comprises a sensitive member (15) in the form of a membrane (16) which is integrated in the body and co-operates with an active member (17). The sensitive member (15) is connected to the closure member (10) by means of the plunger (6) which, when passing through the connecting hole (14) of the body wall (13), defines a regulation gap. This regulator is characterised by the plunger being located in a region of the central channel (5), a part of which has a cross section tapering in the direction of the closure member (10), e.g. defining a conical shape or based on an elliptic generatrix. The inlet of the outlet channel (7) is located in the immediate vicinity of the connecting hole (14) inlet. The width of the gap between the plunger (6) and the connecting hole (14) is defined according to variable mathematical correlations, while the high-pressure cavity (2) and the regulation restrictor (8) are located within a supply connector (20). The membrane (16) of the sensitive member (15) may be in the form of separate plates defining between them a sealed damping cavity (26).
Abstract:
A gas pressure reducer (100) comprises a mobile element (2) arranged for driving a pressure regulating valve (5) according to a pressure force, a biasing element (3) for pushing the mobile element toward a rest position, and an electrically-powered master system which acts on the biasing element for varying a return force of said biasing element. The master system allows varying a reference pressure value for the regulation of the pressure existing at a low pressure gas outlet (1 LP). When the master system is no longer electrically supplied, the mobile element (2) is driven by the pressure force with respect to a last value of the return force existing just before electrical supply of said master system has stopped.
Abstract:
Un détendeur de gaz comprimé comporte une chambre haute pression (10) logée dans un corps (1) et destinée à être relier à un réservoir de gaz comprimé, une chambre basse pression (15) pour recevoir le gaz détendu, un clapet (70), un conduit (17) reliant la chambre haute pression (10) à la chambre basse pression (15), le clapet (70) étant logé dans la chambre haute pression (10) et étant en appui contre un siège (750) au débouché du conduit (17) dans la chambre haute pression (10), un poussoir (74) logé dans la chambre basse pression (15) et en contact avec le clapet (70) à travers le conduit (17) et des moyens d'équilibrage (71, 72, 73) agissant sur le clapet (70) par l'intermédiaire du poussoir (74) en fonction de la pression dans la chambre basse pression (15). Le clapet (70) comporte une tige (702) de section équivalente à celle du conduit (17) au niveau du siège (750), la tige (702) s'étendant jusque dans une chambre de compensation (77) séparée de manière étanche de la chambre haute pression (10).
Abstract:
Un détendeur de gaz comprimé comporte un corps, un raccord d'entrée fixé sur le corps pour connecter le détendeur à un réservoir de gaz comprimé, un raccord de sortie fixé sur le corps pour délivrer le gaz détendu, des moyens de détente pour réduire la pression du gaz en provenance du raccord d'entrée à un niveau de pression prédéterminé vers le raccord de sortie et des moyens de réglage montés sur le corps et agissant sur les moyens de détente pour déterminer le niveau de pression du gaz après détente. Le détendeur comporte des moyens d'ajustage pour ajuster la position relative d'une échelle et d'un repère, l'échelle et le repère étant liés l'un au corps et l'autre aux moyens de réglage afin de repérer la position relative des moyens de réglage sur le corps et en ce qu'il ne comporte pas de moyens d'indication mesurée de la pression de détente.
Abstract:
Temperature-controlled pressure regulators are described. An example temperature-controlled pressure regulator (200) described herein includes a regulator body (202) having an inlet (206) fluidly coupled to an outlet (208) via a first passageway. A heat block (204) is disposed within the regulator body and receives at least a portion of the first passageway. The heat block is to provide heat to the process fluid as the process fluid flows through the heat block via the first passageway, which separates the process fluid from the heat block.
Abstract:
The gas regulator with non-metal components comprises a diaphragm (4), a body (1), an adjustment screw (2), and a cap (3) made of a non-metal thermoplastic material with molded threads. The body (1) is connected to the cap (3) via a large-diameter thread (6), and the adjustment screw (2) is mounted in the cap via a small diameter thread (5); the molded threads on the cap (3) have an equal pitch h and are arranged coaxially. The cap (3), the adjustment screw (2) and the body (1) are made of glass-nylon composite with molded coaxial threads.
Abstract:
Modular in-line fluid regulators are described. One described example modular fluid regulator apparatus includes a body having a fluid inlet and a threaded outer surface to engage a threaded opening in another fluid regulator to serially fluidly couple first and second fluid regulators. The example fluid regulator apparatus also includes valve to control a flow of fluid through the first fluid regulator, and a pressure sensing member operatively coupled to the valve to control a position of the valve to provide a regulated output pressure at an outlet of the first fluid regulator. The pressure sensing member and the valve are configured to be received in a cavity of the second fluid regulator adjacent the threaded opening.
Abstract:
The present invention relates to a regulator for use in the field of handling high purity fluids. The regulator of the present invention adopts an improved plug-fixing system in which a plug component is fixed directly in the body of the regulator to protect the screw joint portion of the plug from dust or foreign substances, prevent noise, and ensure safety of the fluid flow. Additionally, the regulator eliminates the need for extra parts, which reduces the number of required parts and the size of the device.
Abstract:
A multifunctional safety valve device (1) with an incorporated proportional pressure regulator, to be used in a line feeding an aeriform fluid to a user; such as a generic gas feeding a gas appliance, comprises a body (2) in which a conduit (3) for said fluid or gas is defined, said conduit (3) being connected to a gas feed line and to a line delivering the gas to the user, said conduit (3) comprising a first passage (6) to be intercepted by a first valving element (4A) and a second passage (7) to be intercepted or selectively restricted by second valving element (5A), positioned downstream of the first, to act as a gas pressure regulator and modulator, said valving elements (4A, 5A) being operated by corresponding electromagnetic actuators (15, 16) and urged into closure, i.e. into the position in which they intercept the respective passages, at least by a corresponding spring (30,31), the second valving element (5A) cooperating with a membrane (21) subjected to the gas pressure so as to urge said second valving element (5A) into the closed position. The membrane (21) has, subjected to the gas pressure, a surface (21A) which is larger than the surface (5K) of the valving element (5A) subjected to the same gas pressure, to hence maintain the valving element closed, this latter presenting, downstream of the second passage (7), a portion (35B) with a flexible rim (42) arranged to sealedly close this latter when intercepted by the second valving element (5A).