IT1271225B - Pneumatic actuation device for valve elements and the like - Google Patents

Pneumatic actuation device for valve elements and the like

Info

Publication number
IT1271225B
IT1271225B ITMI941976A ITMI941976A IT1271225B IT 1271225 B IT1271225 B IT 1271225B IT MI941976 A ITMI941976 A IT MI941976A IT MI941976 A ITMI941976 A IT MI941976A IT 1271225 B IT1271225 B IT 1271225B
Authority
IT
Italy
Prior art keywords
piston
travel
pistons
actuation device
pneumatic actuation
Prior art date
Application number
ITMI941976A
Other languages
Italian (it)
Inventor
Carlo Bonomi
Original Assignee
Univers S R L
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univers S R L filed Critical Univers S R L
Priority to ITMI941976A priority Critical patent/IT1271225B/en
Publication of ITMI941976A0 publication Critical patent/ITMI941976A0/en
Publication of ITMI941976A1 publication Critical patent/ITMI941976A1/en
Application granted granted Critical
Publication of IT1271225B publication Critical patent/IT1271225B/en

Links

Abstract

A pneumatic actuation device for the shutter of a valve element comprising a body including a chamber in which a first piston and a second piston move in opposite directions, the pistons having rack type toothings able to engage with a pinion which is rigidly mounted on a shaft able to be connected to a shutter of a valve element which is supposed to be actuated, first means of regulating the end travel in the direction of opening movement of the pistons, these means being inserted in the body at its first end, being adjustable externally to the body and able to lock the first piston in its travel, second means of adjustment of the end travel in the direction of closing movement of the pistons, these means being inserted in the body at its second end, being adjustable externally and able to block the second piston in its travel, characterised in that these second means of regulating the end travel in the closing direction of the pistons are comprised of an adjustment dowel inserted in the body through a cavity, the dowel being engaged in a threaded bushing so that it can move relative to it and at the same time drive it in rotation, the bushing being inserted in the first piston such that, by rotating, it changes its own position on the piston and is able to come up flush against said pinion. <IMAGE>
ITMI941976A 1994-09-28 1994-09-28 Pneumatic actuation device for valve elements and the like IT1271225B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITMI941976A IT1271225B (en) 1994-09-28 1994-09-28 Pneumatic actuation device for valve elements and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI941976A IT1271225B (en) 1994-09-28 1994-09-28 Pneumatic actuation device for valve elements and the like

Publications (3)

Publication Number Publication Date
ITMI941976A0 ITMI941976A0 (en) 1994-09-28
ITMI941976A1 ITMI941976A1 (en) 1996-03-28
IT1271225B true IT1271225B (en) 1997-05-27

Family

ID=11369612

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI941976A IT1271225B (en) 1994-09-28 1994-09-28 Pneumatic actuation device for valve elements and the like

Country Status (1)

Country Link
IT (1) IT1271225B (en)

Also Published As

Publication number Publication date
ITMI941976A1 (en) 1996-03-28
ITMI941976A0 (en) 1994-09-28

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970926