US 11,898,646 B2 · Adjustable valve

Abstract

The present invention relates to adjustable flow control valves, for example to an Adjustable Pressure Limiting (APL) valve. The adjustable valve (2) described comprises a valve body (4) comprising a valve seat (6), a valve member (10) movable relative to the valve seat (6), a first valve cap (20), a second valve cap (50) and a biasing element (30) to bias the valve member (10) away from the first valve cap (20). The first valve cap (20) is movable to increase the biasing force applied by the biasing element (30). The second valve cap (50) is engageable with the first valve cap (20) to prevent such movement of the first valve cap (20) beyond a selected position, but to allow movement of the first valve cap (20) in an opposite direction, way from said position.

Claims19

Dependent claims

An adjustable valve comprising:

a valve body comprising a valve seat;
a valve member movable relative to the valve seat;
a first valve cap;
a second valve cap;
and a biasing element provided between the first valve cap and the valve member such that the first valve member is biased away from the first valve cap by a biasing force from the biasing element;
wherein the first valve cap is movable within a defined range of motion relative to the valve body such that movement of the first cap in a first direction increases the biasing force applied by the biasing element;
and wherein the second valve cap is engageable with the first valve cap to prevent movement of the first valve cap in said first direction but to allow movement of the first valve cap in a second direction, opposite to said first direction, within said defined range of motion.

4 more elements

Dependencies are inferred from the claim text.

Adjustable valve

Life of this patent

Adjustable valve

Life of this patent

Abstract

Claims19