A vent valve opens to provide a fluid path from a regulated pressure port to a vent port, a supply valve opens to provide a fluid path from the regulated pressure port to a supply pressure port. A control piston has a linear cam profile with a vent cam that opens the vent valve and a supply cam that opens the supply pressure valve.

A vent valve opens to provide a fluid path from a regulated pressure port to a vent port, a supply valve opens to provide a fluid path from the regulated pressure port to a supply pressure port. A control piston has a linear cam profile with a vent cam that opens the vent valve and a supply cam that opens the supply pressure valve.

A pressure regulator includes a body including a regulated fluid volume, at least one vent passage and fluid supply passage, a dampening piston bore and one regulated fluid volume outlet passage, a regulated fluid pressure piston, the regulated fluid pressure piston having a first side exposed to the regulated fluid volume, and a second surface exposed outwardly of the body, an external biasing member contactable with the second surface of the piston and providing a force on the piston directed inwardly of the body, a gate connected to the piston and having a first seal and a second seal, a dampening piston disposed in the dampening piston bore, the dampening piston disposed between a dampening volume and the regulated fluid volume, the dampening piston including a bore extending therethrough and communicable between the regulated fluid volume and the dampening volume, the bore including an orifice position therein, and, an opening extending from the dampening volume outwardly the body, the opening sealable by a removable plug, the opening aligned with the bore in the dampening piston and the orifice position therein.

A vent valve opens to provide a fluid path from a regulated pressure port to a vent port, a supply valve opens to provide a fluid path from the regulated pressure port to a supply pressure port. A control piston has a linear cam profile with a vent cam that opens the vent valve and a supply cam that opens the supply pressure valve.

A pressure regulator includes a body including a regulated fluid volume, at least one vent passage and fluid supply passage, a dampening piston bore and one regulated fluid volume outlet passage, a regulated fluid pressure piston, the regulated fluid pressure piston having a first side exposed to the regulated fluid volume, and a second surface exposed outwardly of the body, an external biasing member contactable with the second surface of the piston and providing a force on the piston directed inwardly of the body, a gate connected to the piston and having a first seal and a second seal, a dampening piston disposed in the dampening piston bore, the dampening piston disposed between a dampening volume and the regulated fluid volume, the dampening piston including a bore extending therethrough and communicable between the regulated fluid volume and the dampening volume, the bore including an orifice position therein, and, an opening extending from the dampening volume outwardly the body, the opening sealable by a removable plug, the opening aligned with the bore in the dampening piston and the orifice position therein.

A vent valve opens to provide a fluid path from a regulated pressure port to a vent port, a supply valve opens to provide a fluid path from the regulated pressure port to a supply pressure port. A control piston has a linear cam profile with a vent cam that opens the vent valve and a supply cam that opens the supply pressure valve.

A vent valve opens to provide a fluid path from a regulated pressure port to a vent port, a supply valve opens to provide a fluid path from the regulated pressure port to a supply pressure port. A control piston has a linear cam profile with a vent cam that opens the vent valve and a supply cam that opens the supply pressure valve.