The present disclosure relates to a valve assembly for controlling flow. The valve body has an inlet end and an outlet end. A piston is positioned within the valve body and is movable between an open position to open the valve body and a closed position to close the valve body. A spring is mounted between the piston and a spring adjustment member. A portion of the spring adjustment member is accessible through the inlet end of the valve body so as to be engageable by a tool to facilitate rotation of the spring adjustment member to vary compression of the spring to set a spring pressure rating.

The present disclosure provides a method and apparatus for draining. The apparatus includes a body, the body having a first compartment adjacent to a second compartment, the first compartment having an inlet port fluidly connected to an outlet port, the inlet port defining a needle seat within the first compartment, a first rod hole for operation with a second rod hole in the second compartment, and a plurality of venting holes, the second compartment having a plurality of spaced notches along. The apparatus further includes a setting rod, the setting rod having a shaft and a sealing head, the shaft sized to be slideably maintained in the first rod hole and the second rod hole, the sealing head slideably attached to an end of the shaft and sized to obstruct fluid flow from the inlet port at the needle seat.

A valve assembly, includes a valve body having an inlet portion, an outlet portion, and a constriction portion; a shaft positioned within the valve body and extending along a longitudinal axis of the valve body; a cone provided within the inlet portion and configured to move along the shaft; a spring configured to bias the cone away from the constriction and positioned between a first piston fixed to the cone and a second piston fixed to the shaft; and an adjustable spacer positioned between a fixed position on the shaft and the second piston. The adjustable spacer is adjustable in length to change an effective length of the adjustable spacer and change a position of the second piston on the shaft.

The present disclosure provides a method and apparatus for draining. The apparatus includes a body, the body having a first compartment adjacent to a second compartment, the first compartment having an inlet port fluidly connected to an outlet port, the inlet port defining a needle seat within the first compartment, a first rod hole for operation with a second rod hole in the second compartment, and a plurality of venting holes, the second compartment having a plurality of spaced notches along. The apparatus further includes a setting rod, the setting rod having a shaft and a sealing head, the shaft sized to be slideably maintained in the first rod hole and the second rod hole, the sealing head slideably attached to an end of the shaft and sized to obstruct fluid flow from the inlet port at the needle seat.

A device for controlling the supply of a gas comprises an inlet that can be connected to a gas source, a supply outlet, a regulating chamber communicating with the inlet and outlet, a pressure regulation membrane, means for opening/closing the inlet, and a unit for manually actuating the device, which unit can move with respect to a main axis, wherein the actuation unit is operatively connected to the opening/closing means in order to open/close the inlet, the actuation unit also being operatively connected to the resilient opposition member and comprising means of regulating the resilient opposition member that are capable of varying said opposing force.

Various embodiments are disclosed for a two-way valve. A two-way valve includes a valve body and a valve assembly couplable to the valve body. The valve assembly includes a first valve component and a second valve component. The first valve component is actionable to allow or prevent a first fluid flow through the apparatus in a first direction and the second valve component is actionable to allow or prevent a second fluid flow through the apparatus in a second direction opposite the first direction.

A flow regulation valve includes a housing having a valve seat within the housing. A poppet valve disposed in the housing includes a crown and a spring that biases the crown into engagement with the valve seat. An abutment surface is situated to engage an end of the spring distal from the crown. An adjustor that is accessible from outside the housing selectively sets a tension on the spring by moving the abutment surface relative to the crown.

Various embodiments are disclosed for a two-way valve. A two-way valve includes a valve body and a valve assembly couplable to the valve body. The valve assembly includes a first valve component and a second valve component. The first valve component is actionable to allow or prevent a first fluid flow through the apparatus in a first direction and the second valve component is actionable to allow or prevent a second fluid flow through the apparatus in a second direction opposite the first direction.

A valve assembly, includes a valve body having an inlet portion, an outlet portion, and a constriction portion; a shaft positioned within the valve body and extending along a longitudinal axis of the valve body; a cone provided within the inlet portion and configured to move along the shaft; a spring configured to bias the cone away from the constriction and positioned between a first piston fixed to the cone and a second piston fixed to the shaft; and an adjustable spacer positioned between a fixed position on the shaft and the second piston. The adjustable spacer is adjustable in length to change an effective length of the adjustable spacer and change a position of the second piston on the shaft.

A flow regulation valve includes a housing having a valve seat within the housing. A poppet valve disposed in the housing includes a crown and a spring that biases the crown into engagement with the valve seat. An abutment surface is situated to engage an end of the spring distal from the crown. An adjustor that is accessible from outside the housing selectively sets a tension on the spring by moving the abutment surface relative to the crown.