An adjustable pressure-limiting valve (commonly abbreviated to APL valve, and also referred to as an expiratory valve, relief valve or spill valve) is a type of flow control valve used in …

The APL (Adjustable Pressure-Limiting) valve controls pressure in the anesthesia breathing circuit during manual or spontaneous ventilation. It allows excess gas to escape from the circuit and …

Apr 6, 2025 · An Adjustable Pressure-Limiting Valve (APL valve) serves a critical role in anesthetic systems, primarily to manage and regulate gas flow during anesthesia administration.

Modern anaesthesia machines primarily use circle systems with CO 2 absorbers designed for low-flow anaesthesia. An expiratory adjustable pressure-limiting (APL) valve which creates a …

Nov 19, 2025 · Learn what is the safety valve in an anesthesia machine, known as the Adjustable Pressure-Limiting (APL) valve, and its crucial role in preventing dangerous airway pressure …

In this video, we explore the Adjustable Pressure Limiting (APL) valve in an anesthesia machine, an essential component for controlling pressure within the breathing circuit.

An adjustable pressure-limiting valve (commonly abbreviated to APL valve, and also referred to as an expiratory valve, relief valve or spill valve) is a type of flow control valve used in …

An adjustable pressure-limiting valve (APL valve) is a user-adjustable, spring-loaded, one-way valve integrated into anesthesia breathing systems to regulate airway pressure by venting …

Feb 5, 2024 · The adjustable pressure limiting (APL) valve is a one-way, spring-loaded valve that allows the maintenance of variable pressures within the anesthesia breathing system and …

The purpose of the APL valve and the scavenging interface system is to protect the patient from negative or excessive positive airway pressures. Typically, the scavenging interface system …